Performance Autoworks are 10mins from me & look after my ITR.
Rich is THE man to speak to regarding H22 tuning & specs. He is the absolute authority on them in the UK
Setting the base ignition timing is obviously a simple case of jumping the service connector & turning the distributor so the idle ignition advance is within the factory range (16 +/- 2 degs on my B18.
The factory ECU has built in maps for the fuelling & ignition that are pre-programmed. These...
Have found with mine that inserts in all 3 torque mounts but leaving the uppers stock OEM has removed all traces of engine movement but hasn’t increased vibration to an unacceptable (for daily) level.
Car feels direct, tight & positive without being harsh
Car is still running spot on.
Air con now deleted including lightweight JDM torque bracket swap new NSF torque mount & running without a spare wheel/gubbins too. All in all about -35kgs
Ignition timing checked today & running bang on 18degs BTDC at idle.
As much as factory spec allows but...
Well the rear mount insert is done & WOW- what a difference.
I didn’t think it would make much difference over the 2 inserts already fitted but how wrong I was.
Front end feels super-tight, better throttle response, better damped & the engine feels an integral solid part of the chassis now...
Car still on top form. Off to the bodyshop soon for a couple of minor fettles.
Aside from that I might fit my rear motor mount insert at some point & get some new OEM copy mats. After that il get the wheels refurbed
Nice to own an original one tbh. So so few left nowadays in the UK
The difference (if any) is so minimal as to make no meaningful difference to performance...
JDM ITRs were rated at 200ps/197bhp. I've never seen any higher quoted figures than that
Another vote for timing here- run my DC2 @ 18degs advance (book spec is 14-18). Always run it religiously on VPower so no issues with pinking etc
Definitely feels a bit peppier for it.
147atw would certainly be a ballpark figure. Work on adding 25-30hp to a wheel figure as a decent stab at a...