just went to the dyno what do you guys think?

[ertech]

just went to the dyno what do you guys think?
89 930 with k27-7200 , BB exhaust , andial I/C and 1 bar spring.
do you think I really need a adjustable WUR with this graph .
Thanks

[JBL930]

You're going lean above 4750rpms, you need to adjust your WUR for more fuel, you can play with it yourself or send it to Brian Leask to make it adjustable. Or of course use the DigiWUR or try the same aproach as StuP. Whatever you decide do not drive that engine hard above that RPM level otherwise you'll be in trouble

[DonE]

Actually, that's not bad for a stock unit - I've seen much worse (mine). It does need a bit more fuel >5,000 rpm.

[RarlyL8]

+3 on the lean AFR's up top. Not horrible but not optimal. Typical tune is <12.2:1 at the top end.
What surprizes me is the torque curve. I would expect a higher torque number at a much lower rpm with your setup.

[ertech]

so you think I am safe for a few bursts once in a while?

[RarlyL8]

Cannot speculate on level of harm as there are many variables. I would at least turn down the boost or short shift @ 5000rpm until you can get the AFR's dialed in a little better.

[JBL930]

I dread to think where your AFR's are at 6500rpm, i holed a piston at under 13.0 to 1, my hand held LM-1 was reading 12.something when the engine let go so it was under 13. Fair to say i may have had a bad injector making it lean on one cylinder, but you have no way of knowing whether yours are doing the same. It's deamed safe for CIS if you are running between mid 11's to very low 12's. For the sake of a few hundred $'s get your WUR sent of to Brian, tell him your exact spec and he'll send it back almost ready to go, another dyno session and a few tweeks will get you all sorted.
Would be a great idea to get make sure you are getting even flow from each injector too, read this thread for info Meter head flow adjustment question??

[ertech]

will do
Thanks