jlayton
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| posted on 6/6/15 at 10:03 AM |
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r1 engine trouble
hi could anyone recommend a engine builder around the west midlands area for a Yamaha r1 5pw engine. I turbo'd my car and was set up properly by
bdq and been running great, until the other day it thorugh 1 of the half moon rocker cover rubbers open like a door and let some oil out. then after
that its running on 3 cylinders and breathing really heavy through the crankcase breather  my plugs are all dry so would it be possibly piston
rings? or a burnt valve?
cheers
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CosKev3
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| posted on 6/6/15 at 11:28 AM |
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Have you done slides mod you were asking about?
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gaz_gaz
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| posted on 6/6/15 at 11:43 AM |
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Speak to Andy at AB Performance.
He's just built a turbo blade motor for a customer!
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jlayton
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| posted on 6/6/15 at 11:51 AM |
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no didn't get chance to do the slide mod it wasn't essential anyhow how, i just wanted to see if I could get some more bhp out of it
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yeah I phoned ab performance but no answer will keep trying
thanks
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TimC
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| posted on 6/6/15 at 11:51 AM |
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Maybe try Race Techniques in Cheltenham.
I've not used them mind you.
Alternative a bit further away who I really rate is RK Performance in Whitecroft, Forest of Dean
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mark chandler
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| posted on 6/6/15 at 04:12 PM |
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That's a shame, a valve would not make it breath heavily so expect piston damage
Best check the ignition side of things incase you have to much advance
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jlayton
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| posted on 7/6/15 at 05:32 PM |
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Pulled the engine today and took head off melted the edges of 3 pistons but on the plus side the bores are in very good shape. Which is a bonus,
I'm now going to go forged. Rods and pistons but do I go 9:1 or 10:1 compression?? Will run 9_10 psi max and will buy an ignition module and ape
adjustable cam sprockets. Would that be reliabke. My fueling is powercomander 3 and rising rate fpr 1:1 and I'l add ignition module
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roohunter
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| posted on 28/6/15 at 05:22 PM |
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What boost where you running before it melted ?
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