What should I do about Fuel?

**Ronnie01** · 11-27-07, 8:16

Hey guys I am getting a 16G turbo my F2t and I am trying to reach 300HP. I am looking at a fuel setup but Im not real sure what I need to go with. Should I go with a 190 or 250 fuel pump? What Fuel Pressure Regulator? What size injectors? Is there anything else I would need? Thanks

**zlyricist** · 11-27-07, 11:52

you need atleast 460cc's to make 300hp. i made 298whp on rx7 460s

you can use a fpr, and fmu setup to control fuel. at 300hp you will need to control timing, or use race gas. 190 walbro will work just fine

defiler · 11-27-07, 12:49

You sure 300whp is acheivable with a 16g?

**DarkMx-6** · 11-27-07, 12:59

sorry guys for my ignorance but isn't a fpr (fuel pressure regulator) and (fmu Fuel management unit) the same thing? Whats the difference? They both sit on the return fuel line to up the fuel pressure right?

defiler · 11-27-07, 13:10

Nope. Different items. An FMU increases fuel pressure per the amount of boost you run. An AFPR just increases/decreases base fuel pressure.

So you need an AFPR to adjust the base pressure for the bigger injectors, then the FMU to control the extra fuel under boost.

**DarkMx-6** · 11-27-07, 13:54

so then does it matter which one comes first on the return line? i would imagine it would be fuel pump - engine - fmu - fpr

**zlyricist** · 11-27-07, 15:18

Quote:

Originally Posted by defiler

You sure 300whp is acheivable with a 16g?

i think funhouse got about 280whp w his. thats probably the max though

**ademan** · 11-27-07, 17:41

Quote:

Originally Posted by defiler

You sure 300whp is acheivable with a 16g?

more than hundred people already dyno over 340-360whp on evo3 16g, even big 16g will suppot 300whp

defiler · 11-28-07, 1:06

Quote:

moe that hunded people aleady dyno over 340-360whp on evo3 16g

Yeah, on DOHC 16v DSM motors

. Not SOHC 12v stump-pullers.

Theres a huge difference between a F2t and a 4g63.

Also, IIRc there's 2 models of the 16g (Big 16 and regular). I suppose the power outputs differ between the 2.

**Ronnie01** · 11-28-07, 7:39

Its a big 16g and it'll have no problem gettin 300hp, there are a ton of dsm guys hittin well over 300hp on one so doing it on a f2t should be no problem either.

**zlyricist** · 11-28-07, 11:58

Quote:

Originally Posted by Ronnie01

Its a big 16g and it'll have no problem gettin 300hp, there are a ton of dsm guys hittin well over 300hp on one so doing it on a f2t should be no problem either.

yes, but a dsm is dohc and the head flows much more than a f2t