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does any1 no where the wires go on the tps?? what sort of tps is the piazza switched or variable.

Pretty sure its switched.

Nick-

It is definitely switched. three positions basically from memory, open, closed and halfway, you should get a manual, its not much money for all the answers and test data you need

There's the variable output too going to the turbo computer..

Don't put an MT-8 on a Piazza they're far worse than the standard computer.

MT was fuel only, LT was fuel/ign right? Id like to see someone wire up a Delco 808 or MegaSquirt upto the 4ZC1. Throw on a Rodeo EFI manifold, bigger injectors, 4ZE1 Dizzy....ill shutup now.

Nick-

no mt-8 is fuel and spark the mt-4 in fuel only
dont see how its worse than standard piazza computer

the difference between mt and lt is the lt's laptop ready and the mt is not but an mt can be upgraded to suit a laptop top anyway other than that no difference

You might as well chuck a webber carby on instead. It's about on par with a 1970's spec EFI system with points ignition.. They don't even have closed loop mode! Trying setting the timing is hard with it varying by 5 degrees each time around. The crap throttle response it isn't too good for drivability. Then after all that it uses way more fuel than a standard computer.

my brother has 1 in his laser with bpt motor runs great

Bet it doesn't run as good as standard.
I just don't see the point in paying 1k for a 70's spec ECU when you could get a Megasquirt for 1/4 of that, or a Delco from the wreckers plus Kalmaker for the same price..

geees there not that bad.. where do you get 70's spec? at least it FUEL and SPARK

I'd rather solid mechanical timing advance with knock control than electronic advance with no knock control that has less accuracy than points ignition. 70's spec comes from EFI with no closed loop.. Ok maybe 80's spec before they started using unleaded.

They have their place though.. On drag rotaries that only have to run for 10 seconds at a time, and at full throttle the whole time.

Anyway I guess one good thing is because it's old school it supports switch TPS. So you don't have to adapt another one on.

GeminiCoupe wrote:MT was fuel only, LT was fuel/ign right? Id like to see someone wire up a Delco 808 or MegaSquirt upto the 4ZC1. Throw on a Rodeo EFI manifold, bigger injectors, 4ZE1 Dizzy....ill shutup now.

Nick-

has been done... in a gemini

haha, "pizza" on the ozgemini.com forums has a 4ZC1-t with a t3/4 turbo and rodeo inlet with custom plenum, front mount and wired up to megasquirt with e1 dizzy...

Yep i know, which is why i suggested someone do it

Nick-