damn this....


[Modified by dbo, 4:17 AM 10/8/2002]

 

the b18b (non-vtec) motor has lower compression and is more turbo-friendly

 

i dont think it has much to do with the vtec, the non-vtec engine has lower compression, little bit bigger displacment and the tranny has longer gears which are better for turbo.

 

oh ic, but if u add vtec would it raise compression or would it still perform just fine

 

if you add a vtec head it shouldnt raise the compresion and yea it would perform fine. i think it might make more power than a non-vtec turbo

 

vtec should put out more but you would have to run lower boost so you wouldn't get too much over what you are already running. to get the most out of it you should get lower compresion pistons.

 

The difference in price between a late model GSR and LS could get you a turbo kit.

 

Well, if you decide to put a VTEC head on like they were saying you should see very nice HP gains... Well, the reason is because a VTEC head flows so much better than the LS head. People put a $500 port & polish job on an LS and it flows like a VTEC head straight out of the box, so you can put the $500 port & polish job on the VTEC head and reach flow numbers that can never even be attainable by the LS head... I've been toying with the idea of going back to LS-VTEC this Winter so I can get the 600hp monster I've been looking for... Well that'l take a lot more than a VTEC Head and the p&p job. But yah, I might be looking to sell my whole setup soon. So let me know if anyone has any offers as well...

Later,

Sean C.

 

What does port and polish actually do? So your head would flow better by doing this?

 

ttttt

 

damn this....

 

Well, porting is the process where a machinist puts your head on a flow bench (measures how many CFM's can flow through your head) and also sometimes a swirl meter (measures how the air moves out of your combustion chamber and at what speed...) and they remove part of the ports (by grinding away metal from the ports) that make the head flow the air more directly to the combustion chamber, and to get a better air fuel mixture into the combustion chamber. Polishing mainlly is after you port a head, the air can flow quicker and with less resistance if it is flowing through or over a smooth surface so it is polished up (not necessarily to a shine) to make the air again flow better. Hope this answers your question, but if not I'll look for some links for you to read so that the holes I left in my explination can be filled.

Later,

Sean C.