Dyno run
- Thread starter qbnkiller
- Start date
qbnkiller
Conflaguration Specialist
Re: Dyno run
last year at Nats, I ran 12.13 @ 115 at 12-13# of boost. I was having boost controller issues, but obviously that's all fixed now!
Area under the corve with this is very nice. Very streetable turbo...very responsive. If Harmon ever gets his converter in and his Sy tuned, he'll chime in on his combo.
last year at Nats, I ran 12.13 @ 115 at 12-13# of boost. I was having boost controller issues, but obviously that's all fixed now!
Area under the corve with this is very nice. Very streetable turbo...very responsive. If Harmon ever gets his converter in and his Sy tuned, he'll chime in on his combo.
It's just a six
Super Member
Re: Dyno run
I have always said the L35's are decent heads much better than the stockers.
Main difference is the chamber & probably the short turn radius's,but port window size should be pretty close to the same.
When you are blowing/forcing air/fuel into an engine,it's not as criticle as when it is a normally aspirated engine.
Main problem with the stock heads ,is that the intake port window is too small & cannot pass enough air to make more serious power,unless you can port/mill out the high swirl intake port vane that's in the way.:tup:
On my Sy,nothing is wrong with the way it runs,,but,,if I needed a valve job or head gaskets,I would just do a set of L-35's,direct replacement & IMO,would not be giving up too much of anything as compared to the 1996 & up Vortec heads.:2cents:
I have always said the L35's are decent heads much better than the stockers.
Main difference is the chamber & probably the short turn radius's,but port window size should be pretty close to the same.
When you are blowing/forcing air/fuel into an engine,it's not as criticle as when it is a normally aspirated engine.
Main problem with the stock heads ,is that the intake port window is too small & cannot pass enough air to make more serious power,unless you can port/mill out the high swirl intake port vane that's in the way.:tup:
On my Sy,nothing is wrong with the way it runs,,but,,if I needed a valve job or head gaskets,I would just do a set of L-35's,direct replacement & IMO,would not be giving up too much of anything as compared to the 1996 & up Vortec heads.:2cents:
qbnkiller
Conflaguration Specialist
Re: Dyno run
Thanks guys...it's bee a long time coming now!
I have a date with a Mustang dyno tomorrow morning to really nail down the tune. As I mentioned earlier, this was just thrown up there. I only addressed fueling while I was on last weekend - never touched the timing from what I was working with on my street tuning. That is evident by the torque curve on the truck falling so quickly. Now I will be able to safely run it at the higher RPM areas and see what the truck wants.
I hope to turn the boost up a few more pounds and clean up the tune, and leave it there. The truck feels fantastic on the road. On the highway, you need to transition from 10%TPS to 12%TPS to get the turbo to jump on boost. It almost feels like its too small of a turbo, but once you start leaning on it, power does not drop off like a smaller unit would. Once I turn it up a little more, I think I may find that upper limit of airflow for this little T3 turbo (yes, it's still a little T-3 0.70 A/R turbo on the stock exhaust manifolds!). This is a little step up from the modified 20G turbo that Nolan sells (14cm housing, 61mm Garrett wheel), so performance will not be hit too badly. You could safely get away with a 2800-stall converter and be just fine.
If I could impart some wisdom to those of you who want to do something like this, I would tell you to do your research! Information is everywhere, but the right information is elusive sometimes. Learning to tune your truck will be the single most impressive mod you could do to your truck. Really get to know how to do that, listen to what your truck wants, and move slowly. I have learned that some of what I am doing is not the norm around here, but I am doing what the truck wants. I will, no doubt, find the limitations of this combo soon, but I hope it doesn't happen until after HC!
Thanks guys...it's bee a long time coming now!
I have a date with a Mustang dyno tomorrow morning to really nail down the tune. As I mentioned earlier, this was just thrown up there. I only addressed fueling while I was on last weekend - never touched the timing from what I was working with on my street tuning. That is evident by the torque curve on the truck falling so quickly. Now I will be able to safely run it at the higher RPM areas and see what the truck wants.
I hope to turn the boost up a few more pounds and clean up the tune, and leave it there. The truck feels fantastic on the road. On the highway, you need to transition from 10%TPS to 12%TPS to get the turbo to jump on boost. It almost feels like its too small of a turbo, but once you start leaning on it, power does not drop off like a smaller unit would. Once I turn it up a little more, I think I may find that upper limit of airflow for this little T3 turbo (yes, it's still a little T-3 0.70 A/R turbo on the stock exhaust manifolds!). This is a little step up from the modified 20G turbo that Nolan sells (14cm housing, 61mm Garrett wheel), so performance will not be hit too badly. You could safely get away with a 2800-stall converter and be just fine.
If I could impart some wisdom to those of you who want to do something like this, I would tell you to do your research! Information is everywhere, but the right information is elusive sometimes. Learning to tune your truck will be the single most impressive mod you could do to your truck. Really get to know how to do that, listen to what your truck wants, and move slowly. I have learned that some of what I am doing is not the norm around here, but I am doing what the truck wants. I will, no doubt, find the limitations of this combo soon, but I hope it doesn't happen until after HC!
red typhoon
Member
Re: Dyno run
it was great talking to you today. i hope we can talk again ,congt on the tunning, and the power you made .pump that sucker up let see what it can make.
it was great talking to you today. i hope we can talk again ,congt on the tunning, and the power you made .pump that sucker up let see what it can make.