Here is my dillema guys i currently have a fully built n/a ls/vtec and i want to go forced induction now what i wondered was would you by an ls and turbo it or just keep the ls/vtec nd turbo that.

My ls/vtec was an n/a beast hitting 194whp at 133ft. lbs. now with all of the mods i have on my motor it would be a waste to start over with a bare ls block, wouldn't you think?

What i wanted to change in my currewnt setup is my cams go from ny skunk2 stage 2's to some gs-r's, my pistons go from the high comp. to lower comp.
sell the header, intake and exhaust.

My mechanic is saying sell the motor and go with the ls?....im thinking i shouldn't cause it would be more expensive i think if i did that...the little extras that i have would be gone such as my ITR manifold, aem fuel rail,and fuel pressure regulator, skunk2 springs and retainers, Z10 crank girdle and eagle rods. You know it just seems to be a waste.

Anyway your feedback is important so let me here it....what would you do?

thanks
gen2teg

 

I have a turbo LS/Vtec and I like it. You'll find a lot of people on this board who say that the overlap of the vtec cams isn't so good for boost however. There are some ways to remedy this.

1) GSR cams, I hear, work well.
2) You can dial out some overlap with cam gears
3) You can buy some turbo specific vtec cams.

I don't have dyno numbers to prove it but my *** dyno can feel the difference when I'm boosting and the Vtec kicks in.

Also, search for a post about the z10 girdle, maybe someone can post a link. Supposedly the designer of the z10 girdle recommends doweling it to the main caps and then line boring the crank journals with everything torqued. Which in my opinion is such a major PITA I'd rather go without it or buy a GSR block.

On the other hand you could sell all your NA goodies and use the money for a sleeved block and hondata.

 

I would probably keep the VTEC setup but the first things that would have to go are the cams, no questions there...stock B16's or GS-R will work fine, then install a slightly thicker HG and boost away. Everthing esle can be kept and the goodies you sell will lessen the cost of the T/K.

 

My head concerns me though because of the fact my mechanic says it's been ported and polished with the n/a setup in mind and wouldn't be as effective as a new one with a different port job?

Should i just replace the head and get it re done?

thanks
gen2teg

 

im assuming you have the b16a head, so i say sell or trade that one for a stock one and get some work done with it and turbo the ls/vtec.

how high is your compression as of right now?

ls/vtec turbo is the way to go after the b20/vtec..

search a lot of people like their b20/vtec turbo here...

 

As for the head thats what i thought i would have to do, the only thing is i have Skunk 2 stage 2 cams and the Skunk springs and retainers. So i guess i can sell it as a package.

Currently my compression is at 10.8:1 with the ehad milled .10 thousandths, but i am replacing the pistons for lower compression ones something like 9.0:1.

 

Anymore feedback?!

gen2teg

 

if money is not an issue boost the LSvtec. just depends how much power u want. LS's can make good power and will cost u less money.

 

Im looking to get anywhere from 275whp to 300whp.

so you think i should just go with the ls?

See here is the scenario my mechanic has an ls motor he is willing to sell me for $100. Now what i thought of doing was swapping out my skunk2 springs/retainers, itr intake manifold,aem fuel rail,and pressure regulator also the Z10 crank girdle from my curent block, ARP head studs and swap it over to the ls block? and basically sell off my header,2 1/4" exhaust and skunk2 stage2 cams and sell off the ls/vtec with the srp 10.5:1 pistons and eagle rods with the b16 ported polished head?

what do you think?

thanks again
gen2teg

 

you can boost it now with 10.8:1 just go with a hondata set up with some 550cc or 720cc's and run ill say 7-10psi max on pump gas and 15-16psi max on race gas

with will make over 300whp @10psi

 

I plan to only run 11-13psi but i am definately changing the pistons to lower compression 9.0:1...i hear people saying 10.8:1 is too high?

Injectors are a must as well as gs-r cams with that i think i should be o.k.

I currently have a stage 2 hondata which im selling to go with the 2b for boost!

thanks
gen2teg