Nitrous to spool turbo?? Anyone have some input?

[DrifterProdigy85]

T3/T67 has done 700whp on Hondas, Evos, and DSMs. Supras have done it with the T4 housings. Ive only done a 93 octane tune for 20psi and did 502whp. Its well within the compressor map to do 700. Im making the switch over to a Billet 67 which is good to 900hp in T3 .82. I want a guaranteed 700+whp. Your not gonna sell me on a Holset turbo. They havnt shown me proven numbers like an old school Ball Bearing 67 or the new Billet 67 has.

[DrifterProdigy85]

And im talking about real power backed up by Trap Speeds. Billet 67 on an Evo dynoed 920whp and backed it up with a 167mph trap speed. Supra dynoed 850whp on a Billet 67 and did 140-145mph. Evo, DSM, Hondas dynoing 700whp backing up there numbers with 145+mph. My 502whp number was backed up with a 130mph trap speed.

[eh?]

Wow I wasn't aware there were 800whp t3 frame turbos out there. That billet 67 is crazy.

[robbie2883]

I have a T04Z that is laggy, but I'm steering clear of nitrous. I'd opt for the rushracing two-step which is not an anti-lag Hans. hahaha It randomly misfires the coils.

the rush racing launch control actually IS an antilag system, it messes with timing to move the spark front into the exhaust manifold and help the turbo build boost. still great fun though! LOL

[DrifterProdigy85]

Search AWD Motorsports EVO on Youtube. They use the Billet 6765 T3 .82. Did 920whp @ 40psi i think.

[Cjmartz2k]

Its well within the compressor map to do 700.

Exactly my point. The compressor MAP isn't what hp turbo can make, it's what the compressor can flow. You aren't going to make anywhere near 700rwhp with a dinky little T3 housing unless your running 40+psi and race gas. If you want to talk about small housings, race gas or water/meth, and 40+psi, the DSM guys are trapping mid 130mph in the 1/4 at full weight with the HX35, and that compressor map is about 9 lb/min less than mine. The DSM guys have also run a T3 .70 a/r HX40 at 650+rwhp, but it was at something like high 30's psi. I don't think it does a whole lot of good to quote hp figures for stupid high boost when most people on here are running street/strip cars on pump gas seeing no more than 2 bar of boost.

I have no doubt a Supra could produce those kind of numbers with a T4 housing. It's probably got a much larger a/r and better matched to the flow of the compressor.

And that billet turbo that dyno'd at 920whp was running 46psi when he did it. That's 3.2 bar of boost.

Also, your 502rwhp, was that 20psi or 24psi? I'm not dogging your turbo, or saying holsets are better. I would love to have your compressor. It's bigger than mine and a real performer. I'm happy with my choice considering my comparatively faster spool times and the fact that it cost me $300.
Modified by Cjmartz2k at 4:41 PM 7/16/2009

[DrifterProdigy85]

I spiked 24psi but held 20psi steady after that. I dont go off the Evo numbers so much since there so far out there. But 2 Supras have done mid 800whp with a .81 T4 Housing and a RB26 has done 750+whp @ 30+psi with a choked up .6x housing. Isnt the turbine housing more or less chosen by how much exhaust an engine puts out? Like a supras flows more exhaust so it will need a larger housing to keep the backpressure down.

[Darius]

This thread is getting way off topic. The Rush-racing is not a true anti-lag or you'd be leaving the line at near full boost. It is more of a hybrid between a two-step and an anti-lag because it is a random misfire vs a second and lower rev limit. It is a way better system than the Gizzmo, but it does not directly retard the timing seen by the ECU. There are 3 wires to it: power, ground, and a splice into the 1* signal wire. So, the module is randomly grounding the 1* signal wire and the ECU compensates for the miss the best it can.

From Jason Rush: "It causes the spark plugs not to fire, randomly, but this decision is made by the ecu after the fuel is already delivered.

Jason"

What would be REALLY cool is if someone did a true anti-lag system of the type with a bypass valve from the compressor outlet to the exhaust manifold like rally cars have! It is a lot easier on components, but you have to add an electrically actuated control valve and controls for it.
Modified by Darius at 9:27 AM 7/16/2009

[DrifterProdigy85]

Heres a neat little calculator for nitrous.

http://www.coldfusionnitrous.com/calculator.aspx

Ive got a good question. Using Nitrous with e85. Would you need larger fuel jets with a wet shot? How much nitrous can you spray without having to retard timing?