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I am using a digital mm. The contact I am making is good. Its puzzling that I got it to do it once before but not again. I went and had a probe put in at my local mot place and he said it was a little rich if anything until he touched the throttle and then the 02 volume reading went too high.sorry I...

Hello all! So as the title suggests I'm getting strange readings when I connect my multimeter to the diagnostic port. With the -ve on ground and the +ve on Ox I should be seeing between 0.1v to 0.9v with quite a lot of fluctuating but I'm getting nothing! Also, when I try to test fuel trim I should ...

thanks for that bob! if this is the most important consideration then i will take care to get it spot on. im quite happy to turn the boost down as my ct20b is quite old and i don't want to push it until I've found the right turbo.

thanks buddy! that's put my mind to rest! it's my first forged build so im a little apprehensive.

thanks for that bob. only thing is my pistons arrived today!! while your here, am i doing the right thing sticking to a standard rev3 hg?

yeah I've used him over the years! top bloke!

aaah i see! i thought (stupidly) the standard hg was 1 mm!! so i guess i need to get a 1.4 mm hg.makes a bit more sense now. thanks buddy. now to source that gasket........tcb methinks!

yeah i read that thread too. it says with a 1mm gasket the c/r will be 9.0:1. for cp's. i didn't want to mention using a thicker head gasket because of what this thread said!!

hmmm. it seems a lot of people are using 8.0-8.5:1 on their builds. have i made a grievous error buying 9.0:1's? is anyone running the same c/r as I'll have? all advice is welcome guys! thanks!

he's only got 9.0:1's aswell !

hmmm. i didn't think of je! so is a 9.0:1 c/r way too high? i was thinking that i could just turn the boost down a little and let the mapper take care of the rest. im looking for reliability over anything else.

thanks guys! so where can i get cp's that are 86.5mm and 8.5:1? i couldn't find any anywhere!!! they are what i originally wanted but couldn't find in the UK.

hmmm. the plan has changed a little now due to availability. im now using cp piston with a c/r of 9.0:1! does anyone know how much I'll have to turn the boost down to stop it detting but still making nice power? should i be looking at a mister or water/meth injection ?

the intercooler is just a fleabay xspower .

thanks for the input guys! I will eventually get a bigger turbo but for now I just want to make sure that the engine is pretty bulletproof.

also i forgot to say its a rev 3 which has 540cc injectors!

thanks mate. At the moment im at 275bhp/298 lb/ft 18psi but thats without the forged build and the g3. is 300bhp roughly the max the ct20b will push out or could i eek a little more power with bigger injectors? its just that i want to keep the ct20b as i like how fast it spools. And im trying not to...

hello all. im in the middle of a build at the moment and was wondering what sort of bhp/torque figures i should be hitting (roughly). i have wossner 86.5 8.0:1 pistons, ct20b, acl's, HKS hi power(straight thru 3" custom), Apexi intake and a host of other support mods ( Walbro 225, new oil pump,...

thanks for that mate. im so sure people on here have done this. it may have been ashley or Pete at sbits. the search function is being a little weird on my phone.

hello peeps. sorry if this has been on here before but i can't seem to find it! i have a set of bc coilovers and was wondering what mods i have to do to make a tein edfc fit? also any info on where i could find a tein edfc would be handy!