COSV111 rev limit issue
Posted: Mon Aug 15, 2011 6:43 pm
Can anyone see why this car wont rev past 7000 rpm?Am i missing something? It worked at 6500 changed it to 7000 worked fine changed to 7500 still 7000,any ideas?
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COSV111 rev limit issue
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Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 7:09 pm
dont know about your rev limit problems but that bin is looking farked up undo the blm limit changes and turn closed loop off if you are having issues setting the blm's like that is probably why the whole ve table is weird and its cammed yet you havnt added any timing where its really needed or you are hiding all you real tables LOL
Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 7:22 pm
Injectors cut right on 7500RPM for me, might need to invest in some bigger injectors though 
Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 7:57 pm
no to worried about the tune just the rev limit? Its repeatable on the dyno everytime drop it to 6500 and thats where it stays make it seven it revs to seven make it 7500 and it only revs to 7000 this engine will need to run to 8000 so ive gotta get it sorted?
Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 7:59 pm
read VL400's post above, your maxing your injectors!
look at the injector duty cycle in the logs, ideally you wont to go to 85% max
look at the injector duty cycle in the logs, ideally you wont to go to 85% max
Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 8:07 pm
post up a log? there are a few factors involved, will be able to help you out more with a log to look at.
Re: COSV111 rev limit issue
Posted: Mon Aug 15, 2011 9:15 pm
Will post a log tommorrow its definately a hard cut tho wouldnt have thought the ecu would hard cut if the injectors were maxed?
Re: COSV111 rev limit issue
Posted: Tue Aug 16, 2011 5:54 am
What type of cam (solid, hydraulic) and what specs?
If you're spinning it to 8,000RPM sounds like a serious build.
yoda69
If you're spinning it to 8,000RPM sounds like a serious build.
yoda69
Re: COSV111 rev limit issue
Posted: Wed Aug 24, 2011 11:12 pm
Problem solved went i'n next morning and ran the car up 6800 rpm exactly with my hand on the throttle and air cleaner off rather than sitting on my ass i'n the car watching numbers( this has a four barrel t/body) the best case of valve bounce ever. To many dyno fumes the night before I think lol problem turns out to be a so called expert set up this roller cam with the wrong springs for the application wasting my and the customers time did a bit of checking and this combo was never gonna fly shame tho shoulda picked it up the night before when the far went rich not lean when it started to cut so it's cam out n start again for him . Will post up results when done but will be a tuff street n/a car if they ever get it right ( use the springs the manufacturer recommends folks not some forum guru)