Engberg

Hey
I got a 94 prelude with h22 engine, but need to chance the block, but can i use the h22a5 block, or are there diffrences that makes it difficult? i know the a2 is a closed deck, and the a5 is open, but besides off that? are they the same?
regards jonas

Kronn 98SH

All H22 blocks are pretty much the same, minus open-deck vs closed-deck. The only other big difference is ATTS or no ATTS. Do you have a base model? Is the A5 coming from a VTi or a VTi-S? This is important stuff.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

Rasmusm

If it was from a VTI-S shouldnt the engine code, h22a5 be diffrent?
Tho I think its from a regular VTI, im Engberg's IRL friend btw..

But what would be so diffrent from vti and vti-s?

Kronn 98SH

VTi = no ATTS
VTi-S = has ATTS

So the blocks are different, yet both still H22A5s.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

Kronn 98SH

Where are you from?

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

Rasmusm

We're from denmark
Another question whats that ATTS?

Kronn 98SH

Active Torque Transfer System. It's sorta like an electrical LSD. You can google it or just read the ATTS info guide already stickied in the 5G section.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

Engberg

hmm im not sure if it is for atts, i dont think sso but not sure, is there a easy way to tell when i look at the block?
also i saw they didn't use the some gearbox, can there be any diffrences there?

Kronn 98SH

ATTS models and their non-ATTS counterparts have the same gearing. For example, The VTi and the VTi-S have the same gearing. The USDM Base and USDM Type SH have the same gearing. The JDM SiR S-spec and the JDM Type-S have the same gearing.

As for telling the difference just by looking at the block, read this:

5th Gens - Base vs. SH - Honda-Tech

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold