H2b-eghatch

mines a H2B and i will soon be running Skunk2 VT with Pro1 cams with Type S pistons. OR should i ditch the 11.1 comp pistons and go with something with 11.5 comp?
B series tranny for sure can handle High RPM
ive seen threads that say "dnt be scared to rev ur H past 8k"

also
where does stock h22's with 11.1 & 11.5 comp redline?

with that said i know a dyno will tell but inputs will help.
thanks and i know i still have more knowledge to learn and more research to do so please dnt bash on me toooo hard

q16racer

Depends on ur intake and exhaust. If the engine cant breathe there is no point in turning the rpm.

1GPlusSH

some say 11.1 is high enough, but i don't mind the rough idle and irritability of a high compression motor. i'd go with the 11.5. since you're going to need a tune anyway with all of that, wait until you get on a dyno before you start raising your redline. you don't want to raise it and be running 8500+ with a bad a/f ratio.

and make sure your valvetrain can handle the revs you're going to throw at it. i'm not sure what our stock springs can handle before floating a valve

H2b-eghatch

ive got a good exhuaste system
also looking at logicmotorsports h2b header


thanks guys for the input keep them coming

and has anyone out there ran tuner springs on Pro cams?

turtleman321

dont use tuner springs and retainers. they arent made to handle the lift.

get pro series

H2b-eghatch

im leaning that way

q16racer

What are the specs on the header

H2b-eghatch

https://honda-tech.com/forums/showth...rts+h2b+header

nus_dogg

Just keep the redline where it's at. With 11.0:1 CR, you'll be making more power no matter what even with the redline you're at right now.

My H22 head is built with Skunk2 valvetrains & Pro2 cams, and I'm still at the same redline like before but with much more power than it was.

I was told to get the bottomend balanced if I want to rev higher.

PHDZINE

I rev my Euro R in my CD5 Accord to 9000RPM. Just have Jun cam and valve train with regular bolt ons.

preludeNApower

h22a 11.5 89mm crower 3 cam sk2valve train rev to 7700 (stock rev limit) still makin power, valve train can handle prolly 9000 (stock valve train i wouldnt go over 7700). Dyno pull is constantly increasing to 7700, no sign of dropping

1GPlusSH

then why wouldn't you raise your redline? seems like you're robbing yourself.

I rode with a guy that had an s2000. he was running high 16s at the track because everytime he got to VTEC, he shifted.

typemismatch

7700?? Why is stock fuel cut 8200 then?? Not to mention, stock VTEC crossover is 6800, so you're saying 900 RPMs of VTEC is all we should use?

I know we set crossover down to ~4500 after tuning, but 7700 on the stock valve train is unreasonable.

1GPlusSH

and his isn't stock...

q16racer

ive taken stock valvetrain to 8500 without valve float. this is of course on stock camshafts. wouldnt push USDM springs that high on anything other than non type S camshafts.

i also dont recommend revving that high unless you dont care and just want to get out of the hole quicker with a quicker 330'

typemismatch

Which makes it all that much more unreasonable, I would easily go to 8500 on the stock valve train with tuning. Assuming , of course, a fully stock valve train, cams, retainers, springs, everything. Without tuning it seems to die off up over 8K anyway.

With cams, retainers, springs, I would adjust your rev limit based on where you make power. With an upgraded valve train, there's no reason you can't at least go to 9000, but again, only if you're making power up there.

Basically I would say with the stock long block and some tuning, you can make power to 8500. The further you want to go, the more you need to modify to make sure it all holds together. Its a bit like chasing the dragon ... the more you want, the more you need to do.

When I tune my build on S2 valve train [springs, retainers, valves] and stock cams, I'll post some info.

My S2 valve train is all OEM sizes. I just did it for stronger pieces, dual valve springs, forged valves, Ti retainers.

Enzo15

Since when was the stock vtec crossover at 6800? Something must be wrong with yours since mine kicks in at 5000 or 5500.

preludeNApower

OBD1 h22 stock rev limit is 7700, and vtec hits at 5200 (stock). I have my vtec set to 5500 cause that gives me the best power curve.

The reason why i do not rev higher is because i need to spend the money to get new ecu/hondata

ShoofIsLudin

stock h22a, dirty K&N filter on a 2.75" short ram, stock exhaust, ebay header basemap'd p28. starting falling off around 7200

NirVTEC

8000 is a no brainer......My setup makes power till 8200 and I have revved past 8500 before. Can't see a reason you'd rev to 9000, but if its making power, keep revving I guess.......as a previous poster said, your in/out air is going to factor in. I have seen other JUN cam setup like mine start dying before 8000 with stock IMs and cloggy exhausts.


Typemismatch; 6800? 8200? The B16 forum is over there! ---->>>>>>

Rasmusm

I have 11.5:1 mahle pistons skunk2 pro2 cams, eagle rods, fully skunk2 valvetrain.
Hytech replica header 2.5" exhaust with 3" apexi ws2, Aem v2 air filter, stock intake mani + tb. My engine peaks at ~8000-8100 and limiter is at 8400
max nm is at ~4000
tuned with eCtune on p28