[jayvic]

I have a sohc vtec in my civic with a greddy td04 turbo NON intercooled. I have a fuel pressure regulator (now at 40 psi) aem cam gear, fields vtec and fuel controller. Last year I just ran 5.5 psi to be safe. I am putting a starion intercooler on it this year and want to know from others, How much difference does the intercooler make as far as power goes and how high should I run my pressure with stock internals, now that I have an intercooler. Any suggestions would be great.
Thanks in advance!
Jay

 

[h23zero]

with the intercooler 8-10psi. max on stock bottom.

 

[jayvic]

Thanks
That is what I thought. Does an intercooler make much difference in power, For example 6 psi non intercooled vs. 6psi intercooled??
I still have stock injectors and fuel pump so do you think that 8 or 9 psi would be reasonably safe?? Any idea what I should run my fuel pressure at??
Thanks foer the advice H23
Jay

 

[h23zero]

The intercooler doesn't make power. It cools the air before it gets to the engine. denser air make more power. As for how much fuel you have check out rceng.com. They have a fuel formula that you can follow. you can also find out expected HP rating with the stock injector and raised fuel psi. Do you have a fmu? What kind a turbo kit do you have?

 

[zcsohc]

You should get a larger fuel pump! A intercooler at 6psi prolly wouldn't make a heck of a lot of diiference cause your pressurised air wouldn't be that hot but at 8psi if would be a must or else detonation will set in. Out of interesr H23zero where did you get the 8 -10 psi max figure from, remembering its a sohc. I thought 8 psi was max. I mean on the drag or is it revhard website they recommend a max of 7 psi only at the track!
Who here actually knows someone or does themself boost more the 7psi on a standard sohc 1.6? how long has the engine last?I'm just trying to get the facts straight so we can boost performance safely .

 

[jayvic]

I know the intercooler doesn't make power, but thanks anyways. I upped my fuel pressure which should deliver some more fuel and also lenghtened the pulse width of my injectors. So I think I should get enough fuel but I am still going to put in a high flow fuel pump anyways. So what do you think 8 psi on a SOHC 1.6l.
if your getting enough fuel. I am still wondering though does an intercooler cool the air enough to make a noticeable difference in power???
Later
Jay

 

[zcsohc]

Yes intercooler will make noticeable difference in power for 1 your engine should still be working ie not blown up! 2 yeah the air will have more oxygen in it creating better combustion hence more power. I intend to run 8psi on my sohc but am still not sure if its dangerous, even when well tuned and intercooled.

 

[h23zero]

forgot it was a SOHC, my mistake. thought we talking about DOHCs. over 5psi i still say run the intercooler. Why, think it like this a, cold air intake VS engine bay intake. Which one would make more power?

 

[jayvic]

My problem is I don't have a dyno anywhere close to me so it's hard to tune it properly. I put 10k miles on it this last year with no problems(knock on wood).
Later

 

[thermalfi'd16]

ok jay check this out. it may not give you noticeable power at all on low boost. the intercooler, like h23 said creates a more dense air which is better for combustion. intercoolers are more effective on higher boost application. in some cases, a monster size IC will result a boost drop on low boost setting. the cooling stage of air on a turbo system is also the expansion stage. as the air pass thru the IC, it may or may not drop the pressure depending on boost setting and turbine to compressor design. a starion IC should NOT give you problems on boost drop tho......Mr.cLoWny is boosting at 7 psi without an IC...that crazy bastard

 

[jayvic]

How long has he been doing that for??? Thermal check your private message.

 

[thermalfi'd16]

at least 6 months now.......i'll check my PM now....

 

[Dr Drew]

I have an extra D16z6 in my shed that i'm gonna put back in while i'm rebuilding next month. If I can find a Manifold for it cheap i'll tell ya how much boost they take till they blow up

 

[jayvic]

LOL....Sounds like fun.