Why not the B20 on non-VTEC Integras?
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Why not the B20 on non-VTEC Integras?
We Civic/CRX swappers love them. But I have yet to hear of a non-VTEC Integra with a B20. Why? I used to have an LS motor in my Civic. And that motor flat out disappointed. The B20Z was a MAJOR improvement over the LS motor it replaced. And the B20 does not need a VTEC head to be great. Finally, it is just a simple drop-in replacement for a B18A/B18B. So why don't non-VTEC Integra people do B20 swaps? In a car that has an engine that is wayyy too small for the weight, a B20 would provide a VERY welcome boost in power and (especially) torque. With a few bolt-ons, this could very well be the GSR killer that non-VTEC owners are looking for.
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Re: Why not the B20 on non-VTEC Integras? (StorminMatt)
B20 head/block in LS=GSR killer? 
b20 complete conversion in hatch was putting down 130 whp. i wouldnt really consider that a gsr killer.
b20 complete conversion in hatch was putting down 130 whp. i wouldnt really consider that a gsr killer.
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Re: Why not the B20 on non-VTEC Integras? (ALLMOTORDC2)
My B20 in my integra smokes GSR's. But then of course its a GSR motor with a B20 botton end. ITR cams, ITR intake manifold, JDM DC4-1 header, and lots of other little **** that i dont feel like getting into.
But a stock B20 motor is definately more fun to drive than an ls cuz it actually has torque, but its not that fast. Vtec is still better.
But a stock B20 motor is definately more fun to drive than an ls cuz it actually has torque, but its not that fast. Vtec is still better.
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Re: Why not the B20 on non-VTEC Integras? (GZR4DR)
If you take a look at the hybrid page, a basic B20 setup with bolt-ons and no tuning produces 138HP, 132ft-lb torque to the wheels. But the key phrases here are 'no tuning' and 'basic bolt-ons'. This first factor is important since there is really no good ECU to use with this motor. You are kind of stuck using the LS ECU, which is not going to properly fuel the motor. With some ECU reprogramming or even a simple fuel pressure regulator, you can increase power and torque further. Secondly, this is with only basic bolt-ons. Some mild cams would definitely up the ante considerably. Regardless, the B20Z is just SOOOO much better than the B18A/B18B.
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Re: Why not the B20 on non-VTEC Integras? (StorminMatt)
I won't dispute that the B20 is a better place to start a build up from than a B18B. But all the money, labor and effort required to swap in a B20 and the gains that you get make it not worth it. It's at least a good 1500 to do the swap, and what do you get out of it? Not enough HP and torque to justify the cost and effort. It might be if you have a G2 Integra, but not the G3's.
If you were going to do an all out buildup, you can still get the LS block resleeved and have the bigger bore.
Also isn't the intake manifold very tall and thus doesn't clear the hood?
I suppose you could go around and then sell your LS engine to lower the cost but still alot of effort for gains.
If you were going to do an all out buildup, you can still get the LS block resleeved and have the bigger bore.
Also isn't the intake manifold very tall and thus doesn't clear the hood?
I suppose you could go around and then sell your LS engine to lower the cost but still alot of effort for gains.
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Re: Why not the B20 on non-VTEC Integras? (DarksideDC4)
Yes but if you stayed with the ls and built up the head, the returns would only be greater every time with B20. I'd love to have a B20!
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Re: Why not the B20 on non-VTEC Integras? (Westrock2000)
I have a stock B20Z in my '94 LS...it definitely has more potential than the stock LS motor...it also bolts right in...i did my swap in about 5 hours and the car was ready to run again...It pulls hard...first three gears...but the top end sucks...overall the torque is worth it but you will cry about your gas mileage...In about two-three weeks i should be getting a b16 head on...to help my gas mileage and give me a better top end...overall its a good bargain for the money
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Re: Why not the B20 on non-VTEC Integras? (chidoks)
What kind of gas mileage difference are we talking? I'm able to get 30MPG from my 90 4Door GS. Expect 2MPG less or more. I thought the CRV got upper 20's to start with I know my dad's RAV4 gets almost 30 and it's kinha like the CRV but honda usually gets better than other companies in it's class.
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Re: Why not the B20 on non-VTEC Integras? (brusk)
i have a 2000 b20z2 in my 91'GS
here's what it made about a year and a half out of the box
http://WWW.public.asu.edu/~shane99
that's with the crappy stock GS exhaust w/ clogged cat from 170k miles and nothiing but an intake and a header. even with those numbers it could beat a GSR
here's what it made about a year and a half out of the box
http://WWW.public.asu.edu/~shane99
that's with the crappy stock GS exhaust w/ clogged cat from 170k miles and nothiing but an intake and a header. even with those numbers it could beat a GSR
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Re: Why not the B20 on non-VTEC Integras? (DarksideDC4)
I won't dispute that the B20 is a better place to start a build up from than a B18B. But all the money, labor and effort required to swap in a B20 and the gains that you get make it not worth it. It's at least a good 1500 to do the swap, and what do you get out of it? Not enough HP and torque to justify the cost and effort. It might be if you have a G2 Integra, but not the G3's.
If you were going to do an all out buildup, you can still get the LS block resleeved and have the bigger bore.
Also isn't the intake manifold very tall and thus doesn't clear the hood?
yup for the money, you should jus go blown or squeeze
I suppose you could go around and then sell your LS engine to lower the cost but still alot of effort for gains.
If you were going to do an all out buildup, you can still get the LS block resleeved and have the bigger bore.
Also isn't the intake manifold very tall and thus doesn't clear the hood?
yup for the money, you should jus go blown or squeeze
I suppose you could go around and then sell your LS engine to lower the cost but still alot of effort for gains.
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Re: Why not the B20 on non-VTEC Integras? (boroDC2)
um..i dont see what the glory is. i raced an 96 civic hatch w/ a b20z swap w/ few bolt ons it ran 15.5. whoopdy do ( si's w/ i/h/e/ were running 16.0. the track i go to aint that great, so just to give you some reference )
I think they would be very fun, even more fun w/ a vtec head, but how's reliability on this swap. any worse than an 'ls/vtec' ( b18a/b? ) hhm....very tempting, yet very expensive. i could use most of the parts off ofmy b17a if i ever did go through with it. ha..keep dreamin dan..
I think they would be very fun, even more fun w/ a vtec head, but how's reliability on this swap. any worse than an 'ls/vtec' ( b18a/b? ) hhm....very tempting, yet very expensive. i could use most of the parts off ofmy b17a if i ever did go through with it. ha..keep dreamin dan..
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Re: Why not the B20 on non-VTEC Integras? (RedStarGsr)
I haven't had a chance to dyno my b20-vtec just yet, but im guesstimating its make high 180's-low190's whp. Its definately a quick car. I can give a good estimation based on past hp i have produced (see sig). In my 4 door it would prob run a mid to low 14 at the track with full interior. I ran 14.1 with my GSR motor before in this car. It has quite a bit of torque, and is fun to drive. The conversion does cost quite a bit if you need someone else to do the work for you. As for me, it was cheap because i do all the labor myself. Just had to buy the block and steel braid line.
I also average 28-30 mpg on my B20vtec. 85% highway miles.
[Modified by GZR4DR, 5:46 PM 2/28/2002]
I also average 28-30 mpg on my B20vtec. 85% highway miles.
[Modified by GZR4DR, 5:46 PM 2/28/2002]
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