I have a set of TWM's for a b16. I know they cast them once and modify to fit b16/b18. To me this seems like trying to put an oem type R manifold on a gsr head. What Im asking is how can i modify them to take full advantage of what they were meant for? Is there anyway to i.e. porting/reworking? I'm looking for advice from tuners and engine builders. not people who are just complaining because they stick. My setup
B20vtec
-p30 head portflow valvetrain (not ported)
-Skunk2 Pro2's
-Wiseco 11.8:1's
-Rage Tri-y (standard size)
-Knife edged crank
-Toda Flywheel
-ys1 trans
-tuned on AEM


Modified by soulpwr at 1:41 AM 1/20/2007

 

What do you make now?

 

227/170 dynapack

 

what would that be on a dyno jet??

 

I fail to see the relevance of that question. I'm asking if there is anything to be gained by reworking or modifying the throttle bodies.

 

https://honda-tech.com/zerothread?id=1604199

also how are you going to tune them? I understand tuning itb's for everyday driveabilty is at the very least, Hard more of a hardware/ sensor limitation, than a software thing

 

Interesting link. As for tuning it was tps based. Possibly half and half I'd half to check with B19coupe since he's the one who did it. I dont drive it everyday, its more of a purpose built street car. Hiccups and cold starts arent an issue for me. I just wanna make more power and them work more efficiently.

 

what size twm's are you using?

 

50mm.

 

How do they match the head? I have seen good and bad. To get good numbers we always had to port them. Sometimes move the mounting holes to get a better flow path.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF &raquo;</TD></TR><TR><TD CLASS="quote">How do they match the head? I have seen good and bad. To get good numbers we always had to port them. Sometimes move the mounting holes to get a better flow path. </TD></TR></TABLE>
Honestly i didnt match them up to a gasket to see. (stupid, I know) but I did see you post that in another thread. Also is there anything to be gained by relocating injectors?