Tuner Can't Tune Car

[tdstuart]

Get rid of the car and start fresh. Seems there is history with the car and 2 extremely reputable TUNERS. 3 strikes and someone or something had to be out. In this case I think the car

I’ve thought about this many times haha. This car constantly tests me. If anything I’ve learned a ton about cars and the Mustang and coyote platform.

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[5.0_Lojos]

That's the positive for sure. Im crazy like that, I'd sell and start fresh. Still no guarantee. You are not FI? if your not and would be nice eventually, you are stuck till all this gets resolved.

 

[5.0_Lojos]

I thought Christine was a Plymouth?

what?

 

[CorvZ061]

I built the motor. From everything I’ve researched if timing was off even 1 tooth I should get a code and it should be noticeable.

Not saying I didn’t mess something up causing a loss in power but not really the point of this post.

I’m reading your post and can’t help but wonder if something is wrong with the engine, whether it be cam timing related or something else. The facts are, 2 different tuners have tried to tune it and neither have successfully done so, 1 second slower 60-130 isn’t successful for the same setup. There is a problem that needs to be fixed before it can be tuned successfully.

I know you said there was an issue between you and Wengerd, but he offered to try and help in this thread. It might not be a bad idea to have someone else look and see if they can help figure it out.

 

[tdstuart]

That's the positive for sure. Im crazy like that, I'd sell and start fresh. Still no guarantee. You are not FI? if your not and would be nice eventually, you are stuck till all this gets resolved.

Most of it is my fault and a little bad luck. Still waiting for the transmission to fail. It’s over 130k miles now.

 

[tdstuart]

I’m reading your post and can’t help but wonder if something is wrong with the engine, whether it be cam timing related or something else. The facts are, 2 different tuners have tried to tune it and neither have successfully done so, 1 second slower 60-130 isn’t successful for the same setup. There is a problem that needs to be fixed before it can be tuned successfully.

I know you said there was an issue between you and Wengerd, but he offered to try and help in this thread. It might not be a bad idea to have someone else look and see if they can help figure it out.

Lund claims there tune is fine haha. The other guys tune is way off and it’s not because of any issue the car is having. You don’t get the car thinking it’s making 900hp n/a on 91 because of a phaser lagging issue.

i am talking to Wengerd and we’ll see what happens.

 

[5.0_Lojos]

Most of it is my fault and a little bad luck. Still waiting for the transmission to fail. It’s over 130k miles now.

We all go thru this. Regretfully, all this is a hobby/money pit or whatever else you wanna call it.

 

[tdstuart]

We all go thru this. Regretfully, all this is a hobby/money pit or whatever else you wanna call it.

Yep. Before I got this car I knew nothing about cars. Now I can pull the engine in a day without looking at any manuals. Was it worth all the money? Idk haha. Especially the 2nd engine blowing up, could have done without that one.

 

[robvas]

I built the motor. From everything I’ve researched if timing was off even 1 tooth I should get a code and it should be noticeable.

You don't have to be off a tooth to have it degreed off one way or the other. Maybe it's set advanced a bit which would reduce high rpm power? 100% sure the springs are good etc?

 

[CorvZ061]

Lund claims there tune is fine haha. The other guys tune is way off and it’s not because of any issue the car is having. You don’t get the car thinking it’s making 900hp n/a on 91 because of a phaser lagging issue.

i am talking to Wengerd and we’ll see what happens.

I’m sure they do, the tune probably is fine. I’m saying it sounds like a mechanical issue and not a tune issue, at least on Lund’s side. When you rebuilt the engine, did anything change with the engine? If not and it runs a second slower with the same tune then it’s not a tune issue.

 

[tdstuart]

I’m sure they do, the tune probably is fine. I’m saying it sounds like a mechanical issue and not a tune issue, at least on Lund’s side. When you rebuilt the engine, did anything change with the engine? If not and it runs a second slower with the same tune then it’s not a tune issue.

Yes I agree.

Only thing I changed was it got new parts. New shortblock and new cam phasers. Heads got cleaned. Can't think of anything else that changed. Its exactly the same setup.

 

[tdstuart]

You don't have to be off a tooth to have it degreed off one way or the other. Maybe it's set advanced a bit which would reduce high rpm power? 100% sure the springs are good etc?

Heads got taken apart and cleaned by a shop Ive used before so I hope the springs would be good.

Not sure how I could tell if the cams are off besides pulling it all apart and doing it again and seeing if it goes any faster.

 

[robvas]

Not sure how I could tell if the cams are off besides pulling it all apart and doing it again and seeing if it goes any faster.

I mean at some point, it might come down to that.

Now that I think about it for a second, I don't think the cams being advanced would lose that much power. Think about it this way, you said there's a 1 second difference in 60-130, right?

That's 50-60hp. I remember back in the 96-98 Cobra days, guys would retard their cams and at best gain 10-15hp (depending on how the car came from the factory).

Compression/leakdown tests? 100% sure it's the same compression ratio? It could be a combination of things, if it's just one thing wrong that's causing that much horsepower loss it's something pretty bad.

Do you have a dyno sheet of the current setup?

 

[furdfan2018]

Well that's frustrating. Keep us updated on how it goes with Wengerd.

 

[SheepDog]

Heads got taken apart and cleaned by a shop Ive used before so I hope the springs would be good.

Not sure how I could tell if the cams are off besides pulling it all apart and doing it again and seeing if it goes any faster.

A compression test would tell you

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