Dennisn
Well-Known Member
- Joined
- Apr 28, 2016
- Threads
- 20
- Messages
- 397
- Reaction score
- 132
- Location
- Chicagoland
- Vehicle(s)
- 16 gt
- Thread starter
- #1
Well after problems and more problems I believe I finally have the car running as it should. When I bought the aluminator I was talking with John at hellion, and after talking about my goals he said I'd most likely need valve springs. So not wanting to get on the dyno and have issues once I turned it up I had the livernois springs installed (at the recommendation of my tuner).
So while trying to get tuned had multiple issues. Would get random misfires at higher rpms (flashing check engine light). Power would drop off significantly after 6100 rpms and this was at low boost (10.5 lbs). After going thru everything tuners only advice was had a mechanical issue and To start looking at sensors/electrical. Now I had the same flashing check engine light with the old motor and setup and tuner tuned around it by disabling the misfire detection. This time around he was adamant about there being an issue with the car. I explained it's a new motor and besides the engine harness and ecm everything was new.
Also asked him about the power drop off on the dyno if he thought could be a valve spring issue and he said looked like it was just rich. Now we are talking 50-75 rwhp dropoff at 6100 rpm. That's huge if you ask me but what do I know right?
So at this point I figure I'd try a different tuner. Tuning went better and had no more misfire issues. Huh. After putting it on the dyno with the new tuner the same issue with power dropping off at 6100 rpm reared its ugly head. After telling him the springs I put in he immediately told me he thought that was the issue. Are you kidding me......... I put these springs in so I didn't have this problem.
So at the recommendation of new tuner and talking with Tim from mpr I bit the bullet and had the new Manley springs installed. Make first pull and pull is flat as could be at top. Had couple minor snafu's but the power dropping off was definatley resolved. Finished up the remote session and the following is where I stopped. Figuring I'm not gonna push my luck anymore.
Let me add this........ KEN BJONNES is the man. He is the new tuner and everything I've heard about him being the shit is spot on. I could not be happier with the switch to KEN BJONNES.
Now for the numbers............
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So while trying to get tuned had multiple issues. Would get random misfires at higher rpms (flashing check engine light). Power would drop off significantly after 6100 rpms and this was at low boost (10.5 lbs). After going thru everything tuners only advice was had a mechanical issue and To start looking at sensors/electrical. Now I had the same flashing check engine light with the old motor and setup and tuner tuned around it by disabling the misfire detection. This time around he was adamant about there being an issue with the car. I explained it's a new motor and besides the engine harness and ecm everything was new.
Also asked him about the power drop off on the dyno if he thought could be a valve spring issue and he said looked like it was just rich. Now we are talking 50-75 rwhp dropoff at 6100 rpm. That's huge if you ask me but what do I know right?
So at this point I figure I'd try a different tuner. Tuning went better and had no more misfire issues. Huh. After putting it on the dyno with the new tuner the same issue with power dropping off at 6100 rpm reared its ugly head. After telling him the springs I put in he immediately told me he thought that was the issue. Are you kidding me......... I put these springs in so I didn't have this problem.
So at the recommendation of new tuner and talking with Tim from mpr I bit the bullet and had the new Manley springs installed. Make first pull and pull is flat as could be at top. Had couple minor snafu's but the power dropping off was definatley resolved. Finished up the remote session and the following is where I stopped. Figuring I'm not gonna push my luck anymore.
Let me add this........ KEN BJONNES is the man. He is the new tuner and everything I've heard about him being the shit is spot on. I could not be happier with the switch to KEN BJONNES.
Now for the numbers............
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