ls boost vs ls vtec boost
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ls boost vs ls vtec boost
I'm sure this has been brought up before but i need to get some opinions on witch route to go. witch would be the best bet ls boost or ls vtec boost.
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Re: ls boost vs ls vtec boost
Its a no-brainer. The vtec head flows better and will make more power with less boost. So what is 3-400 for a vtec head and a lot more power? Just do it.
Also once all the girls find out u got a vtec, they will be all over ur nutz!
True story
Also once all the girls find out u got a vtec, they will be all over ur nutz!
True story
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Re: ls boost vs ls vtec boost
If it's stock bottom end, stick with the LS. Why? Because the LS rods/rod bolts suck and don't like RPM's.
I had an LS/vtec in my integra, gt32e, spun it to 8200 rpm's with no problems, but didn't beat on it all the time.
Now I have an LS longblock in my civic and it makes much better tq (probably cuz of the small 18g and high boost) but still, the tq makes the car moveeeee! I would light up the tires to redline in third gear.
That was until my rod snapped. I was only revving to 7300rpm's, but with the tq and wheel spin, every time I got on the gas it would basically sit at redline. The rods couldn't keep up and gave out.
I didn't pull it apart yet, but I'm positive it was a rpm issue not a power level issue.
So if you're keeping a stock bottom end, stick with the LS head and turn the boost up a little to compensate, and make loads of tq. You'll love it :D
I had an LS/vtec in my integra, gt32e, spun it to 8200 rpm's with no problems, but didn't beat on it all the time.
Now I have an LS longblock in my civic and it makes much better tq (probably cuz of the small 18g and high boost) but still, the tq makes the car moveeeee! I would light up the tires to redline in third gear.
That was until my rod snapped. I was only revving to 7300rpm's, but with the tq and wheel spin, every time I got on the gas it would basically sit at redline. The rods couldn't keep up and gave out.
I didn't pull it apart yet, but I'm positive it was a rpm issue not a power level issue.
So if you're keeping a stock bottom end, stick with the LS head and turn the boost up a little to compensate, and make loads of tq. You'll love it :D
#6
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Re: ls boost vs ls vtec boost
if your trying to do something like this on a stock bottom end then you need to smarten up in my opinion
do it right the first time or dont do it at all
do it right the first time or dont do it at all
#7
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Re: ls boost vs ls vtec boost
i would stick with the LS, but i'm not out there trying to create 500 whp or anything. i got scared of ls/vtec the first time i read something about rod/stroke ratio for that setup. unfortunately, thats all i really know, but i'm happy to stick with the b16.
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#10
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Re: ls boost vs ls vtec boost
depending on powerband, tune, and turbo setup, lowering the VTEC engagement at a lower RPM helps with LS VTEC setups since you shouldn't be revving it up past 7500 anyway. Yes, for that type of setup, and if budget allows for it, get forged rods, bearings, pistons and ARP(or the like) bolts for an LS, mate it to a b16 head and call it a day. The turbo speaks for itself.
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Re: ls boost vs ls vtec boost
Now some of the 350whp LS/V setup's with relatively low boost.. Those are impressive.
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