b20 with type r head
Registered!!
Joined: Jan 2002
Posts: 2,299
Likes: 0
From: San Diego, California, USA, Northern Hemisphere, Earth, Sol System, Spiral arm of the Milkey Way Galaxy
Rep Power: 0 
yea a B20B/B18C5 hybrid is possable, but its much less expensive for a B16A head swap. Take that, then turbo it, it can handle MAD boost.
With large displacement engines that deliver most of their torque in the low RPM range, you typically want longer gears. With the opposite (small displacement, low torque), shorter gears are preferable.
I know a lot of people with CRVTEC engines choose to swap in the Type R transmission because of the shorter, more aggressive gearing. I don't know of many people who choose to stay with the long LS gears if they have better options.
I know a lot of people with CRVTEC engines choose to swap in the Type R transmission because of the shorter, more aggressive gearing. I don't know of many people who choose to stay with the long LS gears if they have better options.
B20 Block with B18C1 head and B16/ITR style intake manifold is a better option.
As for gearing LS trannys are OK for turbo but would rather go with B18C1 or B16A/ITR with a LS 5th gear and probably the 4.7 FD over the 4.4.
Long gears will give you a higher top speed but that means jack **** if you dont have the HP to get you there.
B18C with a LS crank and resleeved is something i would take over a LS VTEC or B20 VTEC conversion just for the fact you dont have to screw around with the head and run an external oil line.
As for the H23 Block and H22A head, just keep the H22A and swap in the 95mm H23/F22 crankshaft & Rods for the stroker effect.
As for gearing LS trannys are OK for turbo but would rather go with B18C1 or B16A/ITR with a LS 5th gear and probably the 4.7 FD over the 4.4.
Long gears will give you a higher top speed but that means jack **** if you dont have the HP to get you there.
B18C with a LS crank and resleeved is something i would take over a LS VTEC or B20 VTEC conversion just for the fact you dont have to screw around with the head and run an external oil line.
As for the H23 Block and H22A head, just keep the H22A and swap in the 95mm H23/F22 crankshaft & Rods for the stroker effect.
yeah, i plan on getting a b20 block with the type r head on my crx with i guess type r tranny, since you say the gearing is more aggressive. i hope the whole thing will fit on this tiny body of the crx. would the type r ecu work with that setup?
The CRX is OBDI, but yeah the Type R ECU should work fine. I would check with a shop with a lot of experience in CRVTEC just to be sure, though. You may also think about using an EMS like Hondata to make sure everything is tuned correctly. Hondata actually works really well with OBDI setups.
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
If you're in the Southern California area, ImportBuilders (http://www.importbuilders.com) has a ton of experience building CRVTEC engines. They're also the preferred Hondata tuner/dealer in the area. Even if you're not local to them, it's worth a shot shooting Jeff an e-mail asking his opinion.
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
If you're in the Southern California area, ImportBuilders (http://www.importbuilders.com) has a ton of experience building CRVTEC engines. They're also the preferred Hondata tuner/dealer in the area. Even if you're not local to them, it's worth a shot shooting Jeff an e-mail asking his opinion.
Originally posted by htowncivicEX
The CRX is OBDI, but yeah the Type R ECU should work fine. I would check with a shop with a lot of experience in CRVTEC just to be sure, though. You may also think about using an EMS like Hondata to make sure everything is tuned correctly. Hondata actually works really well with OBDI setups.
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
If you're in the Southern California area, ImportBuilders (http://www.importbuilders.com) has a ton of experience building CRVTEC engines. They're also the preferred Hondata tuner/dealer in the area. Even if you're not local to them, it's worth a shot shooting Jeff an e-mail asking his opinion.
The CRX is OBDI, but yeah the Type R ECU should work fine. I would check with a shop with a lot of experience in CRVTEC just to be sure, though. You may also think about using an EMS like Hondata to make sure everything is tuned correctly. Hondata actually works really well with OBDI setups.
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
If you're in the Southern California area, ImportBuilders (http://www.importbuilders.com) has a ton of experience building CRVTEC engines. They're also the preferred Hondata tuner/dealer in the area. Even if you're not local to them, it's worth a shot shooting Jeff an e-mail asking his opinion.
I stand corrected - all CRX's manufactured in 1991 were OBDI (that was the year that California first started requiring it). All previous CRX models were non-OBD.
EDIT: Just quickly looked it up. Older CRX's actually used OBD0. http://pgmfi.crx-forum.org/resources...ification.html. Regardless of whether you have OBDI or OBD0, Hondata has an application for it.
EDIT: Just quickly looked it up. Older CRX's actually used OBD0. http://pgmfi.crx-forum.org/resources...ification.html. Regardless of whether you have OBDI or OBD0, Hondata has an application for it.
Last edited by htowncivicEX; Jun 19, 2003 at 11:48 AM.
Originally posted by htowncivicEX
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
Some CRVTEC setups can rev up to 10k RPM if tuned properly. The key is in the last two words, though.
He has since sold the ITR shell, and has dropped the motor into a 6thgen hb. Five or Six hundred pounds lighter. He's taking out those high compression springs, and is going to turbo it. It makes me want to puke.
*sigh*
Mike
Last edited by mk32382; Jun 22, 2003 at 04:28 PM.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
carlinag13
1st - 5th Generation Civic 1973 - 1995
2
Jun 18, 2015 09:49 AM





