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hi im trying to get a graph up... umm the tuner reckoned he couldnt stop it knocking at 18psi no matter wat he did... thats y its only 16, thats weired aye.. its alittle laggy

Well id be inclined to run a Bosch fuel pump, and run the std manifold. Pinging at 18psi seems a little strange...did he suggest the reson why it was pinging..

he said i should get some plugs a heat range colder...

are u talking about a standard exhaust manifold?

they just cheap weld n grind cams, standard cam gears..

a strange thing is the cas if nearly fully turned anti clockwise (Advanced?)

I would most definitely be checking the cam timing. Ensure it has been setup correctly and then drop a set of adj cam gears on it and see how u go.

How is the power curve when it wants to ping? Does it want to only ping at a certian rpm range? i.e in my case 4000rpm

I have had valve float issues where i bumped boost up and it would always want to ping at 4000rpm + the power curve would go flat from then onwards.

The last I highly doubt. But a few things to look at.

Hey RB power...what is your car like to drive on the streets?

tail happy?

Do you have any suspension/brake mods to match, 238rwkw is alot to stop with standard brakes :woot::blink:

Edited by bigtim11
just quickly....

whats everyone got their rev limiter set at??

since i got the highflow and having full boost at 4000rpm i hit the rev limiter alot!!!

i just dont feel power loss to change gear

street, 6800rpm

track 7500rpm

roy uses a nice rev limit

just quickly....

whats everyone got their rev limiter set at??

since i got the highflow and having full boost at 4000rpm i hit the rev limiter alot!!!

i just dont feel power loss to change gear

LOL...i keep mine at around 8,300rpm. I dont rev 3rd and 4th that hard, but i sure do rev 1st and 2nd gear out to make sure that when i grab the next cog i have as many revs on board as possible. The difference between 4,000rpm and 5,000rpm on my engine is proabably about 100rwkws so worth revving out the lower gears to fall into the meat of the power curve

If your turbo can flow the air, the std cams dotn seem to fall off too abruptly....mine still feels as though its pullign pretty well at 8,000rpm. i thnk it makes about 210rwkws at thoe revs?!?!?!

got the same problem as roy, need to keep the revs nice and high to bypass the lag. mines set at 7500 and is still climbing rather well. cams would definately help but might look at raising it another 300 or so.

i was revving to 8.5 on the old motor before she went.

proly will take the rebuild to a max of 8.3, but this time round with uprated oilpump and valve springs to suit.

gotta remember that rb20's are short oil drive motors so the posibility to destroy the oil pump is very good at high rpms/hp.

Hey RB power...what is your car like to drive on the streets?

tail happy?

Do you have any suspension/brake mods to match, 238rwkw is alot to stop with standard brakes :O:)

hey it seams to be ok alittle loose...lol....stock brakes and suspension apart from lowered springs and drift pinapples lol

my revs are set a 7000 rpm

i was revving to 8.5 on the old motor before she went.

proly will take the rebuild to a max of 8.3, but this time round with uprated oilpump and valve springs to suit.

gotta remember that rb20's are short oil drive motors so the posibility to destroy the oil pump is very good at high rpms/hp.

what year was car? and how many km had it done before it let go?

also, were u driving it everyday at 8000+rpm?

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