Hey guys just dynoed my car.FJ20 just with forgies the rest of the engine is internally standared.Custom exhaust manifold and turbo,injectors,computer, pump etc etc.On 25psi made 300rwkw with a fat as mixture.

Does "fat as mixture" mean a fully sick awesome mixture or do you mean with a safe, rich mixture?

Sounds like a good result in anyones book!

What do you call "safe" rich mixture , I call 10:1 filty rich and 12-12.5:1 good . A "rich " mixture is no safer than the correct mixture , lean mixtures do the damage . Actually very rich mixtures promote detonation .

mixture was around 10.5.

Post the dyno sheet.

10.5 is a bit rich for 25 psi. You dont need to go that low though many tuners do. Its costing you a bit of power. Aim for 11-11.5.

So yeah rich. Whos the tuner?

400rwhp....is it good? Dam straight. What fuel?

fuel was c16 and i am tuning the car myself

300kw is great but with what turbo... if its a fairly small turbo.. thats awesome, if its a big lung you got hangin off the side, there should be plenty more in it. lean it out to 11 - 11.5 as frog has said, and what ignition timing are you running? should be able to run 16-20 degress.

Gareth

25lbs is LOT of boost for 400Hp , you can get the same for less on pump fuel with the right bits .

what power have you made with "THE RIGHT BITS" on a FJ20 with no internall work but the forgies.

I didn't have to because I watched others do it . You would be surprised what a good used internally std FJ20ET can crank out . The tune has to be perfect and the fueling/ECU/intercooling/everything downstream of the exhaust ports made to suit but its not rocket science so don't think your Neil Armstrong .
200 Hp per litre is easy from a big bore short stroke engine with a DOHC 16 valve head that actually works . The fact that these things are very robust and have reasonably aggressive for production camshafts makes it a straightforward process .

Provided the inlet system can pass/pump/intercool without loss 42-44Lbs air its no sewat . A half reasonable 1.5" bore steam pipe manifold and a turbo capable of passing and using 26 odd Lbs exhaust flow and bobs your uncle .

You need to understand that high boost does not necessarily mean high airflow . Boost pressure is actually a measure of resistanceto airflow into the engine nothing more . If the restrictions in the system are removed the flow goes up and the pressure down - simple physics .

Allen Engineering in Mallala (SA) did similar sort of Hp about 12 yrs ago with a HKS exhaust manifold and a TO4B turbo . From memory ignition was a MSD 6a , ecu an Autronic SMC and injectors I think Rochesters . A friend of mine did it 7 yrs ago with a steam pipe manifold and his own hybrid bush bearing turbo .

If you can get similar inlet and exhaust manifold pressure in your engine with the 42 odd Lbs airflow and effective support systems its a walk in the park . Now that 100 octane pump fuel is available its easier now than its ever been .

I too am interested to know what turbo and support systems you have to warrant that boost level . Less boost means less fuel rail pressure and more advance because a higher detonation threshold allows more efficient combustion .

Cheers .

so how much power have you actually made?

The most power I've had is 4020 (3000Kw) from a GE 7FDL V16 turbo diesel , to self load test these things you don't need a dyno . Four of them in a row work even better .

well, it looks like YOUR Neil Armstrong!!

Nope , the yanks have had them for ages , Neil as well .

Mate,to me it sounds like your a profesor,what have you built or are just one of those guys that reads to many books?

No not really , my last of 2 FJET's was a torque monster more that a Kw mountain because thats what works in a road car .

The next will be an RB26 headed RB31 with the torque treatment because its also for road . If you know how you can have heaps of torque and good consumption .

The following will be a Daihatsu HDEG De Tomasso 1600 again for road .

I don't build semi race engines for road use because they are expensive and impracticle . If you use all the power you end up dead or in goal , if you don't seriously race it on a circuit or strip what was the point of the exercise .