B18 or B20
12-15-2002, 11:28 AM
#2
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Re: B18 or B20 (RotiEatter)
ive seen plenty of quick b18b turbos, not to many b20s. Ive also knowthat the b16a and b18cs can be tuned and make more power than the b18bs. lots of people say vtec and turbo dont mix well. properly tuned its a good combo.
12-15-2002, 11:35 AM
#3
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Re: B18 or B20 (Soulless)
ive seen plenty of quick b18b turbos, not to many b20s. Ive also knowthat the b16a and b18cs can be tuned and make more power than the b18bs. lots of people say vtec and turbo dont mix well. properly tuned its a good combo.
VTEC and turbo's do mix well? Why because they are two different "power additives"??
Actually, VTEC isn't a power additive. The only reason people turbo B18bs and B20s are because they have higher displacement then b18cs...VTEC is not the issue.
12-15-2002, 11:37 AM
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Re: B18 or B20 (Soulless)
if you do the B18 and turbo it ... it will probably blow on you in a 10000 miles. the B20... im clueless. i dont have any friends that got turbo B20s. if you really want to turbo motor. i suggest B16 or B18c. the B18 was made to withstand the performance so the turbo will last a really long time. but thats just my opinion.
12-15-2002, 11:41 AM
#6
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Re: B18 or B20 (toEknEEg)
if you do the B18 and turbo it ... it will probably blow on you in a 10000 miles. the B20... im clueless. i dont have any friends that got turbo B20s. if you really want to turbo motor. i suggest B16 or B18c. the B18 was made to withstand the performance so the turbo will last a really long time. but thats just my opinion.
I've seen multiple cases of people running a long time on turbo B18bs running like 8 psi without the motor being opened. If you actually build the motor, you can run more boost and the motor will last just as long.
12-15-2002, 11:46 AM
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Re: B18 or B20 (94HybridEX)
ive seen plenty of quick b18b turbos, not to many b20s. Ive also knowthat the b16a and b18cs can be tuned and make more power than the b18bs. lots of people say vtec and turbo dont mix well. properly tuned its a good combo.
Wow. Please don't post.
VTEC and turbo's do mix well? Why because they are two different "power additives"??
Actually, VTEC isn't a power additive. The only reason people turbo B18bs and B20s are because they have higher displacement then b18cs...VTEC is not the issue.
Wow. Please don't post.
VTEC and turbo's do mix well? Why because they are two different "power additives"??
Actually, VTEC isn't a power additive. The only reason people turbo B18bs and B20s are because they have higher displacement then b18cs...VTEC is not the issue.
I agree with turbo'd VTEC motors, thats what most, if not all the major drag racers use!
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12-15-2002, 11:54 AM
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Re: B18 or B20 (94HybridEX)
I have a B20 in my 92 Si but I am going N/A. If I was going with boost I would build a B16.
B16 has a great rod to stroke ratio. Change out vtec cams with some turbo cams, since you dont want alot of valve overlap with boost.
B16 has a great rod to stroke ratio. Change out vtec cams with some turbo cams, since you dont want alot of valve overlap with boost.
12-15-2002, 11:55 AM
#9
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Re: B18 or B20 (Soulless)
I appologise.
But, if I read that wrong or misinterpreted it, others may have as well. I don't want people getting misinformation from H-T.
Sorry!
But, if I read that wrong or misinterpreted it, others may have as well. I don't want people getting misinformation from H-T.
Sorry!
12-15-2002, 12:09 PM
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Re: B18 or B20 (94HybridEX)
b18 or b20....... b20 cylinder walls arent very strong.... u can boost more and more safely on a b18b. the b20 has a higher displacement, so its a bonus. but i would recommend, if the cash allows... b18b re-sleeved to 84mm, it'll be a b18b with 2.0 displacement.... not only that but it'll allow for more power.......... just an idea.... i'd get a b18b in any case.
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12-15-2002, 01:38 PM
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so...
so what is being agreed upon?
it seems to me that the best idea would be a ls/vtec resleeved to 84/85 mm......
can we agree that with a turbo this would be a very powerful engine that would last a long time?
it seems to me that the best idea would be a ls/vtec resleeved to 84/85 mm......
can we agree that with a turbo this would be a very powerful engine that would last a long time?
12-15-2002, 02:07 PM
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Re: so... (sinfestboy)
If you are curious about B20 turbos just IM FUCATYPR. He has done a B20/VTEC turbo and a non VTEC B20 turbo. I have rode in both cars and will vouch that both were scary fast.
12-15-2002, 02:49 PM
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Re: so... (greebler)
Okay assuming you have nothing for a swap a b18b swap is about 1500-2000 complete and then turbo assume maybe 3000. ( we're talking kits here not home made) so we have at most 5000. A b20 is about 900 just block and have fun trying to source parts for it and we'll assume 3000 for the turo again and probably be at anywhere from 5000-6000 depending what deals you get. A b16a is 1850 from osaka complete ( beginning next year) and then with the turbo about 5000. I say go with the b16a it is a racing engine and has a great r/s ratio. Everybody that makes good power with a turbo uses a vtec engine either a b16a or a b18c. There is a reason they are more expensive
12-15-2002, 03:07 PM
#17
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Re: B18 or B20 (Ricey McRicerton)
When naming the motors, Honda "rounded" the displacedment.
Correct me if I'm wrong, but I believe that the B18C1/5 are actually like 1.78L motors where as the B18B is actually 1.82L.
Those may not be the correct numbers, but its along those lines.
Correct me if I'm wrong, but I believe that the B18C1/5 are actually like 1.78L motors where as the B18B is actually 1.82L.
Those may not be the correct numbers, but its along those lines.
12-15-2002, 05:43 PM
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Re: so... (greebler)
B20 will not work right, the drive shaft might give you some issues. Really shouldn't use this engine on our cars..... So iv herd
The drive shaft might give you some issues??? It will not give you issues.
12-15-2002, 07:02 PM
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Re: B18 or B20 (Ricey McRicerton)
Can somebody expain to me how a b18b has a different displacement from a b18c1???
B18B stroke = 89mm.
Both have an 81mm bore.
12-17-2002, 06:44 PM
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Re: so... (greebler)
B20 will not work right, the drive shaft might give you some issues. Really shouldn't use this engine on our cars..... So iv herd
12-17-2002, 08:13 PM
#24
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Re: so... (The Sheriff)
B20 will not work right, the drive shaft might give you some issues. Really shouldn't use this engine on our cars..... So iv herd
There are no issues with the B20 other than having to use LS intake manifold. The B20 is identical to the B18b, just bigger bore and different cam profiles.
There are no issues with the B20 other than having to use LS intake manifold. The B20 is identical to the B18b, just bigger bore and different cam profiles.
actually....cams are different? are you sure?.....why is there so much misinformation on the internet???
12-18-2002, 11:46 AM
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Re: B18 or B20 (nerces)
b18c1 and T3/T4 hybrid turbo go good together B20 is big but not as fast or as cool as a GSR go B18C1 you will love it!!! 
