Boxster weights

[Brad Roberts]

If he doesn't.. my flight from LA would be cheaper. I also have full access to a shop in Mountain View with tools/lift and wholesale parts delivery 6 times a day..


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[BTEMY]

Originally Posted by Brad Roberts

If he doesn't.. my flight from LA would be cheaper. I also have full access to a shop in Mountain View with tools/lift and wholesale parts delivery 6 times a day..


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You got PM

[Brad Roberts]

what does it lay down to the rear wheels?

where did you find 1 5/8 headers? (cool)

[insite]

the headers were dumb luck. i can't even remember who i bought them from. as for power? unknown, but at 4:55 in this video, you can guage output by comparing me to a 2008 Carrera S down the back straight at road atlanta. he pulls me, but not by much.

FYI, my car is a no-option '99 with about 250lb stripped out of it.

[Brad Roberts]

Tough tell by the video, I don't have a reference point for corner entry/exit speeds

You need to dyno the car.. and have them run the O2 sniffer on it when they do it. I'm up to about 10 cars now (97-99) that have fuel pumps that cannot supply the fuel volume necessary to safely run the larger engines.

I promise (on my moms grave..lol) that you are leaving power on the table. A lot. You did the right thing with the larger intake tubes ans such, but the headers are still too small and a real tuners (there are only about 4 in the USA) need to be visited. Stay away from the "generic" tunes sold out there. The car needs to be dyno'd, logged and tuned!


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[insite]

any of these 'real' tuners happen to reside in georgia? :-)

BTW, the fuel pump in the '99 box is the same as the one in the '99 996. do you really mean to tell me that the pump in the early 996 didn't produce enough volume to support the OEM engine? surprising. what do you replace it with? the one from the 3.6L cars? direct fit?

thx for all the input.

[Brad Roberts]

No. The pumps are wearing out. Not failing 100% but cannot supply the volume at high RPM. Have you performed the Porsche volume test on your pump? Most people don't know about it and don't have a PSTII or PIWIS to test their volume.

None in Georgia. The closest guy to you is in Arkansas. He is the man behind the curtains on the Softronic stuff.

Dyno it on a GOOD dyno.. (Dynapack/Mustang/etc) something where they can load it and gather high quality 02 readings. The Dyno Jet pulls are good, but lack high quality 02 readings that someone from afar can use to tune properly.

The reason there are so little people? the software to interface is expensive.. I use a tuner locally that does damn near all the Porsches running pro in Grand Am. He travels, but he is not cheap. After 8hrs on the dyno one day, we managed 328 to the wheels with a 3.4. I believe there is more, but we ran out of money before we ran out time! lol

[insite]

wow; that's big power. is that on race fuel?

correct me if i'm wrong, but it SOUNDS like you're saying i can dyno it here w/ data logging and have someone in a different state modify my program?

[blue2000s]

Originally Posted by insite

wow; that's big power. is that on race fuel?

correct me if i'm wrong, but it SOUNDS like you're saying i can dyno it here w/ data logging and have someone in a different state modify my program?

It'll take forever to optimize it that way with all the back and forth of programs and trips to the dyno.

[insite]

Originally Posted by blue2000s

It'll take forever to optimize it that way with all the back and forth of programs and trips to the dyno.

that's what i figured. w/ our forumula SAE setup in the mid 90's, we used an engine dyno room for HOURS to get a program dialed in. didn't know if there was some new tech that sped up the process.....

[Brad Roberts]

Correct on the dyno run locally, ship computer to tuner. It sounds like you did a nice job. 99% of the conversions that end up on my doorstep are poorly executed and the customer ends up disappointed

I can fix that

I'll be test fitting a new airbox that uses a stock Porsche filter next week (in a 986) I know it supports 300hp stock.. and it appears to bolt in


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[Brad Roberts]

It'll take forever to optimize it that way with all the back and forth of programs and trips to the dyno.

One trip to a GOOD dyno (4 passes max) and a good tuner will see everything he needs to know. I recently was informed of another person local to me who popped for the 8k software. he is making good power with a "generic flash" for the 3.4 computers. Price was good also!

The tuner just needs good 02 readings!


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[blue2000s]

Originally Posted by Brad Roberts

One trip to a GOOD dyno (4 passes max) and a good tuner will see everything he needs to know. I recently was informed of another person local to me who popped for the 8k software. he is making good power with a "generic flash" for the 3.4 computers. Price was good also!

The tuner just needs good 02 readings!


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It's an iterative process. No tuner gets it right on the first run. Plus, that's only WOT, there are hours and hours of driveability tuning in addition to multiple dyno runs.

[Brad Roberts]

Depends on the dyno, dyno operator and tuner. The good tuners will have maps that they start from.

We did a CaymanS.. we started with the more aggressive 3.6 STOCK tune. Pushed it to the car and then detuned the fuel as needed. Drives like no other CaymanS we have driven. Cam Timing was spot on. Took us 6 pulls total. Rolled it out onto the street and roasted the tires.

We are not tuning a fresh Motec/AEM/Bosch brain here (which can takes days) Porsche didn't leave 100hp on the table for all the engines!


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[blue2000s]

Originally Posted by Brad Roberts

Depends on the dyno, dyno operator and tuner. The good tuners will have maps that they start from.

We did a CaymanS.. we started with the more aggressive 3.6 STOCK tune. Pushed it to the car and then detuned the fuel as needed. Drives like no other CaymanS we have driven. Cam Timing was spot on. Took us 6 pulls total. Rolled it out onto the street and roasted the tires.

We are not tuning a fresh Motec/AEM/Bosch brain here (which can takes days) Porsche didn't leave 100hp on the table for all the engines!


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6 runs though, trying to do it remotely would take a long time.

[Brad Roberts]

6 pulls because he didn't have a base "hot rod" tune for the CaymanS engine. He does now

I hear you, but a LOT of "tuners" do it this way.. a LOT.

GIAC
AWE
Softronic
just to name a few..

You buy their hardware and you down load generic tunes based on the mods you list. Want something custom.. they modify a tune they already have and email it to you. Push it to the car.. do a pull.. make change push it again.. make change push it again

Find someone who can download the stock tune from the car, make the changes and push it back without having to email back and forth with the "real tuner"

Those guy's are rare, but when you find them, they have really good base tunes for most of the stock displacement/stock cam'd engines, so 4 pulls and a good 02 reading is not far fetched. The guy I use pulls from a large database out of Italy. Sometimes we try a tune that is already modified, then modify it to work with our car.

There are really good Porsche tuners out there, but they are not typically on the web and they are not typically easy to get a hold of (they are busy)


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[insite]

anyone know what the ebrake system weights? lever, shoes, springs, cams & cables?

[jaykay]

Ah the beige foam like the monster slab inside the cabin?? They put that down the sides of the engine bay as well?

Yeah that stuff could stop a bullet!

[insite]

Originally Posted by jaykay

Ah the beige foam like the monster slab inside the cabin?? They put that down the sides of the engine bay as well?

Yeah that stuff could stop a bullet!

yes! it's actually over 8" thick in some spots. once you pull it out, you can clearly see the air intake / exit ducts that go to the inlets on the sides of the car.

without it, it's louder, but really isn't that bad IMO. still passes the wife test; admittedly my wife has a pretty high tolerance for NVH though....

[blue2000s]

Originally Posted by insite

yes! it's actually over 8" thick in some spots. once you pull it out, you can clearly see the air intake / exit ducts that go to the inlets on the sides of the car.

without it, it's louder, but really isn't that bad IMO. still passes the wife test; admittedly my wife has a pretty high tolerance for NVH though....

How is it held in? Can you put it back in later?