hi guys i am currently building a forged 2.5 with rcm internals,sti3 heads uprated rcm springs and retainers vernier pulleys, gas flowed heads,i am going to be running a twisted gt35 A.R 0.82 aiming for 500+
i have hurd that sti3 cams would do the job, but if i was going to do cams witch ones.?

what are the specs for the dh22s?

seen these

Inlet duration : 264 deg ; Exhaust duration : 264 deg
Inlet valve lift : .352"/8.94mm ; Exhaust valve lift : .352"/8.94mm

if no good what sort of duration etc should i be looking for?

cheers tone

 

You could try the Jun setup

Inlet duration : 272 deg ; Exhaust duration : 272 deg
Inlet valve lift : 10.3mm ; Exhaust valve lift : 10.3mm

That is what I will be running on my car fairly soon and I will be moving from sti 3 cams.

Banny

 

We have sent a set of STi4 cams to Piper and had them reground to 285 profile, we instantly picked up 35hp even with a drop in boost from 1.8 to 1.65.
We were very close making 492bhp on the stock cams, but you could tell from the curve that something was raining it in, it just seemed to flat line but hold on to the power for 2500rpm. I will try and dig out the graphs and pm them to you Tone.

 

The last time we ran an engine with a spec similar to that (Phase 1.5 heads, DH22s, 2.5 litre built engine, GT35R etc) it made 595BHP and 621lb/ft on a Schenck cell (engine dyno, so actual not estimated flywheel figures). In a classic fitted with a JDM DCCD 6 speed gearbox we could get wheelspin in 5th . I dare say it's a good setup

 

where would be the best place to buy cams? mark@ lateral ?

cheers for the info guys