Dyno Tuning is it worth it?

[86bluecobra]

Should i go and get my car setup at a shop? i have never had the thing tuned at a shop before. I'm using the stock jets that came in my 750 double pumper. is it worth the cash are their huge or at least modest gains to be had?

 

[srothfuss]

I think it's a good idea to see where you stand. Although, I would probably wait until I was all done with the car before I had the car straped to the Dyno.

Things like A/F ratio and avererage power can be learned to help you along the way.

 

[Michael Yount]

What gains there are to be had depend upon how far away from optimal you are. Some time spent on the dyno with the wide band a/f sensor hooked up will give you a better idea of what your combo is doing. If you're excessively rich or lean, it can be improved upon. If your total timing is way off it can be improved upon. How much improvement? Won't know til you try.

However -- be sure your 'tuner' knows a thing or two about carbs -- most of the 'tuners' on the boards are guys who know how/have the equipment to burn a chip for an efi car. I'd guess the majority of them wouldn't know where to start OR have the proper jets to tune a carb car.

 

[Rick 91GT]

What gains there are to be had depend upon how far away from optimal you are. Some time spent on the dyno with the wide band a/f sensor hooked up will give you a better idea of what your combo is doing. If you're excessively rich or lean, it can be improved upon. If your total timing is way off it can be improved upon. How much improvement? Won't know til you try.

However -- be sure your 'tuner' knows a thing or two about carbs -- most of the 'tuners' on the boards are guys who know how/have the equipment to burn a chip for an efi car. I'd guess the majority of them wouldn't know where to start OR have the proper jets to tune a carb car.

Yeah I agree 100% with Mike, depends on how far off the combo is. I've picked up 1hp and I've picked up 70hp. Definitly find a guy who knows carbs, I have a few different dyno's in my area that I use and each has there own speciality, EFI, carb, mod motors, etc...

 

[Michael Yount]

....although given your times with the combo in your sig - I doubt you're gonna see any huge peak gains. Sounds like you have it dialed in pretty well already. Running 11.5's at 116 at 1700 ft. elevation with 2 people in the car -- well, I don't think you're gonna find 30HP with a jet change.

 

[N8Miller]

Like Mike YOunt said, your track times are pretty expectable for what ou have done. With a dyno tune, you might see gains in the single digits, but i doubt it would be much more.

 

[FordMuscle]

Since you run the car at the track frequently, you can effectively do your own tuning if you invest in a wide-band 02 meter, and possibly some data logging tools. The benefit to this approach is that you can tune whenever and as often as you want, or as your combination changes - rather than just the setup on dyno day. You'll also get to tune and obtain data under a real load condition, not simulated as on a dyno.


This article has more info:

http://www.fordmuscle.com/archives/2004/10/Innovate/index.php

 

[86bluecobra]

....although given your times with the combo in your sig - I doubt you're gonna see any huge peak gains. Sounds like you have it dialed in pretty well already. Running 11.5's at 116 at 1700 ft. elevation with 2 people in the car -- well, I don't think you're gonna find 30HP with a jet change.

Yes thank you i know it is a good time. Funny thing when i went to the track i was hoping for a 12.3 hoping. after i ran 11.5 i want 10.99. i wonder how close to 10's i would be at sea lvl.