I kno its possible to run a vtec with a turbo at low psi... but at 20 psi.... a built bottom end... would the vtec still be overkill on the engine due to boost spike?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20psib18b1 &raquo;</TD></TR><TR><TD CLASS="quote">I kno its possible to run a vtec with a turbo at low psi... but at 20 psi.... a built bottom end... would the vtec still be overkill on the engine due to boost spike? </TD></TR></TABLE>

I have VTEC, and I have a turbo. I don't think it is overkill, that is why there are custom cams meant especially for turbo VTEC engines.

BTW, you said you are going to be running 20psi? I hope you have an idea of what you are getting yourself into.

 

wat would that be?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20psib18b1 &raquo;</TD></TR><TR><TD CLASS="quote">wat would that be?</TD></TR></TABLE>

Alot of headaches.


I have a 2.26L B-series and I'm making right around 620whp on 21psi and let me tell you, there are a whole lot of stupid things that go wrong when you start getting to this point in hp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20psib18b1 &raquo;</TD></TR><TR><TD CLASS="quote">wat would that be?</TD></TR></TABLE>

Lots of money, long hours, and knowing what parts will work and won't. I was going to boost 15-18 pound on a FULLY built SOHC. 20 psi is A LOT of boost.

 

well i was lookin at 18 psi... really im between 15-20, and since your running at 21 psi n u kno the problems y dnt u tell me a couple...

 

What are your hp goals b/c many times "x-amount of hp" can be obtain at a lower psi. Or maybe 21 is just your luck number?

 

probably between 425-475

 

kool have you decided on a turbo, and what fuel management you plan on using? its all about the tune

 

that aint gonna be ne time soon but prolly a t78 and fuel... Apexi s-afc 1

 

T78 BIG BOY TURBO, the safc,you might wanna rethink that part, b/c the safc will not be able to control things such as spark.

 

Is this your daily driver? Most people don't run nearly that much boost on daily driven cars, because like others said, there are always things that you have to worry about. Do you realize how much power 21 pounds of boost will put down??? I'm only running 7psi with an SC61 on my B16 and have traction issues, think about what your daily driven car on street tires would be like.

 

topsecretEg6 what fuel management are you running with your setup?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20psib18b1 &raquo;</TD></TR><TR><TD CLASS="quote">that aint gonna be ne time soon but prolly a t78 and fuel... Apexi s-afc 1</TD></TR></TABLE>



First figure out a realistic HP goal.
Then do some research on what turbo will be good for that goal.
Look into a few brands of rods and pistons that will meet or exceed your HP goals.
Find out what kind of EMS you want to use. I'm personally using Uberdata.

 

DSM 450cc injectors, Walbro 255hp fuel pump, tuned with Crome

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20psib18b1 &raquo;</TD></TR><TR><TD CLASS="quote">that aint gonna be ne time soon but prolly a t78 and fuel... Apexi s-afc 1</TD></TR></TABLE>

oh snap...

safc + 475hp = boooooom!!

 

i was gonna do a eagle b18 stroker kit, re sleeve the engine to 2.0 liters, and as for the s afc not handling the igntion i was gonn run the aem c2di systems.... y would 475 and afc go boom?

 

Don't do the safc hack....get some real stand alone fuel management.

 

But ive been gettin info about turbo gsr's... originally i was gonna do a gsr block type r head i realized that was pointless, then i was gonna go full gsr n then a friend of mine told me about running turbo with vtec and how it would be overkill on the engine once it kicks in... but now im realizing he was prolly talkin about high psi's, ill be running about 15-18 if i get the gsr

 

wats a good stand alone fuel system that they have out there...?

 

MoTec, but that'll cost you out the ***. However, if you wanna run 20pounds you shouldn't cheap out on your management.

 

im not gonna run 20 no more, mayb when i cop my evo.... but as 4 now ill stay with the afc ill run about 15 psi, but wat other companies make fuel management on the apexi level?

 

I suggest you stay away from using the VAFC hack no matter what. Get a chipped ecu and have it tuned with crome or uberdata. Running a VAFC at 15 pounds is still not a good idea. Crome and uberdata can tune both your fuel map and ignition timing. So I say go with one of those two.

 

are those companies? also id like to do it myself.... im going to school to learn about this stuff

 

or neptune