quad throttle bodies on an FE-DOHC... - Page 2

**FUjii13** · 9-30-05, 11:55

ITB's are only beneficial for an extremely modified engine

EDIT: although they ARE pretty sick looking.

this would look nice on the v6:

**Fastest95PGT** · 9-30-05, 13:00

That is pretty tasty.

vtec-this · 9-30-05, 14:27

maybe the guy is planning on spraying the motor in the future with a direct port system or something so he left some headroom with the injectors. Looks amazing.

vtec-this · 9-30-05, 14:28

maybe the guy is planning on spraying the motor in the future so he left some headroom with the injectors. Looks amazing

**Ryu_biggie** · 9-30-05, 15:23

Quote:

Originally Posted by FUjii13

is that for a 300zx? looks freakin sweet.

**FUjii13** · 9-30-05, 15:30

it's for an nsx.

ALTR EVO · 9-30-05, 20:38

Thanks for the comments guys.
The linkage came with the quads. I'm a big time turbo guy, so I'd love to turbo his Probe, but I think he's gonna stick with N/A.
The pics I posted are when we were doing the mock up, so we had rubber couplers until we made sure the fit was ok.
I'm not sure what future plans he has for the car, but I know its gonna be extremely fun!

Chris

**HotRodMex** · 9-30-05, 21:02

Quote:

Originally Posted by evo626

That sweet. Why 550cc injectors? Thats pretty hugh for not being boosted.
evo

Probably because of high RPM?

**fredio54** · 9-30-05, 21:17

still prefer the nitrous theory, injectors are still HP related, and i doubt hes making 400 out of it without nos or boost.

fred.

**Ryu_biggie** · 10-1-05, 0:28

the new k honda (i know you hate them) can be made to make about 320hp all motor. but thats in a race car with full backing on money. the newest super street if you think i'm making it up. so i'm guessing around 200ish on the low side but no more than 250ish. just because he has big injectors don't mean he needs them.

**fredio54** · 10-1-05, 2:36

yep, he could have 300 or more, but reliability would be a serious issue. the fact that he most likely doesnt need them is what fueled the discussion. either he wants nitrous, or boost, or theres a mistake in the post, or hes (likely) got a dirty rich idle. (or maybe psi is down to suit, but atomisation would suffer)

lets say hes making a specific torque of 200nm(optimisticish),
to achieve the 125kw(167hp) we need to be pulling peak torque at 6k
to achieve the 225kw(301hp) we need to be pulling peak torque at 10.7k
to achieve the 300kw(401hp) we need to be pulling peak torque at 14.3k

clearly not practical even with a LOT of cash laid down on bottom end parts.

realistically the most we could hope for is 167kw(223hp) by making 200nm at 8k.

still not easy to accomplish.

perhaps the man most likely to know (ALTR EVO) could fill us in on the choice of injectors?

fred.

ALTR EVO · 10-1-05, 9:39

I'm not sure on the choice of injectors. I'm pretty much there for moral support, and to help turn the wrenches. Unfortunately I have no clue when I'll be talking to him next, but when I do I'll try to remember to ask for you guys.

Chris

vtec-this · 10-1-05, 12:35

I am not sure what the limitations are of the FE3 cylinder head, but if it is as efficient as a hondas, then he could up the compression to 12:1 or higher to start making some serious numbers, but he would need race gas or a methenol kit to avoid detonation.

With 12:1 compression and a very efficient motor my guess would be that he could make: 14.7x 12 = 176.4 whp on race gas.I dont know too much about going for n/a power but 200HP seems realistic on stock everything + raised compression.

**kiwi626** · 10-1-05, 16:45

i've seen a fully worked NA fe3 in a race car. had just about custom everything.had itb's, 12:1 comp, very aggressive cams (it was undrivable under 6000rpm), it was reving to 9000rpm, etc etc and was running on race gas obviously. the owner told me that it was making about 230bhp and a tonne of torque. its the torque thats important......

**fredio54** · 10-1-05, 19:07

190nm (realistic for 2l old design) at 8500rpm (reving to 9k, but not pulling perfectly to that), gives 169 kw = 226hp, so yeah that sounds realistic. you just cant argue with maths :-)

its very hard to get more than similar to stock specific torque, all you can reasonably hope to do is shift the rpm at which peak torque occurs.

fred.