MTL514

Hi everybody,

I just recently purchased a new engine for a current project Im working on. I want to swap a Japanese Prelude Type-S (H22A) into a 1997 Civic. I am aware that because of the ATTS I will not be using this transmission since it does not fit (with the module) into my engine bay. Instead I will be using a regular LSD transmission from a 1997 H22A. My concern is finding out if this is a REAL Type-S engine. It has a red valve cover and the ECU code matches to the Type-S but the intake manifold is what concerns me most. Did the Type-S come with a dual stage manifold like the regular H22 (IAB valve) or did it have a single stage only with shorter runners like an Integra Type-R? I have not yet checked the exact measurement of the throddle body but I know it should be 62mm instead of 60mm on the regular H22's. Can you tell me anything else so that I can determine if this is a real Type-S? What is the difference between the Prelude Type-S and the Prelude SIR? Someone told me I might have the Prelude SIR...



Modified by MTL514 at 2:06 PM 6/2/2005

A Blue Lude

The Type-S engine has the regular two-stage IM. It was the Euro-R accord that got the single stage manifold.
The Prelude SiR had a "normal" JDM H22A, with black valve cover, 10.6:1 CR, etc, etc.
There was a SiR S-spec as well. It got basically the same engine as the Type-S, except with a regular block casting and regular LSD transmission...no ATTS.

I'd guess that a Type-S engine would have "P5P" stamped in the places where a normal block would have "P5M" (like the differences between the H22A4s in the base and SH), but I'm not sure if that holds up for JDM ludes. Hopefully someone can tell you.

MTL514

Thank you for that, I didnt know about the Euro spec fact, very useful to know. So since I have a red valve cover , taking in cosideration what you told me it shouldn t be an SIR then I guess... unless the one that received thee Type S specs differed in valve color...
Any other input of course always greatly appreaciated so feel free to add pleaseeee, thanks!

Also what are the Spec's for the Prelude SIR?

MartBB6

*edited*


Modified by MartBB6 at 3:53 PM 6/2/2005

98vtec

y not just answer it here?

Vtec Type R

I can't really help you, but I just wanted to say hi to a fellow MTL Luder.

Looks like a pretty nice project you have going on.

MartBB6

Guess we are quite a few MTL luder

Mart

Dai_Ca_Vietnam_H22a4

You can tell when you put the parts in yourself, like my car.. Haha. Just kidding...