The new headers would just let my mods breathe better than the factory ones did, its still a night and day difference in tube length. Like I said putting the old tuning file on the car made a huge difference she drives great now, just have no clue where she stands. I am going to try to get on a dynojet now that I have a clean datalog.Maybe it's in the tune... Maybe the engine is choked with your current modification list... I'd be curious to see the dyno sheets to see just where it loses power.
Your timing is impeccable. I am actually going to the local dynojet tomorrow. I am finally settled in here in Minnesota, and will post the results. I can tell you that she pulls amazing, and I am happy with the car 100%. I would go ahead and buy the headers if my numbers are good. I am also going to the track here in MN soon, so you guys can see those results as well.Any update on this? Ever solve any issues and re-dyno?
Shaun's old thread has me really considering the 1 5/8" kookd mig lengths as well.
Awesome. I'm anxious to see the results, and how the power curves show.Your timing is impeccable. I am actually going to the local dynojet tomorrow. I am finally settled in here in Minnesota, and will post the results. I can tell you that she pulls amazing, and I am happy with the car 100%. I would go ahead and buy the headers if my numbers are good. I am also going to the track here in MN soon, so you guys can see those results as well.
I am very hopeful that my cobra jet maniold + L&M intake cams + 1 5/8 headers full exhaust + E85 results is a power combo across the board. Maybe everything works together in the high and low/mid range.Awesome. I'm anxious to see the results, and how the power curves show.
I work in a performance shop and 99% of coyotes are either stock header and 3" straight pipe, or 1 7/8" header and full, crazy loud 3" exhaust. I'm not happy with the typical power curve. Very soft down low.
I'm planning a much quieter and nicer sounding setup focused on low/midrange.
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I am very hopeful that my cobra jet maniold + L&M intake cams + 1 5/8 headers full exhaust + E85 results in a power combo across the board. Maybe everything works together in the high and low/mid range.
Do you have some sort of swap going on? That is not the normal exhaust pipingI hope it does. I'm planning a very similar setup, only with 2.5" mid pipe and 2 3/4" o/a pipes. The only 3" will be the actual muffler
Do you have some sort of swap going on? That is not the normal exhaust piping
Good thinking, that might have an impact on exhaust velocity, which is an advantage of the 1 5/8 headers according to Shaun!No swap, but I really want to use the programme mid pipe, and it only comes in 2.5" then expands to 2.75 for the o/a pipes.
I think it will be plenty for a stock intake car. I feel like 3" is overkill.
Thanks for everything you said! Yeah the dyno operator said he seemed to think my power is on par with a CJ car with headers and stock cams. It doesn't matter if the cams aren't matched, my exhaust cams are the boss 302s which are practically on par with stock coyote exhaust cams (they don't really add a whole lot, another 2mm lift). I think these numbers prove the exhaust cams are not the baby cobra jets.In my honest opinion, you really seem to be right about where I would expect with your mods. Your cams aren't very aggressive, nor are they a matched set.
Thanks! This aint over. I think I nailed an interview for a business analyst position today, which is what I just graduated school for, so if I get the job I plan on going apeshit with car building.Good luck Jumpmaster.
A few things:Unfortunately, I am still down a ton of power for the amount of mods I have. I am at a loss. The highest she put out today was 436, and ignore the red pull because that was the dyno operator accidently pulling in 4th gear.
It is plain to see the motor pulls until about 6000, and then stops making power.