GSR, LS, B16?
Originally Posted by Sr20det240
so basically, if you have boost, v-tec is really useless unless your goin all motor. And why is an LS the best to boost? I know it has something to do with the compression rate of the motor.
about compression. yeh it has a little to do with it. vtec engines are stocked with a little bit more compression than the ls but you could up the compression in an ls and get better results and less tuning headache with the same comp. as a b16,etc.
Originally Posted by _burn_
alot of parts for the ls are cheaper, the stock block can handle more boost, and it has the highest stock bore of the b-series's besides the b20.
And I'm sorry, but you are just plain wrong about the bore.
All b-series have 81mm bore, except the b20's.
LS's do have a slightly longer stroke resulting in increased torque.
so the best b-series motor to boost is an LS. It's a fact. Low compression motor and even has the better torque, with the highest stock bore. It's cheaper and easier to tune w/o the v-tec. Best of all worlds.
Originally Posted by Madness
The stock block can handle more boost pressure because of the lower compression. It can not necessarily make or handle more power.
Originally Posted by Madness
And I'm sorry, but you are just plain wrong about the bore.
All b-series have 81mm bore, except the b20's.
LS's do have a slightly longer stroke resulting in increased torque.
All b-series have 81mm bore, except the b20's.
LS's do have a slightly longer stroke resulting in increased torque.
its got the largest displacement of the b18s
Originally Posted by Madness
The stock block can handle more boost pressure because of the lower compression. It can not necessarily make or handle more power.
And I'm sorry, but you are just plain wrong about the bore.
All b-series have 81mm bore, except the b20's.
LS's do have a slightly longer stroke resulting in increased torque.
And I'm sorry, but you are just plain wrong about the bore.
All b-series have 81mm bore, except the b20's.
LS's do have a slightly longer stroke resulting in increased torque.
Yes an LS has an 81mm bore like the rest of the B-series for the exception of the B20, 84mm. The difference is the longer stroke 89mm(LS) vs 87.5mm(GSR).
Basically the B20 and LS are the same motor except for the bore.
Also LS's have been known to produce in the ranges of 350-450whp with no problems and can made as much as 672whp in which is posted on www.importreview.com
Originally Posted by Hybrid_vtec
Also LS's have been known to produce in the ranges of 350-450whp with no problems and can made as much as 672whp in which is posted on www.importreview.com
Originally Posted by _burn_
we're talking about stock engines.
well if we are talking stock engines then I have this here for you all, a dyno comparison of a stock B16a and a stock B18a! You can clearly see the LS at anygiven time makes 10-15 whp before the B16a does and at one point(vtec crossover) 25 more whp than the B16a! And torque wise, the LS makes about an average of 30ft-lbs. of torque at the wheels more than the B16 at any given time! Enjoy!
DYNO:Stock B16a vs. Stock B18a
Originally Posted by Hybrid_vtec
well if we are talking stock engines then I have this here for you all, a dyno comparison of a stock B16a and a stock B18a! You can clearly see the LS at anygiven time makes 10-15 whp before the B16a does and at one point(vtec crossover) 25 more whp than the B16a! And torque wise, the LS makes about an average of 30ft-lbs. of torque at the wheels more than the B16 at any given time! Enjoy!
DYNO:Stock B16a vs. Stock B18a
DYNO:Stock B16a vs. Stock B18a
for that post thats why ive never been beatin by another crx with a b16 boltons or not, and ive run more than i can count on one hand. not too long ago i got a couple of free pulls on the dynojet at a redneck stockcar tuning shop my great uncle works at up in maryland and put down 141 and 125 ft/pound of torque my second pull. so they also respond well to basic bolt-ons
Originally Posted by _burn_
for that post thats why ive never been beatin by another crx with a b16 boltons or not, and ive run more than i can count on one hand. not too long ago i got a couple of free pulls on the dynojet at a redneck stockcar tuning shop my great uncle works at up in maryland and put down 141 and 125 ft/pound of torque my second pull. so they also respond well to basic bolt-ons
Thanks, I have always believed this too and have tested these motors against each other different car and stock for stock the LS wins hands down! LS vs GSR is a totally different story though.




