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Just used that calculator and got 9.368480051747252 with my above specs put in. I found solution for mine. I made a calculator on excel spreadsheet similar to the one on that website which I have been using but has been coming up wrong (thus post) but if I use 2.5 instead of - 2.5 it comes up bang o...

Hi all. Just want to check I'm not going mad. Working comp ratios out and my math doesn't seem to add up. Stock comp ratio is meant to be 9.4:1 apparently. I've done 8.1cm bore 8.2cm head gasket bore 0.12cm crushed head gasket thickness 7.7cm stroke Pi 3.142 Piston deck clearance 0.05cm (Did deck he...

Finally sorted problem I think. I took the MBC off and just put hose into actuator from turbo. I also... re-calibrated actuator :whistle: (24inch minor adjustment bar and leverage). Drove car and boost comes in smoothly and maxes at approx 10psi now, phew. Engine light came on and car wouldnt boost ...

Ok update time. There is now a few mm clearance for the wastegate in the downpipe. I have put pipe back on and checked wastegate by applying air pressure to actuator and it goes through its full stroke of movement as it should. I took car out for test drive with high hopes and boost still won't come...

My immaculate (bodywork wise) Mk2 tintop turbo :mrgreen:. Bodywork and panels are in better shape than some I have seen a decade older. 1 bit of surface rust in boot under carpet but have cleaned and waxoiled it. Only paid £1200 3 months ago for it as well. http://www.imoc.co.uk/forums/garage.php?mo...

If the waste gate was jammed say half way open the boost would come in late and then overboost, when the rev went up Hadn't thought of that... could kill two problems with one stone :thumleft:. Measured clearance and the wastegate needs 22mm to open fully and the downpipe in the shallow bit caters ...

I checked re-circ valve and it is ok. closed as it is supposed to be and I can move it with my finger so i'll file that as ok... Any ideas as to fault?

At the right had side at the top of your down pipe photo you can see where the metal is in past the gasket, cut it back to the gasket line I did wonder about that bit as I noticed after I posted that the metal looks like it has caught something there. Ill take it to work tomorrow so I can attack it...

Just had a proper read through your posts. I had simuair idling/stalling ](*,) issues before I fitted my hks vpc (afm delete). For me the problem was the afm. I had to run the car with the afm screw all the way in or it would tick over at 300/400rpm or just stall :evil:. Other times my car acted li...

Oh I like the foot pump idea, I've just taken downpipe off so will do that later tonight since I can see all of regulator. I originally timed belt up to the marks on bearing caps then had to take belt off as water pump was leaking (had used blue silicone sealant) have now put toyota pump gasket on a...

When I drove the car home (3/4 way home before it overheated) It boosted smoothly and was progressive, at the moment it is jumpy boost like its on/off/on/off/ with foot on floor. It hesitates badly. It was however overbooting (20psi) on way home. I assumed the guy had the MBC wound up too high. Even...

Here are the wastegate pics taken from under the car.

I put a new cambelt on when Engine was rebuilt and the timing is bang on. dots on cam pulleys line up with marks on backplate and crank mark lines up with 0 degree mark on cam cover.I wound the engine over by hand approx 6-7 times and re-checked and it was still bang on. Belt was mega tight fit. I h...

The knock could be caused by it running like xxxx due to the other faults... or the sensor might have blown, or it might not be plugged in? :) Sensor defo plugged in. Are these mass type knock sensors or the more refined ones? If it is a mass type I will knock on the block with an extension and mul...

There were no codes set before test drive (I didn't however clear any either), I will clear codes and drive it again later. I have a toyosport 3inch system. I unbolted wastegate with rod still attached and if you push then pull on the rod you can hear the valve moving (open or close im not sure thou...

Why would the car boost at 20psi with the pipe straight from turbo outlet to wastegate with the VSV pipe blocked off? Thought the wastegate opened at 7psi? Could my wastegate be stuck open and then when turbo spools it shuts it creating high boost? Could the wastegate be damaged or working in revers...

Air intake temp sensor is in the AFM so those 2 will be linked. Coolant might still just be bleeding air out after the rebuild? I always used to get a bit of a bubbling noise when I turned the car off. The knock could be caused by it running like xxxx due to the other faults... or the sensor might ...

I replaced the coil last week as it had a crack down both sides. I thought that'd be the answer to my problem but no sadly not. didn't know it earthed through bracket. might copper grease the threads up to all coil and bracket bolts to aid earthing in a vauge hope it helps. And it was a Toyota coil...

Ok I cleaned the bracket up that the coil sits on as sure enough it was rusty as hell ,I also made a wire up and clamped it between the coil and the clean bracket. The other end of the wire I put under a bolt on the inlet manifold. This has made a HUGE difference! The car drives like crap still but ...

ignitor on rev 3 is different... not sure bout distributor.