Hello H-T 1st off I recently got a hold of some B16b Pistons,rods, and a crank. I really want to build a N/A motor later on in the future and I was just wondering what type of ideas everybody has using the B16b internals. I am looking to make the 200 horsepower mark. Just wanted to know what block and head is best to use. Any help is greatly appreciated.

My friend just recently rebuilt my Gsr motor it was bored to 81.5 and I bought some Nippon ITR pistons for it. Everything else is basically stock. I was told that the ECU is not going to work right with the motor because it is for stock bore. I don't know much when it comes to ECUs so if anyone could help and explain to me how exactly it works that would be great. Again thanks in advance H-T

 

jdm itr pistons, 81.5mm bore. gsr rods and crank. Motor would respond well to a set of S2 Pro1 cams with the pro series springs. use stock retainers. get a good im and header. Get it tuned. Should be very pleased.

 

Sounds like a good setup bro but for my gsr I really just want to keep it the way it is right now because I already know what I want to do to it in the future. I want to fully build it for boost. I was just trying to get some ideas of what I could do with the B16b internals and also was curious about my friend rebuilding the motor and if the ECU will act up. But thanks for your idea

 

What's the point in messing with the engine and trying to get 200 whp N/A when you plan to build it for forced induction? Just leave it like it is until you get ready to boost it.

 

Well see the reason I bored over my gsr is because there was a scratch on one of the walls or I would of left it alone with the gsr pistons. I am going to leave the Gsr alone till the future but I was just trying to get ideas of what I could do with the B16b internals later on down the future with a different block in a different car.

 

So if I understood you correctly...you are going to build a gsr with oversized ctr pistons for boost?

If thats your plan, you will be boosting a 13:1 compression motor.

Your going to have a hard time building a 200whp all motor car for boost in the future. Your better off with 10:1 or 11:1 compression for boost. I think it might be hard to get to your goal with out running about 12:1 compression and a higher profile cam. Just my thought.

It will probably get more involved than you'd like to boost a 13:1 compression motor.

 

Sorry I know i'm not making myself clear lol The CTR pistons rods and crank are never going to touch my gsr. The gsr will be left alone till the future when I decide to build it bro. I am looking for ideas of what I could do with the CTR internals later on in the future whenever I get my EK hatch. I want the gsr to be fully built and boosted and whenever I get the Ek Hatch I plan to put a N/A motor in that one. I want to hear of people using similar all motor builds with CTR internals. Sorry for not making myself clear.

 

In that case put the ctr internals in the b16 they really belong in.

I have seen people (including myself) use ctr pistons in many different motors with varying sucess. They are not really meant for anything other than the b16 they came in. I would (personally) not use them in a b18 again.

I would build a ctr motor. Good luck with what ever route you go.

 

B16b internals in a gsr block with a b16 or itr head will basically be a poor mans ctr motor as the the ctr uses the same block as gsr/itr motors

 

You sure man? I was inclined to believe that all B16 bottom ends had a shorter deck height then b18's... hence the fact that it is only a 1.6 liter due to its lack of stroke in its crank etc.. full b16b internals in a gsr would result in a low compression torqless waste of time..

 

You are confusing it with a b16a that came in crx del sol and civic si. B16b came in ctr only. Simple terms b16b motors are basically the same as itr motors. Same head and block but the b16b has different crank rods and pistons and slightly more aggressive cams then earlier itr motors. 2000-01 it's had same cams as b16b

 

^^ I learn something new everyday.. I assumed that any block stamped b16 was 203.5mm.. thanks man

 

Yea I'm thinking about just saving the ctr internals and just doing that. Thanks

I have heard of this as well but wouldn't my compression be pretty high with the ctr pistons instead of the itr?

 

It will be whatever a ctr cr is if using a itr/b16 head gsr will be slightly higher. If remember right I think cars are 11.5:1

 

^^ok cool thanks. Anybody know if you rebuild a motor and you keep the stock ECU and use 81.5mm pistons will the car run right or will it need to be tuned?

 

Anytime you vary a motor from stock it "should" be tuned, or at least be running a p28 ecu with a chip that has a map made for the motor.

I wouldnt doubt some one is running around with a 12:1 compression motor and pro1's on a stock computer though. Just convert to obd1 and get a map made for the motor.

www.phearable.net has decent prices, www.xenocron.com is also a good place. Chris Harris knows his **** for lack of a better term. I cant remember who is cheaper, but I think xenocron is. Good Luck