help me out guys....

h22a motor
portflow head
ferrea valves
crower stage 3's
11.cr
euro-r manifold ported and polished etc..
3in ITR aem CAI intake..
Hotshot drag header
2.5 inch piping
hondas200 p28 ecu.
stock 345cc injectors

Plenty of more mods but these should would be the only factors for a TB. since they only modify the air streem and such


i have a stock 60mm.. thinking about going 70mm (which is same size as intake piping) and porting the Euro-R manifold bigger. (currently 64mm)..

here is a pic of my polishing work inside the plenum..



thanx guys....

 

woah.. nice.. i would say 70 mm

 

70mm Throttle Body and an SMSP Header.

Suprdave

 

well since no SMSP headers are currently available.. and are delayed... i'm kinda gonna have to push that one out of the way for now... at 70mm should i mill a restrictor plate to test on the dyno if a smaller one would be best..

also i read that 70mm is too big etc ? usually is 70mm the plate size entry or opening ?

i'd like to get some feedback on those mesurements also.. if possible..

 

We're running a 70mm T/B on our motor. We haven't tuned the motor yet, so not sure about the gain or loss with the T/B. We might try using a smaller one to do a comparison.

 

We are using a 70mm on our current H22 build with crower 2's and type-s pistons. That seems to be the normal for builds hoping to break 200whp.

You should know that there should be SOME roughness to the inside of the intake plenum to allow for better air/fuel atomization...at least this is what I've always been told and practiced.

 

i'll let the dyno sheet tell all for the polishing

if 70mm tb's are suggested what are the usuall opening behing the throttlebplate and also what size is the plate..

because even if the opening is 70mm.. i'm sure differnt companys make different tapers.. i'm curious on them...

plate size VS exit side... and so forth.. or if you don't know just post what specs you guys TB has

 

Check out http://www.ericksracing.com he has a 70-68 mm tapered t/b that would work very well with your application. Good luck.

 

Our TB is 70 -> 67 port matched to the IM, but we're using a modified USDM IM.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">We are using a 70mm on our current H22 build with crower 2's and type-s pistons. That seems to be the normal for builds hoping to break 200whp.

You should know that there should be SOME roughness to the inside of the intake plenum to allow for better air/fuel atomization...at least this is what I've always been told and practiced.</TD></TR></TABLE>

Fuel doesn't atomize in the Intake Plenum...unless you were firing injectors inside the plenum. It's true, that intake PORTS shouldn't be polished to a mirror finish because it helps the fuel\air come out of suspension.

It might not make power tho, but not for the reason you described.

Suprdave