930 turbo: 476lbft (648Nm) & 500bhp

[ninemeister]

Occasionally in this life something comes along out of the blue that shocks you in a very pleasant way. Now in the game I play of tuning Porsche's this is not very often, indeed the norm is that expectations of performance are shattered on a daily basis, but today has not been another one of these days. To set the scene, a new customer just happened to talk to me a few months ago about modifying his standard 930, so we hatched a plan involving the usual suspects, namely: 1. Top end rebuild 2. 964 Cams 3. 9m ported heads/injector blocks/inlet manifold 4. 9m Racing headers 5. K27 Turbocharger 6. 1.0 bar boost (spring or controller) 7. Intercooler Such was JL's trust in us, when I mentioned that we were designing a new ballrace hybrid "quick spool" turbo and asked "would he like to try it instead of the normal K27?" he jumped at the chance. Wind forward 4 weeks and the job was done, minor problems with the turbo installation resolved. So, after three abortive dyno runs due to wheelspin, I loaded Rob & Marc into the back seats, applied traction compound to the tyres and went for it. The result was positively shocking; I expected to see more than the usual 400bhp but what came out of the dyno screen was amazing: 400lbft at 3000rpm 476lbft at 4760rpm 500bhp flywheel (uncorrected) at 6000rpm 440bhp at the wheels at 5750rpm all on no more than 14.5psi of boost & stock ignition timing. I'll come back with more later, in the meantime I am going to check the running mixture as we will probably have to back it off a little so that the stock fuel system can run it safely. All we need now is a chassis that will handle all that spoot.

[Dakkon]

Impressive

When is your site back up? as im looking for a full SS exhaust for my '85 3.2

[Porschetastic]

Colin,

Very impressive!!

Which turbocharger have you used on my 993?

David

[shadowninja]

Should be a laugh in the wet

[timc930]

ninemeister said:

Occasionally in this life something comes along out of the blue that shocks you in a very pleasant way. Now in the game I play of tuning Porsche's this is not very often, indeed the norm is that expectations of performance are shattered on a daily basis, but today has not been another one of these days. To set the scene, a new customer just happened to talk to me a few months ago about modifying his standard 930, so we hatched a plan involving the usual suspects, namely: 1. Top end rebuild 2. 964 Cams 3. 9m ported heads/injector blocks/inlet manifold 4. 9m Racing headers 5. K27 Turbocharger 6. 1.0 bar boost (spring or controller) 7. Intercooler Such was JL's trust in us, when I mentioned that we were designing a new ballrace hybrid "quick spool" turbo and asked "would he like to try it instead of the normal K27?" he jumped at the chance. Wind forward 4 weeks and the job was done, minor problems with the turbo installation resolved. So, after three abortive dyno runs due to wheelspin, I loaded Rob & Marc into the back seats, applied traction compound to the tyres and went for it. The result was positively shocking; I expected to see more than the usual 400bhp but what came out of the dyno screen was amazing: 400lbft at 3000rpm 476lbft at 4760rpm 500bhp flywheel (uncorrected) at 6000rpm 440bhp at the wheels at 5750rpm all on no more than 14.5psi of boost & stock ignition timing. I'll come back with more later, in the meantime I am going to check the running mixture as we will probably have to back it off a little so that the stock fuel system can run it safely. All we need now is a chassis that will handle all that spoot.

Wouldn't mind some of that!

Colin - what about suspension set-up/tyres etc

Cheers

[VIC COHEN]

Out of the blue Colin ?.............subconciously your thinking of Audi RS Blue............and only Burzel in the back , no room for 2!