I just want to know if is possible run a set of TWM itbs on the street on my EG civic with the H-22 engine.

My street/strip engine combo is:
H-22 Sleeved block (89 mm)
Pauter H-23 Rods
Wiseco 12.0:1 (89 mm)
Polished P-13 Head (Street Polished)
Ferrea valvetrain (Std size Valves, Racing Springs and Ti Retainers)
Jun Cams
Euro Accord Type R Intake
Holley 68mm
Jun 4-2-1 Headers
Jun ECU
RC-440 Injectors
AEM V-2
Magnecor Wires, NCK V plus -8-
MSD SCi

A friend of mine has several racign parts for this motor, including the TWM set (50 mm), ERICKS racing headers and 4.76 differential for this engine. I want to use this set, but some people says that I could be a trouble on the street.

I want to extract the most whp possible and be a rocket on the street...

 

with tunning they will run fien on the street ..i made a set form gsxr 1000 and got them to run ok with out a wide band ..so with dyno time it shouldnt be a problem

plus youve got great mods and there shouldnt be a problem ..if you ever wnat o sell the cams let me knwo

 

I Forgot that my crank/rod configuration has 95mm of stroke.

I talk with Javier Gutierrez of JG Engine Dynamics and he told me that the P-13 Head don't have a good flow head, so he offers me the short custom made intake for this motor that overflows the ITB's, you think that is possible and it would be in the 450.00. I Want to be in the 250whp route but streetable........

What do you think?

 

you're kidding me, right? i've heard that the H-series is one of the best flowing heads stock from the factory. i'd check some more into that if i were you.

 

From my experience I would not put TWM itbs on a street car. Youe Euro manifold is great. We have made 250hp to the wheels with a set up that was really mild. 88mm bore, stock stroke, sleeved, port & polished head and skunk2 stage II cams. But the key here was the F.A.S.T. computer. Great set-up man

 

The P-13 head does not flow as well as the B series engine, I talk with JG, Mark Brauning (NOPI ALL MOTOR CHAMP with H series motor). To let this head flow, you have to do a good port work and do some oversize valves to achieve a decent CFM.

 

Thanks Franklyn,

Thats intreresting, because some people says that the Euro does not work; the JDM intake system was far superior. Other thing with my JUN cam combo, I would be able to knock the 250whp instead of the Skunk 2 cams.

I can assume that the TWM can extract more whp, but what is the fealing of the TWM on the street and can be put it or tuned for it. I want that my vtec kicks hard and sounds awesome....

Thanks a lot.

 

The most I've ever seen a B-series head flow with square ports was 309@.500 lift measured at 28" of H20. But my H-series head flows more then that. How could a b-series head flow more then an H-series when you have the advantage of a bigger intake valve. Yes porting will benefit. Talk to Joe@Alaniz. Hope your motor makes some serious power.

 

Franklyn,

I've seen more than 310 on B series engine, A good friend of mine bought an engine at JG with 315whp and 202ft/lb. This engine is a B-18B block stroked and bored to a 2.2 liters. The portwork of his head is in the 315cfm with 13.8mm of lift (0.543). This setup is the one of Leslie Durst (9 seconds Purple CRX).

My head are more to a normal head than a polished, because was more poliched close to be as stock. For this mattre I was thinking in the TWM for more air to my engine than the Euro.

What do you think?

 

315 CFm @.543 thats similiar to 309@.500. If you don't have the flow on your heads to comphensate for the amount of air you are bringing in. The individuals will not do anything for you, if you want for the sake of looking pretty. I think its a waste of money and you should put that money else where. Good luck man.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jery76 &raquo;</TD></TR><TR><TD CLASS="quote">The P-13 head does not flow as well as the B series engine, I talk with JG, Mark Brauning (NOPI ALL MOTOR CHAMP with H series motor). To let this head flow, you have to do a good port work and do some oversize valves to achieve a decent CFM.</TD></TR></TABLE>

Actually prelude heads flow really well, better than b-series heads, not sure of the numbers but i remember seeing a flow chart of a stock head and i was impressed by just how well they flow. Its the intake manfold that really restricts it from breathing.

Also isn't thier a guy with a 2.4l h22 motor in a accord making something like 250whp on 12:1 compression?

 

Ok, I said about the flow of the P-13 head with some of the gurus of the portwork and they said that this head would not flow well. What do you think about this Euro Intake and the TWM for the street?

 

Hey, Jery76 I think you should use the Euro manifold and port match to the heads. Use the money you didn't spend on other stuff