I'm currently getting all my parts together to boost my civic. I plan to use this setup:
T3/T4 hybird turbo
Custom portmatched manifold and downpipe
Probably Tial wastgate
~440 injectors (RC)
Apexi AFC
Greddy profec B boost controller
Spearco/Greddy/Griffen Intercooler
Greddy BOV ( possible )
And all the rest of the necessary stuff to make it happen. I want' to run 10psi on this motor. Well probably 7-8 on a low setting and 10 on the high setting.
I want' to know if there might be a chance I would need to change my vtec crossover with this turbo setup. I dont' know if I want to get the Apexi Super AFC or the Apexi Vtec-AFC. There's only a $40 difference between the two really, but the little stuff adds up.
Has anyone else here has to change it?

PS. where the heck do I get custom piping , since I don't think a 'kit' will work since I have a swapped motor.

Any help?

 

no you don't need to change the vtec crossover point and you can get pipes to use for your setup at http://www.jcwhitney.com this site tells you some part #s for them among all the other usefull information http://coolazz.tripod.com/turbo.html.

If you wanted someone to do the piping for you, then, I don't know.


[Modified by b3435, 6:13 AM 1/30/2003]


[Modified by b3435, 6:15 AM 1/30/2003]

 

When he goes to DYNO it he'll find out if he should change the vtec point. You just can't assume that his powerband is going to be a smooth ramp like stock with-out actually DYNO'ing it.

 

i've really pondered whether it would be advantageous to make vtec engagement dependant on boost instead of rpm....since i could make it that way if i wanted.

like maybe engaging vtec early if you're trying to spool quickly at low rpm

and not engaging it at all if you're in vacuum

any thoughts anyone?

i might try it with the ems and see how it performs

 

So Vtec coming on early 'could' make exhaust gas flow a little better to spool the turbo up quicker? I would assume that there would be more lag because the high cam would be coming on too soon/ not at an optimal time to premote good flow....

 

In my experience, lowering the vtec engagement does not help.
In fact, i found that the vtec point is not as critical as it is in a N/A
car. I would just leave it stock, or wait for dyno.