Anyone have a Raby rebuild yet?

[Jake Raby]

The differences in "Real Estate" between the 25 and 3.2 heads and block vary greatly. The absolute largest we can take a 2.5 bore wise is 89mm (from 85.5mm stock), the 93mm bore of the 3.2 is way too large.. The way the valves are positioned puts them right at the edge of the bore, increasing complexity.

Basically the 3.2 is a small bore 3.4, thats one reason why the 3.2 doesn't see cylinder failures nearly as catastrophic as the 3.4, or any of the earlier 2.5 and 2.7 engines.

[70Sixter]

I just re-read this whole thread. Jake gave some background on his experience in an early, rather long post answering several questions. And his various websites.

I'd like to reinforce the fact that he is Famous in the 914/Type IV world. The gold standard, the Raby name carries tremendous weight for bragging rights for owners with one of his engines.

I'll bet the -4 community is scared silly that the M96 venture will decrease 4-cylinder work. I for one am relieved to know that a rebuild program is feasible and that Jake Raby is involved.

No affiliation, I just spend a lot of time in the 914 kingdom.

[Jake Raby]

Originally Posted by 70Sixter

I just re-read this whole thread. Jake gave some background on his experience in an early, rather long post answering several questions. And his various websites.

I'd like to reinforce the fact that he is Famous in the 914/Type IV world. The gold standard, the Raby name carries tremendous weight for bragging rights for owners with one of his engines.

I'll bet the -4 community is scared silly that the M96 venture will decrease 4-cylinder work. I for one am relieved to know that a rebuild program is feasible and that Jake Raby is involved.

No affiliation, I just spend a lot of time in the 914 kingdom.

Thanks for the post, 70sixster...

The M96 development is just an extension to our facility and engine development. We haven't changed gears away from aircooled engine development, we have "added a gear" with the M96 program.

My aircooled efforts will not slow, my master plan was to do enough development in 2006 and 2007 to be applied through 2009 while I personally stepped away from the lab and got as far as possible with the M96 plan.

Through 2009 my team will be applying what we created for the past two years.. The M96 is just another challenge with a much newer engine design with another set of very difficult tasks to overcome. Thats what attracted me to this engine- it's problems.

[grantsfo]

So Jake like in 914 world looks like youre in for some competition from V8 conversion. I'm looking at both big bore six and V8 for my Boxster

Will see which works out best. I will give you a call tomorrow.

[silver arrow]

Originally Posted by grantsfo

So Jake like in 914 world looks like youre in for some competition from V8 conversion. I'm looking at both big bore six and V8 for my Boxster

Will see which works out best. I will give you a call tomorrow.

What a great way to remove the enjoyment right out of the car. The Boxster is such a great little car. Sounds great, feels great, very well balanced. If I want to go fast I'll drive my modded STI. It's a brute, faster, handles better, but isn't anywhere near as fun as a little 217hp roadster. It's easy to make a car fast, but keeping the character of the car is very important. That's just my opinion. I don't think Jake's business will be competing with V8 conversions, because there will always be people that think it ruins the car.

[mts]

Originally Posted by silver arrow

What a great way to remove the enjoyment right out of the car. The Boxster is such a great little car. Sounds great, feels great, very well balanced. If I want to go fast I'll drive my modded STI. It's a brute, faster, handles better, but isn't anywhere near as fun as a little 217hp roadster. It's easy to make a car fast, but keeping the character of the car is very important. That's just my opinion. I don't think Jake's business will be competing with V8 conversions, because there will always be people that think it ruins the car.

I disagree that it ruins the car. Apparantly Porsche does too since the new Boxster S is over 300hp now. Besides, making the engines stronger/more sturdy is a main focus of Flat 6, the possibilty of more power is just an optional by-product.

[silver arrow]

Originally Posted by mts

I disagree that it ruins the car. Apparantly Porsche does too since the new Boxster S is over 300hp now. Besides, making the engines stronger/more sturdy is a main focus of Flat 6, the possibilty of more power is just an optional by-product.

I am all for Flat6 and Jakes products. I was saying I'm not a fan of the LSx engine swap into a Boxster.

[grantsfo]

[QUOTE=silver arrow]What a great way to remove the enjoyment right out of the car. The Boxster is such a great little car. Sounds great, feels great, very well balanced. If I want to go fast I'll drive my modded STI. It's a brute, faster, handles better, but isn't anywhere near as fun as a little 217hp roadster. It's easy to make a car fast, but keeping the character of the car is very important. That's just my opinion. QUOTE]

You havent been in my car. It screams for some character definition from a V8 or a big Raby 6 (Jake you dont know what pleasure I get from saying that). See I had to go to 6 verses 8 to keep up with you. Wimpy little sixes are cute and nice for grocery getters. I want something that makes me scream like a little girl when I exit a turn at high speed and hit the throttle. AWD Sti is too sedate and easy to control under 500 HP for my tastes. I have a 300 HP AWD sport sedan and they just dont do anything for me. 986 Boxster will turn into a challenge once your getting into 375 to 400 HP range. ..I like driving challenging cars.

[MikenOH]

Did you get Phil's issues get sorted out yet?

[Jake Raby]

The main idea behind what we are doing is to utilize what functions best and is most efficient. I do not care about sounds at all, with this kind of additional performance all sound does is attract the Cops.

The engine below required intake enhancements and an ECU flash and our own version of an aftermarket exhaust. I do not want to state more because the company who's exhaust this is was absolutely unwilling to listen to any constructive criticism of their component and how we developed it better than they did. Because of this they will receive zero kudos from me.

The car this engine went ointo already had an aftermarket intake, but it did not need it to create this power, in fact I prefer the stock intake and on the stage I engine I even prefer the stock modified myuffler with a good set of FSI headers and more perfromance oriented cats. This stage II engine uses the same headers, cats and a modified aftermarket muffler.

Matter of factly I am working on the stage 1 combination so it makes it's power with ALL STOCK induction and exhaust and does not require any ECU mods at all as most people I find are spending way too much money on bling and zing thats actually decreasing the actual performance of the engine, or is offering 2HP for a 2,000.00 investment.

Jake,

Thanks for the info. The area under the curve on the torque piece is what I was missing. For the stage II, you've got a 70+ whp peak difference and a 50+ torque peak difference in addition to a much fuller area under the curve which is in the range (actually slightly higher) than what I was thinking.

And the graphs don't do it justice! It drives as easy as stock egst 28-30 MPG, runs cool and you'd never know its built if you heard it idle.. Its smooth as silk at 650 RPM.

Do you have a before/after on a stage I?

Thanks for all your efforts with this.

Mike

Yes, but not yet on the "new" current offering that I am positive will be better than the previous generation... I'll refrain from posting one until the new version is fully understood and has seen service on the street.

Any engine I build today is totally out of date in less than 6 months.. Thats how fast we are developing and learning.

[Adam]

Jake, what's a ballpark price on a stage 2 3.2>3.6 conversion and how does it differ from the stage 1 conversion besides the ecu tune? Do you plan on taking it even further with a stage 3 upgrade?

[mts]

Originally Posted by Jake Raby

And the graphs don't do it justice! It drives as easy as stock egst 28-30 MPG, runs cool and you'd never know its built if you heard it idle.. Its smooth as silk at 650 RPM.

Any engine I build today is totally out of date in less than 6 months.. Thats how fast we are developing and learning.

All great news! I appreciate you keeping us updated on progress!!

Mike