help for LS swap

[outofstep]

ok im getting a great deal on a LS swap. all i will need is a alternator,and to replace the piston rings cause it is smoking a lil, i will probally go ahead and do pistons, rings, and rods. and i'll see about a P&P on the head. im putting this into a 90hb, what else could i replace in the motor to make sure it is running 100% i even am considering going with a b16 head to have vtec... what are pros and cons of that, any help would be great.

[Santas90Si]

Goa head and replace the water and oil pumps and anything else that would require you to tear the engine apart again...timing belt and seals. As for the ls/vtec I have no idea I am still A6ing

[optimuscivic]

Originally Posted by outofstep

ok im getting a great deal on a LS swap. all i will need is a alternator,and to replace the piston rings cause it is smoking a lil, i will probally go ahead and do pistons, rings, and rods. and i'll see about a P&P on the head. im putting this into a 90hb, what else could i replace in the motor to make sure it is running 100% i even am considering going with a b16 head to have vtec... what are pros and cons of that, any help would be great.

im going through this same swap right now. i changed the timing belt, water pump, thermostat, oil pan gasket, head gasket, spark plugs, but if i were you i would wait to put the b16 head on. its alot of work to build a good ls/vtec engine. http://www.importreview.com/reviews/lsvtec.html
check this site out. i think if you wanted to a little more hp then maybe you should buy some decent cams before you jump into the ls/vtec setup.

[black89crxLs]

good idea, u have to re do dowel holes, get a new water and oil punp, b16a head, flows good, install oil squirters, run slightly thicker oil, to keep parts good and coated, be expecting about 160-185 in HP, and the Tq is ungodly,

[outofstep]

lol, sounds pretty hard and expensive to LSvtec...
i wonder how fast just a built up LS would be?

[optimuscivic]

Originally Posted by outofstep

lol, sounds pretty hard and expensive to LSvtec...
i wonder how fast just a built up LS would be?

instead of building up an ls you could always piece together a turbo setup that would be close to the same price as building an ls. and would have a decent amount of power, ls turbo setups are usually at least 200 whp.

[black89crxLs]

Originally Posted by outofstep

lol, sounds pretty hard and expensive to LSvtec...
i wonder how fast just a built up LS would be?

STOCK LS IN A CRX, WILL RUN ABOUT HIGH 13 TO A MID 14....ALOT TO DO IF THE DRIVER CAN HOOK IT UP AND FEATHER IT OUT TO CATCH TRACTION!!!!!!!!!!!!!!!!!!

[slo89]

i have a stock '91 ls engine with 120K miles on it in a 89 4dr, all i have is a act 4-puck clutch disc and a chipped ls ecu w/8000 redline and it will pull on second gen. b16's. build the ls and beat them all.

[Problem_Si]

Originally Posted by black89crxLs

STOCK LS IN A CRX, WILL RUN ABOUT HIGH 13 TO A MID 14....ALOT TO DO IF THE DRIVER CAN HOOK IT UP AND FEATHER IT OUT TO CATCH TRACTION!!!!!!!!!!!!!!!!!!

not a chance....

from a stock b18 you can expect very high 14's to low 15's. zc in a civic runs 14.9-15.0 with the si trans...ls trans has wider gearing, so i doubt that its faster than a zc on a 1/4 mile run. both have about 140 hp.

any route you go...your options will be limitless witha b series motor...each route has its pro's and con's, but you can make power many different ways. its really a matter of personal preference.

if you wanna do something really cool that not many people consider....look into the stroker kits that eagle has for the b18. I think after the new crank and internals, your displacement is something like 2.3 liters.

crx + 2.3 liters of non-vtec fury = yumm

[my91crxsi]

im also doing an ls swap into a 91 crx si
and need info on the wiring, the b18a1 is from a "93 so its obd1 im wondering if i can trade for a 90-91 ecu, use the modified crx harness and get everything to run right any info would be helpful