Intercooler. nos, methanol
 

PK,
I am counting DODOS (nights). I go down to FL to my condo at end of month for almost a month. Here we are going to have snow almost untill June !!!
I forgot to send you picture of fan already fixed inside trunk lid just under scoop. It is a powerfull 10 inches 1200 cfm. It will take air from outside, thru filtered scoop. Air will flow on intercooler and will evacuate by the two one way vents located on each rear side ot trunk. They look like shark Jaws. They have high capacity to evacuate and are weather tight. For intercoolers, I will put 4 CO2 foggers instead of aluminium tube. I will freeze them prior to spin the car by a push button located, as other systems switches, in ashtray. That's the messs you actually see on console picture. My only nightmare and probably you and your friends can help me. How to fix my Line Lock that permits to lock front wheels to heat rear tires. Brakes lines on porsche are not common like most of cars.
Enclose picture of fan
Good night boy
Jacques

i dont understand why you have a hood scoop in the front when your intercoolers are in the rear.

You are right, it looks like front hood. My Boxster has full Aerokit. Brake light and spoiler are removed. It is full lid made of composite.
Bests
Jacques

I see what you did there... put a hood emblem on the rear lid...

So the fan is for pushing air out? Where are you going to be bringing air into the trunk?

Hey Jacques,

Sounds like you got the your airflow sorted out, the only reason I asked is that I've done a fair amount of work in the HVAC industry and those guys are hyper vigilant about intake and exhaust efficiency and noise issues.

In general you want your intake opening no less than 2/3 the surface area of the heat exchanger at its tightest.

But I guess if you clobber it with `1200CFM your O.K. May be noisy but who cares on the track at ``60mph,

Sorry I'm not aware of anything to lock up the front breaks for Porsche's. Might be an interesting project for somebody to “hack” the ABS system to accomplish it.

Regards, PK

P.S. If your so inclined, I'm a designer and have done a bit of automotive work (Toyota and Lexus). If you wanted me to design a more “Boxster like” scoop that any Florida surfboard shaper cold make...I might be able to do it for a token couple of beers.

You are right, I forgot to specify. The car is a kind of phantom. So I added emblem on lid. To answer your question, I made oppenings on lid (picture) and fan is bolted inside. It pumps air from outside, blow in the trunk and air evacuates by openings on each side.
I appreciate your questions. It helps me better detailing work.
Thanks very much
Jacques

Hmm no updates on this thread so bump it goes...


Whats up Jacques! thanks again for the oil info. I was going to respond via PMs but figured it's time to share with the forum so why not kill 2 birds with 1 stone.

Here are my good friends el cheapo made in china t3/t4 hybrid and intercooler before going into the car. The pix of the intercooler installed is a spare for mock up, excuse the dirtyness.

http://i43.photobucket.com/albums/e3.../turbokit1.jpg

I love having 2 trunks and I wanted to keep them both so I did this.


http://i43.photobucket.com/albums/e3...ustShop017.jpg

Here's my little buddy saying hi to everyone with his ass end showing

http://i43.photobucket.com/albums/e3...ustShop018.jpg

To PK2: what up Peter

Did you get your meth injection going yet? With our already retarded timing 91 octane cars I figure both of us has got to get this going sooner or later. Are you planning on going to the Porsche event in Fontana this coming month? I'd love to see your car and compare notes.

To Gary: I really got to update but I'm going to get this thing running 100% first. Thank God stock driveability is present. Mark my words, tomorrow no drip and the first WOT run at a cool 3.6xx psi on 91 :D

Forced Induction rocks :cheers:

------------------------------------------------------------------------------------

Pretty cool looking pics, hope it works well. I'm still working on peripherals as fast as international mail permits, but really everything is peripheral. The last step is the mere pulley.

Did wire in my EGT gauge to the two sensors this weekend, ...works like a charm.

Meth/O2:, Now heres a little laugh, I did a little quid pro quo for Aquamist ( see it at http://forums.evolutionm.net/showthread.php?t=333872 I'm the “industrial product designer” mentioned). so one of their engineers is building me a custom PWM (AIC like) valve controller for absolutely precise meth/h20 metering at a constant 100 PSI, fully atomized at the nozzle (slick trick). Will be coming in from the U.K,. hopefully sooner than later.

After a month and half I got my comm cable for the Perfect Power AIC from in S. Africa so now I can talk to it.. So the plan now is to data-log my current AIC for a baseline map, do a transplant and work from there.

As for timing retard, I'm brewing my own 93 with race fuel so It's O.K. for now. EGT #'s confirm.

I have heard mixed messages regarding timing retard with these things. As a skip (2) tooth timing trigger, it gives you about 12 degrees of play. However, I got the impression with my AIC's instructions, that I might have to completely remap the timing, ditching the all existing loop, not really keen on that, I kinda wish with the meth/water injection I won't have to me with the timing.


Regards, PK

I hate saying it, but I think as long as their isn't an affordable piggy-back for the DME the best band aid for us is going to be the methanol injection. It's not like we're using uber amounts of boost here and the meth injection would certainly be like running race gas all the time. What kind of race gas are you using btw? I found a place in Ontario that's selling VP MS 109 for 64.00 for a 5 gallon drum. I want to run leaded C16 but I'm too scared of killing my o2 sensors :(

Just a dumb question on programing.

Turbowerx reprogrammed my stock ECU.
I'm asking weather or not it would be beneficial to talk to him and see if he can adjust parameters as you want and program your ecu with a somewhat custom program.

Doing this would by no means be a perfect answer and it would require some knowledge to decide what you want done to the ecu, I think all of you guys doing these mods know what sort of changes you would make to the ecu.

As I said this may be a mute point because of the other mods you guys have done. But it may be wort looking into it. If you guys want I can shoot him an email and see if this is even possible.

By the way, I took a few guys with high horsepower mustangs for rides this weekend and everyone of them where impressed. I love my little Box.

I really appreciate it Gary, the only thing thats holding me back is just the price of the reflash. I got quoted by iA that a custom tune by them will be $2,000 which is just out of the question when I just asked for a simple tune. Simple FI equation would be to take out a degree of timing per psi.

Hey Gary,

Reprogramming an ECU seems to be the preferred method, I guess theres probably more to it than just being a cleaner install. In my case though, I'd think it would require the ECU and engine with all mods be together and in one place to reprogram.

In my mind, I can tune my piggyback AIC to react to the same inputs the ECU uses (and more) and make the same adjustments as a flashed ECU has. Mine will have the added feature of also using the same variables and controller to calculate an shoot (thanks Aquamist) the necessary cooling (h20/meth).

So I don't know, for me, given flexibility of the piggyback/AIC for A/F, timing and in my case H2O/meth. Monitors the same input, tweaks the same output and then some (both in and out). Plus you have the ability to make a quick change with a new mod ...works for me.

Regards, PK

-----------------------------------------------------------------------------------------

I guess affordability is a relative term but for me half the fun is getting performance for pennies on the dollar. Split Second has a pretty good little piggyback, the FTC1, & a version hardwired for contemporary Porsche 6's... Boxster included. It definitely does timing. ($525 new). Someone gave me one from a Miata, I could probably make work but...

A seemingly knowledgeable performance guy here (somewhere) steered me to the Perfect Power SMT6. He implied it would do it all...better than the split Second. The manual is a little pigeon englishee which caused me to question if I could tweak the timing, but I'm now pretty sure I can. They show up on Ebay every month or so and go for about $150 ($425 new).

-----------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------

You would think, but then theres the 11:1 comp. ratio.

-----------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------

I go to a 76 station and fill the tank with about 3 gallons 100 oct., the rest 91. Then fill up a 4 gallon tank in my trunks. About $8/gal.

$64 for 5 gals. VP MS 109 is pretty sweet. Course I'd burn up the savings getting out there to pick it up.

When is Fontana? It would be fun to see what you've got cooking.

Regards, PK

Those piggybacks sound sweet, I'm going to have to look into them when more $$ free's up. I'm curious how has your car reacted so far to using regular 91? I'm actually basing my cars response to boost from your cars experience and reading your post. I know you haven't been intercooled all this time but you are running an AIC. I'm going the other way but I plan on using the methanol as an additional means of fuel not to mention getting to run 117 octane on boost ;)

Quite frankly though I don't think our cars need anymore fuel then what they have now for how much boost we're running. This seems to be evident by both porsche not changing any of the fuel components nor does it seem turbowerx offer any sort of upgraded injectors for their TT set up any longer.... Makes you go hmmmmmmmmmmm


About the Porsche Festival of Speed it's going to be at Fontana raceway April 4-6. Theres a socal porsche contingent ala http://www.pcars.us/about3371.html which will be going april 5 @ 9am. It's said that you get free parking and admission for any porsche crew thats 20+ heads or more so I'm tagging along with them. Hope you can make it.

BTW, it seems that the Best Most Reliable combination for anyone whose thinking of forced induction for their boxster's should get one that has a black exterior and beige interior. :D

Well, I run 93 by mixing 91 with 100... 4 to 1 ratio. I haven't run it on 91. But at 93 it does fine, no detonation I can detect. The EGT gauge bares that out . At's peek, exhaust gas temps are in the middle of the “hot” safety range.

It's running now with a pretty crappy piggy back AIC, It does nothing with the timing, it just runs rich at boost, but it works fine for now.

My 2 cents worth is that you can get a used Ebay SMT6 for the price of tank of 119, But let me be th guinea pig before you invest, but I'm 95% sure every thing will fly. (Or just nabb one and if it doesn't fly, put it back on e bay, they sell easily).


That interesting about turbowerks not including larger injectors, may just mean the existing injectors are not maxed out under stock conditions. My setup has an add 7th 500cc injector. But apparently this is not ideal, The SMT6 can hijack the stock injectors and remap accordingly eliminating need for 7th injector. But I'm going 1 step at a time

Regards, PK

Ever considered xylene or toluene? I'm looking at the conversion tables and I think the way they do it is by basic average ratio's. If thats the case, xylene is 117 or there abouts and you can mix 1 gallon of that per 8 gallons of 91 to 1 gallon of that and get an average higher then 4:1 with 100 octane.

It's odd even not under boost, the car runs SO much smoother with a decent octane gas as opposed to our 91 =/

-------------------------------------------------------------------------------------------------------
Ya I did some reading about toluene. I haven't even tried to find it. I assumed it was like all good things, banned by the Ca. Air Resources Board . I'd certainly give a try if it's around and it saves a few $. Suposed to be paint thinner of some sort (no?).

Read a couple of hard-core articles on it. One was a bit breathless about how great it was, still rang like good science though. But then another suggested that, in short, it hits a point of diminishing returns despite the octane. Something about the speed of the heat dissipation or something...pretty molecular.

As for shooting for 100 oct., I've run it that way, wasn't hypervigilant but, just by the seat of my pants, I didn't notice a big change. As I understand it, with a stock engine anyway, you buy yourself exactly 0 if you go over the manufacturers recommendation. Obviously forced induction changes all that but by how much I wonder.

Regards, PK

trunk almost done
 

Hi Pk, some new pictures for you guys, I started engine with new equipment and runs surprising smooth. But still 6 feet of snow behind door.
I also include picture of buttons of methanol and nitro or probably C02 in ashtray
Take care guys




As for shooting for 100 oct., I've run it that way, wasn't hypervigilant but, just by the seat of my pants, I didn't notice a big change. As I understand it, with a stock engine anyway, you buy yourself exactly 0 if you go over the manufacturers recommendation. Obviously forced induction changes all that but by how much I wonder.

Regards, PK[/QUOTE]

Wow, it ran ok with no hose clamps on your intercooler? Min feels like 3 cylinders if everythings not cinched tight.

What are you using as a controler for your meth?

Regardds, PK

Toulene
 

So, I found a source for toluene, $16 per gallon. Any body have an equation or chart showing ratios of toulen to 91 gas to figure a target oct. number?

Regards, P

Hi Pk, I removed everything to clean trunk. That's why clamps are not on pictures. Methanol is AEM. It comes with progressive control based on boost pressure. Is is set from 2 to 7 psi. I can set from 0 to almost anything over. I will have to road test now.
Bests
Jacques

P

It's probably similar to the 91 to 100 octane chart. All they do is average out the number ratio. Unfortunately xylene and toluene have gone way up, they used to be 35-40 for a 5 gallon drum, but not anymore. The mixture I made is with 4 gallons of 100 and 1 gallon of xylene. Cost for me is $43.00 and the mixture adds up to 103.4xx octane. VP racing MS 109 is 103 octane but they charge $64.00 for a 5 gallon drum. If you look at the main ingredients you'll see ......... you guessed it Xylene :cool:


I'd love to use leaded gas like C16 but cats and o2 sensors are way too expensive on these cars.

----------------------------------------------------------------------------------------------------
Ya it is just a ratio thing the equation is just ratio based on know outcomes of mixes ...I'll figure it out. I pay $8+ a gallon for 100. to get the minimum 93...If Toluene is double the price and at least double the strength, it's a bit more convenient. A little mental Calisthenics make me believe it might be a push, does sound though like you saved a few bucks

I read a couple really in depth articles on these additives, wish I could dig up the links. Theres lots of nuance. Toluene seems the pretty good because theres a lot in regular fuel anyways and, for what it's worth, the EU uses more than we do. So I guess it's pretty safe for their engines

Regards, PK

Found one http://www.offroaders.com/tech/octane.htm

PK

Have you heard of AEM's new FIC? I think this might be the answer on how to fine tune our motors. FIC: Fuel and Ignition Control. Along with AEM's back up, this should be a great tool for our cars. It was made specifically for new OBD II cars like ours, and so far I've read it works on MAF honda's and toyota's that have our semi-wideband o2 sensors. Cheaply priced too, I've found a few new ones for $350.

Joe

I know most cars that run race fuel and street fuel use 2 adjustable program maps, if a car was programed to run 93 but 103 was ran would there be a noticeable power difference?

Gary

Yep and kill an already week O2 sensor. Ask me how I know. ;)

So I can assume that 103 does make more power but may hurt o2 sensors?

I will just put some cutouts in before my o2s run some 103 and see what happens?? :)

I dont like hurting things so I will just leave the high octane stuff to the guys that can fix their own engines.

Hi Gary

103 wont hurt your o2 sensors, unless it's LEADED 103 which wouldn't make any sense for the manufactuers to make anyway. In fact, you can go to VPracing.com and look for their streetblaze 100 formula which is marketed as very friendly to OBD II based components.

So far general consensus from 6speed from the 996TT/GT2 section has been VP racing MS 109 to be the pill of choice when it comes to unleaded race gas. Those guys have provided thousands of miles logged on MS109 (which is their most potent unleaded race gas) with no ill-effects to their o2 sensors. Keep in mind that they really don't want to hurt their o2 sensors since they use a highly sensitive and very costly o2 sensors (relative to ours, theirs cost 500+ since it's basically a wideband).

HOWEVER, even they along with all the other turbo shops will concede that if you want the most fun out of your turbo set up would have to be the use of leaded race gas like VP C16 (Leaded 117 octane) or VP Import (Leaded 120+) . These fuel's WILL eventually kill your o2 sensor and plug your cats :D


Oh yea in order to take full advantage of running higher octane gas, a tune would be needed. Not that it would blow up the motor, it's actually just to raise certain peremeters such as higher boost or more aggressive ignition timing or both which you can do safely at higher levels because race gas burns slower.

The really cool thing about newer and newer DME's is that they've gotten very good at not killing themselves from knock or being lean. The motor doesn't have the capability of knowing what octane your putting into it. What it does know is that your getting X amount of airflow, so it puts X amount of fuel at X time while monitoring both the knock sensor, o2 sensor and MAF sensor.

All it can really see is that your putting this much air into it so it puts in this much fuel. If your putting in something with lower octane then what it's supposed to be used, it'll see this because regardless your engine will knock. When it knocks it'll switch over to a less aggressive timing map and maybe throw in more fuel till knock is lowered to an acceptable point.

Joe

Hello Joe,

I'd heard of them but wasn't aware of the Fic product. Has nice documentation and thats sort of rare. That and If it has a good software, is half the game or more. It's really helpful if theres documentation specific for your car. It takes awhile for the new kids on the block to build up a data base for the zillions of cars.

Compared to my SMT6, or a SMT7 or a Unichip or a Split Second or dozens of others, being new, It probably has more mapping cells and a more robust processor. But, I'm not really sure you need that much nuance more cells or a speedier processor affords. The calculations these thing have to process is pretty rudimentary and output speeds are pretty slow 300 or 400 hz is about max. Nothing compare to an ipod.

Most of these things, including above listed, do all the same; timing and injector control with 3d maps... and then some and some are pre-setup for a Box baseline to some degree.

But worth looking into if your shopping for a “new” box, the price is right.

Regards, Peter

Is there an acceptable knock?? I thought that was the curse of forced injection on these things. Plenty of people thought I was nuts putting this thing on, But I got the impression the bad rap was from people romping around on 91 oct. or having it over-boosted with no compensation.

Regards, PK

Whats up PK

With all DMEs there's got to be a range of which is acceptable due background noise thats inherently going to be picked up and registered as such. However just by looking at tuners responses from 6speed, Porsche's own knock code isn't touched even by the likes of GIAC or Softronic because it's just that good. All they really do is just tune the ignition and fuel injection maps anyway.

It's just like you said, the folks that bad mouth this or say that don't have any experience or just don't do the proper homework about these kinds of setups. Running without an EGT, wideband, etc etc and just relying on the tuner is just plain crazy for the simple fact that things can happen. Things like the gas station having bad or watered down gasoline.

Best,
Joe

--------------------------------------------------------------------------------------------------
Hey Joe,

Come to think of it I guess I have read about the little transient “noise” inherent in knox & other sensitive sensor circuitry. Didn't put it together with the expression “acceptable knock”. I wonder how you measure it (Ive heard of little microphone in the eng. Compartment...). Guess the EGT gage should say it all though.

EGT sensors are all hooked up. Kinda remarkable how much heat the super creates.

Funny I never thought to pick the brains of the big GT boys on 6Speedoline, felt like I might as well be coming around in a soap-box derby car. Every time I hear of, or am thinking of, something I want do, a Google search always winds me up at some rice burner forum.

Must say I've learned one 'elluva lot at those forums. Those guy are doing it all every day and to the max. Aside from this little cadre here, It's pretty hard to find anyone doing much ongoing stuff with the Boxster.

I'm still waiting for my little custom h20/meth widget controller from Aquamist (its real the...guy sent me a pick). RMA'd my O2 controller and it turns out there was nothing wrong with it at there end so it's coming back, not sure where I'm off on this end. Thought I gave it all the once over twice.


Regards, PK

Good evening everyone,

You mention that the sc creates alot of heat. Did you get EGT readings prior to installing the sc? If so what was the baseline compared to now?

A few more gauges will be one of my summer projects, dont worry guys I have something pretty sharp up my sleeve.

With the dropping in price of the Boxster and the racing series getting off to a good start I think more and more shops will make Boxster specific parts for the engine and suspension.

There is allot of knowledge to be learned from the "ricer" guys. I find myself reading the super streets type of magazines to see what they are doing. I agree that they know what they are doing and they push those cars to the edge.

To update you guys on my car, I added the lower suspension mount a few weekends ago, it makes a difference!! I think the difference may be larger in my car with out the aluminum plate than what most guys see. The cars with the plate do see a large difference, so I am not sure what the plate does. But because of my intercooler I mounted it below the mounts.

In the picture the bolts where not tightened but i promise they where before the test drive.

And to everyone:
More (horse) power to you!!

Gary

Good thing I plan on keeping this car for awhile otherwise I'd cringe on how much I'm probably going to spend on it once power gets done and suspension needs to be addressed :ah:

All in good fun though. In time these cars will catch on as certain stigma's have to be broken. It took nearly a decade and a half to get the E30 and E36 BMW guys to get up to where they are now in terms of power mods for decent cost and our platform will face a teething phase as the previous generation of owners will get replaced by ones who are more daring when it comes to modifying their cars. When it comes down to it, the answers have already been laid out by the import/domestic crowd who have been dealing with (engine wise) on how to get the best out of a high compression low boost situations.

PK:
Thats what a knock sensor pretty much is, an electronic microphone. The hard part is to program the DME to recognize whats knock, whats not, and whats acceptable and whats ideal. That meth injection is going to rock though :cool:

Gary:
Thats going to be on my next thing to get list. That and some nice R-Comps :D

Hey Gary
-----------------------------------------------------------------------------------------------
I unfortunately had the super in long before the EGT jazz was installed. The only benchmark I have is an article I stumbled on, regarding a Land Rover, saying 700c was nice, 780c was pushing it.

Assuming my gage is reasonably accurate, I'm in that ball park under pretty full load down the freeway. I've never heard a ping or knock under heavy load (not sure I would though)...might go for a romp with the motor lid off and the top up, pretty sure I'd hear anything ugly.

So, I figure I'll probably be using my current temps as a bench mark.


The suspension bars got to make a huge diff. on your car without the aluminum plate. Trivia; long before Pedro started selling those things a guy name Ernie (I guess) created the DYI “Ernie bar”. There was a thread about it somewhere around here.

I just got my little custom PWM valve controller from my man at Aquamist. Got to pickup a little PWM valve and I'm going start putting it all together. Also, I'd like to find a digital data logger so I can figure out what my 7th injector is doing and when to program a preliminary map for my new AIC.

More guages,,go man go...

Regards, PK

--------------------------------------------------------------------------------------------------
I just got my little custom h20/met valve controller from across the pond. Pretty cool how it works. I'll be able to meter out the cocktail and into the intake with the precision of a fuel injector. Probably far more accurately then motor will ever care.

So ya, maybe I won't ever be challenging the Knock sensors. But a microphone eh, no sh_t. I suppose though if you could capture the DME processed & calulated knock signal, you have sound a buzzer or somthing. On the wireing diagram for the DME, I think it shows an unused pin labeled "knox"

Your right that the go fast technology is pretty established. I think the Japanese cars have a leg up though in that they don't have very high compression. I think those guys running a 25psi boost are doing it on a stock block. If we really wanted to, we'd tear our motors down and get some custom lower compression pistons & rings...they can be had... 'bout $100 each



Regards, PK

Hey guys!

any updates??

How are all of the upgrades coming along?

Not a whole lot new on my car....but the summer is getting closer.

Stay tuned.

Stay tuned
 

Hi Gary, Everything is set and car is on the road. No dyno yet but car spins easily on second gear with 275 35 18 tires. Methanol keeps engine run smooth under boost.
I will be back with up to date performances pretty soon
Jacques

Hello Guys,

I tried my first run with a toulen/91 oct blend. Did it with a half gallon toulene with 8 gals. 91. Bout the same price ratio I spend for my race fuel mix.

Can't say I noticed any dramatic change and have no idea what oct. I wound up with but I pushed it pretty hard and the egt's were about the same, no detonation.

Still got to rig up a pressure relief for my H2o/meth injection set up and I'd love to figure out a safety shut down system that works with my super. ...Ideas?

Regards, PK

I've been hereing more and more about AEM. Be interested to see how it goes.

Jaques, How are you metering your meth?

Regards, PK