Toyota 20v throttle bodies on B6.

[clubman7]

Well got the car tuned finally after getting it all up and running.
Car has a Microtech MT8 ecu that was running using the MAP sensor.
Tuning guy had a bit of trouble getting it running somoothly as the new cams and quads gave the ecu false vacuum readings throwing out the idle tune.
Ended up refitting the original Toyota TPS and tuning the engine from throttle position only.
Car now idles better than it did originally.
Power isn't quite what i hoped, but have a litle more too play with in cam timing yet.
Engine makes 115rwhp at 7500rpm.
No drop off in power and would keep making more power if the rev limit was higher.
Think maybe the cams are little too big?
Only given it a quick squirt and it pulls a bit harder after 5000rpm where it used to start to taper off.
See how it performs on the track.

[Hellmun]

Sounds like the rev limit is far too low. The tomei poncams which aren't very aggressive make power pasts 7500rpm I thought. If your removing head material for clearance your probaly looking for 8500rpm+ to use cams that big. Especially using quads....

You just need a balanced lightweight bottom end to use it.

[clubman7]

Do hydraulic lifters work over 7500?
Thought they would start to lose pressure.
Does a lightened bottom end mean new rods and crank?

[Hellmun]

I doubt HLA's would work that high either. From memory CT ran a very worked 1.6 in prod sports years ago. He'd have better advice to do with a 1.6. I think there's some old threads with details.

As far as bottom end goes I would leave the crank and do rods/pistons and have it balaced/knife edged. I'd be little worried about ancillaries at that point though. Not sure if you'd have to run underdrives. It's expensive but those sound like wild cams to make use of.

[clubman7]

After many little problems getting the car running, it finally got on the track at the weekend.
http://www.youtube.com/watch?v=oCTUwILt6-M
Car went well and sounds really tough with the big cams fitted.
Ended up having to fit a newer ECU and went with a used Autronic SMC.
Fully rewired the engine to suit the ECU and had it tuned at Benincas.
Joe did a really good job of iron out little faults and finding some errors i had made in the wiring .
Car idles quite well at about 1000rpm.
They got it making 160hp at the flywheel.
Car runs harder now and was o.8 seconds faster than my previous best time on the standard track at Bryant Park in Moe.
Been so long since i'd dríven it, sort of forgotten how to make it go fast.
More practice required.