a20a4 engine tuning

smithyy21 · Post by **smithyy21** » Tue May 05, 2015 7:21 pm

Hi everyone anything I can do to the a20a4 engine to Make it a bit Faster or is it easier and cheaper to do a engine conversion? If so what's the easiest engine to swap into it?

Post by **RattyMcClelland** » Tue May 05, 2015 7:36 pm

Is this for your 4th gen?
If so then its an F20a4.
Do an engine swap. H22 will drop straight in with the same driveshafts and gearbox.

smithyy21 · Post by **smithyy21** » Tue May 05, 2015 7:39 pm

Yeh for my 4th Gen it's says a20a4 on my block though

Post by **RattyMcClelland** » Tue May 05, 2015 7:49 pm

Will its impossible since the A20a4 was in the 2nd Hen. Are you sure its an A not an F?

F20a4 is the 2.0i 133bhp SOHC from the UK Prelude.

smithyy21 · Post by **smithyy21** » Tue May 05, 2015 7:55 pm

I need to investigate this haha pretty sure it was a a not F

smithyy21 · Post by **smithyy21** » Tue May 05, 2015 7:58 pm

Ok it was a dirty F lol, so it's easier to just stick a h22 in her what would I need engine loom, engine and ecu?

Post by **RattyMcClelland** » Tue May 05, 2015 8:34 pm

smithyy21 wrote:Ok it was a dirty F lol, so it's easier to just stick a h22 in her what would I need engine loom, engine and ecu?

Not 100% certain but you will need a h22 ecu and potentially the loom for vtec operation.
gearbox and drive shafts are the same but you might want a closer ratio box from a h22 as the f20a4s box has a long final drive .

Then I drop straight in. Same engine mounts. Might need the exhaust or at least the header and collector.

bennyboy · Post by **bennyboy** » Tue May 05, 2015 8:41 pm

Brakes are bigger on the VTEC ludes too, so you'd probably be best to upgrade yours while you're at it.

Crazy_C · Post by **Crazy_C** » Tue May 05, 2015 9:32 pm

I got excited when I saw this, thinking someone else was tuning an A20A4 engine but I was let down

H22 conversion is the easiest way to go. If your car is a UK spec one, get a UK spec H22 ECU (the JDM ecu is different). You might be lucky and find a car in a breakers with a H22 and M2B4 LSD box as well

From memory, the loom will be the same other than the addition of the wiring for VTEC which is simple enough really. It's been a few years since I've done a H22 swap though.

smithyy21 · Post by **smithyy21** » Wed May 06, 2015 10:05 pm

Ok cheers everyone gonna keep a eye out now for a engine

Lude Generation

a20a4 engine tuning

a20a4 engine tuning

Re: a20a4 engine tuning