i have a 90 intera rs turbo motor with a non vtec head. is a vtec head with street/strip cams and an after market intake mani worth it, is it a big gain? or should i just stick with what i have. im not asking for hp #s or anything bc i know there is a bunch of varibles, but just give me an idea, and recommandations for cams and intake mani . what companies have the best products for turbo. thanks

 

also are all the b series heads interchangeable between each other?

 

putting a vtec head on your motor is basically just making it an ls/vtec turbo..
since you're already running a turbo, personally i'd think it'd be easier to just build your motor and run more boost..

any b-series head will work on any b-series block.. there are two types of vtec heads PR3 (b16, b17a1, b18c5) and P72 (b18c1)

the biggest difference that you'd have to worry about is just that the intake manifolds are different, so you'll need to get the matching manifold.

i don't honestly think that the performance gains warrant doing the conversion.. i say build your motor and run more boost..

 

someone gave me this info, is this accurate bc i got two different answers. once again i have non nonvtec and plan to put a vtec head on it


no, vtec heads have different bolt patters on them than the the non vtec models.. now theres a site im sure someone knows.. or i can find it for you in a while.. but it lets you put on a vtec head to do a ls/vtec hybrid.. read up on the reliability of it.. and it comes all in a kit, so you can move the studs from the head, to the new location, and the oil lines and all that stuff..

 

putting a vtec head on your non-vtec block isn't a problem, it's just time and money and work..

building your current motor is probably a better investment.. maybe upgrading your ems first?

 

VTEC is over rated.

 

turn up the boost

 

sounds good to me, what do u guys recoomend for a internal setup, rods , crank, pistons?

 

i'm building my motor right now..
here is the setup

people prefer different parts..
for rods: crower, eagle, pauter, manley
for pistons: je, wiseco, arias, cp
just use your stock crank.. you'll probably never make enough power to need a different one

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VacantBanana &raquo;</TD></TR><TR><TD CLASS="quote">sounds good to me, what do u guys recoomend for a internal setup, rods , crank, pistons? </TD></TR></TABLE>

stock crank can handle 1000 hp.

pistons, rods...FORGED

sleeve the motha ***** blocka