H22A7 cams in H22A

rrobis · Post by **rrobis** » Tue May 16, 2017 7:34 am

Hi chaps
I've got a possibility to get my hands on h22a7 cams. The question is - is it worth putting them into 4th gen h22a? Or better to scout for type-s cams?

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Post by **Vtecmec** » Tue May 16, 2017 8:11 am

The type s and r cams are the same. And I have some in mine, yes the are worth it.

Post by **Merlin** » Tue May 16, 2017 11:00 am

Vtecmec wrote:The type s and r cams are the same.

As are H22a8 cams

rrobis · Post by **rrobis** » Wed May 17, 2017 8:30 pm

Ok, thanks guys!
Will it make any difference if I'm currently running stock engine with chipped P28 and non-standard map without remapping ecu?
I know it's a long shot, but in theory..?

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Post by **DaveyBa8** » Thu May 18, 2017 10:58 am

More air in, more gases out. Should see a difference in top end. I've a set to go into mine now this week also.

Post by **Thebusofwoe** » Sat May 20, 2017 11:02 pm

Yes its a good improvement. I have type S cams in my H22A2 and along with some other basic bolt on mods my 182bhp UK spec engine is now making 213bhp and that's still on the stock ECU and map.

LIE · Post by **LIE** » Fri Feb 09, 2024 9:02 pm

I’ll wake up an old topic.
Does anyone have the detailed specs for both, h22a and a7/8 cams?

And is this mod plug and play? Or something else is needed as springs etc from atr?

Post by **vanzep** » Sat Feb 10, 2024 10:22 am

plug and play unless you have a tunable ecu which will need a remap to get the best out of them.

ive run a7 cams in H22a but had an issue where the old hydraulic lmas were sticking and was advised to upgrade the valve train to sprung lmas.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun Feb 11, 2024 4:05 pm

LIE wrote: ↑
Fri Feb 09, 2024 9:02 pm
Does anyone have the detailed specs for both, h22a and a7/8 cams?

Are they listed in the OEM service manuals? (Don't have access to them to handz right now)

Post by **Drax** » Mon Feb 12, 2024 9:04 am

i measured 4 sets of cam lobes (likely done wrong knowing me) not that long ago with a digital vernier, so take these specs with a pinch of salt;
H22A2 cams 36.40
H22A8 cams 36.91
JUN cams 37.47
H22A cams 36.86
i need to re-measure them though.

Lude Generation