Just thought I'd post my recent trip to the track. Specs are, ebay gt45, 50mm wastegate, single 4" to twin 3" exhaust, microtech EFI, water/meth, 40 thou 186 block, 202 dish pistons, 5.9:1 compression, blue rods with arp bolts, stockish blue head, stock valves, 238/248 solid cam, trimatic, 23spline UC torana diff. 34psi, 28 degrees timing. I know its alot of boost for the outcome but it is a 186 holden with virtually stock ports etc . https://www.youtube.com/watch?v=uTqjeeFbfcE https://www.youtube.com/watch?v=ngd5WPkV81A https://www.youtube.com/watch?v=zera2FqcGNo Cheers Some original photos have not been recovered yet.

Nice work! got any pics of the engine setup

Heres a video Cheers https://www.youtube.com/watch?v=uQwSBOn0hmU Some original photos have not been recovered yet.

wow! is that a typo ? or is it 5.9 comp ?

thats cool, well done! cheers darren

Nah mate no typo, started off at 8.2:1 then 7.0:1 then 6.1:1 and finally 5.9:1, each time it made more power even though with more boost, but when you've got a crap flowing head, you need to be able to run high boost to make the power on pump 95-98 and still have reasonable timing values. When it was blow thru carb it did 123mph on 30psi on straight caltex 98 with 25 degrees timing. Drivability is really not that bad lol. Cheers

133 mph is strong

How does it run such hi boost from that size turbz on pump 95-98? I'm tripping out Very impressive

Low compression , at 8.2:1 I could only run 20psi and 14 degrees timing. Water/methanol helps also. Cheers Some original photos have not been recovered yet.

good job mate !!!!!

This is so cool! Saw it at the track last Saturday. Got a couple of Q's, is that the 69mm compressor GT45 with 1.05 rear housing? What gears and convertor are you running?

Cheers guys, its got a 4500rpm convertor in it, the converter was built for me when the 202 and gt35r was in it, so its a bit tight. If I sit on the footbrake for about 8 seconds it will make 4psi @ around 3500rpm. Its got 3.08 gears and is near on the limiter (7000rpm) going through the traps. Going 9 inch soon with 3.00 gears to take some rpms off it. Yeah its the 69mm/1.05 rear ebay $380 landed turbo . Cheers Some original photos have not been recovered yet.

l think your a bit behind the time l had a mate with a 202 lj running 10.3 20 yrs ago with a nothing fancey engine and it was a carbie fed aswell with a to4b

It did 123mph with a carby without water/meth. My engine is far from fancy lol. Still has rust marks in the bores from sitting under my bench for 10 years lol. Sorry mate but how is 133mph from a 186 behind the times? Not saying its the fastest around but I thought it was a fair achievement. Cheers

500+hp from a 186 is pretty damn good in my books! I don't care what year it is!

At 3000 pound its around 550-570hp at the flywheel . Cheers mate Some original photos have not been recovered yet.

Quote: Originally Posted by rb3torana [View Post] Cheers guys, its got a 4500rpm convertor in it, the converter was built for me when the 202 and gt35r was in it, so its a bit tight. If I sit on the footbrake for about 8 seconds it will make 4psi @ around 3500rpm. Its got 3.08 gears and is near on the limiter (7000rpm) going through the traps. Going 9 inch soon with 3.00 gears to take some rpms off it. Yeah its the 69mm/1.05 rear ebay $380 landed turbo . Cheers how did you get it $380 landed?, man i always see them for 200-300, but once freighted end up being $600 ish, start to touch borgy territory then I see they do them in a 76mm and a 80mm now aswell Pigsy that came across a bit harsh..lol cheers darren Some original photos have not been recovered yet.

Yeah they were on special lol, I could've got one for $279 free postage but they had no stock. You can still get them off ebay for $319+$100 postage. Cheers

I have a mate that bought one for $315 when they were advertising free postage. All of a sudden they've whacked on $100 for postage Some original photos have not been recovered yet.

Yeah its abit of a, 'the luck of draw situation'. But I guess $450 its still not bad lol.