New Project 700WHP???

[audspeed]

Hi guys
After got all the parts togueter will post our next project
ENgine Donor: 1991 2.3l Audi coupe with 90K miles
Head Work: Done by Jose Rodger (www.vwportingtuning.com)
ported, polished, angle job, 1mm bigger SS valves (Intake/Exhaust), titanium retainers, Solid lifters, 7A intake/Exhaust cams, machined to fit water manifold
Short Block:Carrillo Rods, 83mm Wiseco (8.5:1) forged pistons, Stock cranck, Rs2 head gaskets and rod bearings
Drivetrain: lightned 7A flywheel, Stage 4 Specs clutch, S4 6 speed tranny (2001 b5), 4000K driveshaft, V8 rear diff,
Fuel/Ignition system: 90LBS Bosch High Impendance injectors, 2 WAlbro Fuel pump, DTA Pro 8 Stand Alone (www.tpgproducts.com / www.dtafast.com[/url])
Suspenstion:KW full adjustable coilovers
Brakes: front - 993TT big reds in front w/ S8 rotors and custom rats/adpters Rear - 996 4 pistons claipers w/ new bettle front rotors custom rats and calipers
Force induction: Audspeed custom tubular headers with 44mm Tial wg and MTM intake manifold ported and polished to match to the head work
Turbo: custom made GT35/70R. This is an Gt35/40R garrett unit that has been upgrade with T70 compressor wheel, machined the compressor housing. All done by INNOVATIVE turbos in California. the turbo should make 750Whp
Wheels tires:AZEV wheels 17X9 F with 234/40/17 tires and 17X10 R with 265/35/17 michellin tires
Please any advice that i might forget in this project will be more than WELCOME

[~Delta]

Are you using the 2,309cc (7A) block? I ask because the bore is 82,5mm as opposed to the 2,226cc (3B / ABY / AAN) blocks 81,mm bore. The RS2 head gasket will therefore not seal properly.

[aronmatic2]

I think you have to think on something different camshaft like 7a.
7a is a cheap upgrade for stock 3b engine, not for a monster like this.
bigger throtle is better gas reaction.

good luck

[caterpillar]

camshaft:www.catcams.be

[caterpillar]

i think "jonus" use the 280 deg and 11,5mm valvelift
someone asked "hacke racing" what cams he be using.large turbo ,gives extrem cams i think

[olsonjus]

The cams will be fine to start out with. Javad over at 034efi.com is making 600awhp on a mustang dyno, which is closer to 650awhp on a dynojet.

The spec stage 4 clutch wont hold at those power levels. www.034efi.com has a special spec clutch that will work.

That is a strange turbo combo you are running. I've never seen the gt35r turbine wheel paired to 70mm inducer compressor wheel. From what I've heard the gt35r turbine wheel flows as much as the older P trim, so it may work fairly well. I doubt you are really going to be able to use all of the compressor wheels flow capability. That compressor size is good for 800whp, but you aren't going to get near that pairing it with the gt35r turbine wheel. Maybe 680whp tops.

I'm having my GT4088R retrofitted with a GT42R compressor wheel which is 70.3mm inducer and 94mm exducer. I feel this is a much better match then the smaller gt35r wheel turbine wheel to a compressor of that size.

What you might want to look into doing is have innovative use a slightly smaller compressor wheel with the gt35r turbine side. It has been shown that the smaller T67 compressor wheel is a very good match to the gt35r. You may be saying to yourself that the t67 and t70 aren't that far apart, but the real difference is in exducer diameters.

T67:
Inducer: 67mm
Exducer: 84mm

T70:
Inducer: 70mm
Exducer: 94mm <----------- This is the BIG difference between the two.

The moment of inertia of the t67 is much less because of its significantly smaller exducer diameter. This means that it will spool much nicer then the t70.

The cool thing is that the T67 compressor wheel has been shown to be good for 750whp, so it will more then make the power your looking for. Paired with the GT35R turbine wheel and you will have a combo that will get damn near your 700whp goal. The only thing holding you back is the turbine wheel.

Best of luck on your project.

Regards,
Justin

[Billman]

your car

@olsonjus

Hi, can i ask you something? What block - crank are you using? How long are your conrods?

Many Greetings

[auditude]

Head Work: Done by Jose Rodger (www.vwportingtuning.com)
ported, polished, angle job, 1mm bigger SS valves (Intake/Exhaust), titanium retainers, Solid lifters, 7A intake/Exhaust cams, machined to fit water manifold

Hi Rubens, did Jose also modify the 7A head to fit the water manifold? If not, who can do this in the States?

Thanks,

Ken

[audspeed]

yes the turbo option I agree that t67 will works better than T70. i will see how to do that now as I have all in hands.......
Yes the 7A head is ported, polished and machined to fit the water manifold, A lot od labor involves and I expend 1500 already just in parts for the head work. that job will be 3K easily.
The clutch is Specs from JAVAD (034EFI) should hold 700hp, I hope......
About the cams I will start with 7A if not happy i go with CAT cams.
Head gasket will have to have a custom cooper one made. as the Rs2 will not seal propery. What about the stock 7A gasket? Any idea?
Anybody know id the S2 axles will hold that much? maybe RS2 ones?

[Mihnea]

I don't think you'll ever have 700 HP at the wheels on any european dyno... american ones, maybe....

[audspeed]

Block is 7A and conrods are 144mm from Carrillo's

[audspeed]

TO MIHEA
what the difference on American and European dynos?
As i know the fastests cars in the world is in the USA, or Am i wrong?

[olsonjus]

What brand dynos do they have in europe Mihnea?

[Mihnea]

Justin and Rubens, I'll only trust a MAHA brake dyno and nothing else. I have used many many many different dynos from different manufacturers and so far only a MAHA gives accurate readings. Sorry but when a bone stock AAN S4 puts out 215 WHP on a Mustang and the car is absolutely bone stock and there's nothing done to it, then there is something wrong there.

Not meaning to offend you Rubens, but I don't think that if you put your car on an European dyno you'd have as much as some american dynos read.

Mihnea

[olsonjus]

The local AWD mustang dyno that I've used many times shows 150-160whp for a stock s4 2.7tt. Would you say this is a reasonable measurement???


Justin