"Cheap" powerfull H22?

Darkam · Post by **Darkam** » Fri Jan 30, 2015 3:17 am

Let's say I'm picking up a H22A5 5th gen and going with H23 crank, rods, Type S pistons, ATR head. Cams will not be the same as H22A5 ones, but can I avoid doing a tune if I use an ATR ECU in this 5th gen?

Post by **Merlin** » Fri Jan 30, 2015 9:02 am

You'd have to ask Drax why he's gone for a 55mm crank. It is not absolutely necessary to use any other crank than the one that is already in your engine, for the type of power you have been talking about. My ~270bhp engine in my 4th gen uses the 50mm crank.

Darkam wrote:H23 crank, rods, Type S pistons, ATR head.

If you wanted all that you would be as well as buying a 99+ UK 5th gen with the H22a8. It would give the same results.

Post by **4thgenphil** » Fri Jan 30, 2015 10:43 am

H23 crank is 50mm aswell

Post by **Merlin** » Fri Jan 30, 2015 10:59 am

Ahh, why use it then? Is it stroking?

Post by **4thgenphil** » Fri Jan 30, 2015 11:03 am

Merlin wrote:Ahh, why use it then? Is it stroking?

Yes amd it bumps up the compression dependant on what pistons you use.

Its a massive headache and not a cheap option it seems to be if you want to do it some it last more than 5 miles.

Type s pistons will probably jobby them selves aswell due tontje compression and you may have p2v clearance issues not sure in p2h clearances

Post by **NafemanNathan** » Fri Jan 30, 2015 11:28 am

Are peoples getting confused between H23a Vtec and H23a1 Non-Vtec cranks here?

Post by **4thgenphil** » Fri Jan 30, 2015 12:36 pm

NafemanNathan wrote:Are peoples getting confused between H23a Vtec and H23a1 Non-Vtec cranks here?

Looks like it, not sure if the f22 crank is a 50 or 55 though

Post by **NafemanNathan** » Fri Jan 30, 2015 12:42 pm

Which f22?

Darkam · Post by **Darkam** » Fri Jan 30, 2015 12:46 pm

Take a look here : http://www.importatlanta.com/forums/hal ... beast.html

With H23 (A1?) Crank and rods + Type S pistons the CR is increased. And as 4thgenphil says, the clearence beetween piston and valves will be really small. Better go with a never skimmed head and a thiker headgasket.

Merlin : I've thinked about it, but if I buy another Lude this is to drive it on little roads, and there is no point to have a RHD car to do this beacause overtaking will be a big problem. But it would be way cheaper for sure and simple for sure.

Another compatibility problem I've not already check : flywheel and clutch with the H23 crank and a U2Q7 gearbox.

Post by **Merlin** » Fri Jan 30, 2015 1:28 pm

Darkam wrote:Merlin : I've thinked about it, but if I buy another Lude this is to drive it on little roads, and there is no point to have a RHD car to do this beacause overtaking will be a big problem. But it would be way cheaper for sure and simple for sure.

You can get the H22a8 5th gen in Europe too.