DIFFRENCE BETWEEN 185-200BHP, GEN 5 LUDE

gup160 · Post by **gup160** » Thu Mar 15, 2012 1:47 pm

is there a great real of diffrence, clutch, gearbox ect? if any1 has both car specs that wud be great.

Post by **Merlin** » Thu Mar 15, 2012 2:11 pm

In the UK 5th gen the mechanical differences that give power is mainly down to pistons and cams, plus the throttle body is slightly larger.

H22a5 - 185bhp
10.1 compression ratio
60mm TB
Same cams as the H22a2 and the regular JDM H22a

H22a8 - 197bhp
11.1 compression ratio
62mm TB
Same cams as the Accord Type-R and Prelude Type-S
Short ratio gearbox (same as the ATR but without LSD)

The ECU's are different. For example the H22a8 uses a knock sensor.

Post by **NafemanNathan** » Thu Mar 15, 2012 2:19 pm

And of course different maps to run them.

Post by **Merlin** » Thu Mar 15, 2012 2:38 pm

There is other little differences such as different PS pumps, and I think the PAS cooler is different. But they arn't performance/power related.

Post by **Lude-dude** » Thu Mar 15, 2012 3:15 pm

exhaust differs, cant remember exactly how

Post by **Merlin** » Thu Mar 15, 2012 3:17 pm

The downpipe and CAT are longer but the mid pipe is shorter on the H22a8. The internal diameter is still the same though.

funkmasterjay · Post by **funkmasterjay** » Mon Mar 19, 2012 12:34 am

Which means, for a bolt on low pressure turbo conversion, the H22A5 is better.