On a b18c5 motor what would be best to do in your opinion. My friend is looking to get one, and asked me what to do in way of FI or NA. So I just thought I'd come to HAN and talk to you guys since I don't want to direct him the wrong way. I was thinking NA, but I don't know... What is the best way for the TypeR :awais:

 

First question is, what's he going to be doing w/the car?

Both philosophies have their pundits. Drag racers will tend to favour turbo, and the users of road courses will tend to favour normally aspirated.

Fact is, though, that there are very reliable ways of building the ITR motor either way.

 

my opinion is that a b18c5 should be kept NA

 

Well he will most likely be like me. Autocross, daily driver, and a track racer too.

 

In that case I'd suggest NA, or perhaps mild supercharger.

You can get 200 Dynojet out of the OEM cams, you know.

 

I agree with Snoopy on this one. Keep the B18C5 NA. If you want boost do it on a GSR powerplant.

 

Why? Provide facts why someone should use a GS-R motor instead of an ITR motor. Don't whine about the compression either, that just means more power for the same level of boost and better off-boost drivability.

Doesn't matter so much what he wants to do with the car IMO, but rather, how fast does he want the car.

I'd drive a boosted ITR at the track all day long. :shrug:

 

It is not the fact that it cannot be done...sure you can boost an ITR, it has been done. You are prone more to detonation if not properly tuned because of the compression however.

It is more my philosphy than anything. Honda is known for making extremely good NA motors and moreson NA race cars. The ITR, and more importantly the B18C5 highlights this to perfection. To me keeping an ITR motor NA is keeping it pure...and because he wants to swap a motor and boost it anyway I suggested the ITRs nearly identical twin...the B18C1.

 

Personally, I'd rather boost the B18C5. Since I'd never setup a turbo without tuning it anyways then it's a moot point IMO. I wouldn't be going for big power and you can run 10lbs on a stock B18C5 easily if you know what you are doing.

I see where you were coming from however. I just didn't want the guy to be scared of boosting it from your post which seemed to intend that the GSR motor is simply _better_ for boosting. :cheers:

 

No problem...it is good to clarify posts. Not everyone has the same level of understanding and we are here to help, not confuse each other.