F20A Turbo Manifold

[s0hc]

Hi folks, I currently own a supercharged D16 vtec but my next project is a turbo F20A4 Accord. The cars on here are awesome

Ive searched loads but there doesnt appear to be too much info on turbo exhaust manifolds suited to the F20A4?

Please can someone shed some light on which turbo manifold will fit the F20A4?

Thanks in advance folks

[pixelmonkey]

i'm thinking the compression is too high for the f20a4 to work with a turbo without it blowing motor. i remember reading a few post about a rebuild with different pistons for lower compression solved the problem, but it seems like the price vs power gain isnt worth it.

someone else might jump in here and prove me wrong though

chris<pixelmonkey>

[s0hc]

checked some more and the exhaust gaskets for the H23 and F20A4 share the same part number, could prove useful for a FAQ

Chris, I think the CR is 9.5:1, should be fine for low boost and be good for off boost.

[arrozburner]

if its the same as the h23, then its the same as the f22 in which case, you could use the stock turbo manifold off a dsm (4g63) and go with the dsm turbo setup

[92ex]

checked some more and the exhaust gaskets for the H23 and F20A4 share the same part number, could prove useful for a FAQ

Chris, I think the CR is 9.5:1, should be fine for low boost and be good for off boost.

for most that was common knowledge. f20a is fine to boost, just be careful, dont spike, and tune well. Boosted f20s- alex ex(blown ringland), 91accordexr33(blown motor), and whoever turbo'd that carbed f20. Go with something besides a 14b and you should be good

[s0hc]

noticed the DSM setups but im in the UK and ive never seen a DSM manifold for sale or in the scrap yards.

Log manifolds and T3, T25 and T28's are alot easier to get hold of which should make for a good setup.

Whats a safe amount of psi for a daily driver on an F20(a4)?

[Alex EX]

8 psi is safe on the f20, just make sure to tune it well before you drive it or you'll blow a ringland just like me (i was running 11psi for 2 days untuned and started smoking.)

[s0hc]

nice one cheers alex - what are your plans for F20 and boost now?

Do you know of any numbers / links for dynos / setups running 8psi on a stock F20 sohc motor?

[s0hc]

edit: just realised CR is 9:1 on a SOHC, so its 9.5:1 for DOHC - sorted.

[Alex EX]

well i dynoed at 194whp/198wtq with a stock fuel pump, 2.5 inch exhaust with cat, stock 14b at 9psi. so im guessing you'll be around there.. im building my motor now for a 15 psi daily driver.. about 250whp and then i'll be happy (i hope)

[Haccord21]

Ive got an F20a right now in my accord. The guy i just bought my car off of was preping the F20a for the turbo. So im looking to finish it off and see if he would be able to help me out since hes already preped the motor for it. But does anyone know were i could get the Dsm turbo?? Thanks

[92BLACKEX]

try ebay, they might have it but its probly gonna be used and who knows how much play the turbo has or what condition it is.

[92ex]

our classifieds, dsmtrader.com, dsm forums, ebay, junkyards, or go to where the cars hang out and talk to the dsm guys...they always know a friend of a friend

[s0hc]

thanks for the info folks