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So just did a pull on a Mustang dyno this morning. The car has the Edelbrock stage 2 E Force on Edelbrocks tune. Only other mod is a Katech ported throttle body. It put down 519hp 509tq to the wheels on 9lbs of boost. It was rich on the pull with AFR in the low 11s
I'm olanning on putting it on a Dynojet in the Spring to get some better numbers..lol
****videos below****
Last edited by BlueDevilZ51; Dec 14, 2017 at 07:02 AM.
getting the same setup done on my GS at Redline but not using the Eforce tune. They are going to tune it. All I have is headers, no cats and akra axle back exhaust. Lets see what numbers it comes up with
St. Jude Donor '11-'12-'13-'14-'15-'16-'17-'18-'19-'20-'21
Seems a little low, but it could be the dyno. Is it an auto? What was your baseline HP before the install? I was at 411 before and 540 after. Stage 1 M7.
Seems a little low, but it could be the dyno. Is it an auto? What was your baseline HP before the install? I was at 411 before and 540 after. Stage 1 M7.
What does your badge say on the side of your car?
Not sure if you understand this was done on a "loaded dyno" - Mustang dyno on average about 12% less then a dynojet dyno. So the 519whp on this Mustang Dyno would be around 581whp on a Dynojet... Edelbrock rates the stage 2 at 660hp at the crank.
Last edited by BlueDevilZ51; Dec 14, 2017 at 07:04 AM.
That's not a typical TVS boost curve. By the looks of it, the dyno operator didn't go WOT until toward the end of the run. May not be WOT even then. Either that or you have some serious belt slip going on. With a 3.25" pulley, you should have more boost than that all the way through the run. Especially with stock exhaust. It should be over 10psi all the way through...unless the dyno you're using is located up in the clouds (high altitude) somewhere. Even then the boost curve should be basically flat. Not rising with rpm.
Edelbrock rates the stage 2, 3.25" pulley for 8lbs of boost- the car made 9 lbs on that pull. He did have some issues with the tires spinning on the roller not the belt slipping.. it was 40 degrees.. boost curve looks normal to me, it builds boost as RPMs rise, you can hear him rollinto the throttle in the video above.
Last edited by BlueDevilZ51; Dec 14, 2017 at 08:41 AM.
I don't think your numbers are "bad". Just don't understand the atypical boost curve. A TVS pumps the same amount of air in relation to motor size no matter the rpm. Therefore, boost shouldn't vary much all the way through the rpm range.
I did see where the Eforce comes equipped with an underdriven crank pulley and that would explain the lower max boost.
Every TVS I've owned (three) had a flat boost curve. Last one made 664 rwhp on a max of 10 psi. That max boost occurred at 3500 rpm. Everywhere else along the curve, it was at 9.5psi to 10psi. Others I've owned made less, but the boost curve was always flat.
Just to be clear, none of those graphs above include a graph of boost. Just HP and TQ. Your HP and TQ lines look totally normal to me. The bottom line (maroon) on your dyno sheet is your boost curve. That's the one that has me puzzled. Looks somewhat like you'd expect it to look if you had a centrifugal supercharger on your Vette. Not the flat line you'd expect from a TVS blower.
getting the same setup done on my GS at Redline but not using the Eforce tune. They are going to tune it. All I have is headers, no cats and akra axle back exhaust. Lets see what numbers it comes up with
Hows it holding up? I intsalled the Edelbrock on my GS with canned tune but have been paranoid for it to pop. Haven't seen anyone report a blown engine from this set up though. Any input?
Hows it holding up? I intsalled the Edelbrock on my GS with canned tune but have been paranoid for it to pop. Haven't seen anyone report a blown engine from this set up though. Any input?
Not sure how many times you are going to ask the same question only to get the same answer . The HP gain on canned tune is nowhere near the power level that would cause a cracked piston , The tune is so conservative....... you are nowhere near the edge in which they blow . Also , Roots type blowers heat soak bad with causes the ECM to pull timing ...making less power Heat and detonation are the enemies of LT 1 , there is not enought ring clearance and you end up breaking a ring land . This does not happen until you go north of 600 HP and there are plenty of guys running north of that with METH injection
If you blow the motor , which there is always a chance , it would be caused by something going wrong like bad gas , something that was going bad before the blower like a bearing ... etc if it bothers you so much then take it off and put it back to stock Stop worrying and just enjoy driving it . Heck I have so many pulls on my car I have lost track
Not sure how many times you are going to ask the same question only to get the same answer . The HP gain on canned tune is nowhere near the power level that would cause a cracked piston , The tune is so conservative....... you are nowhere near the edge in which they blow . Also , Roots type blowers heat soak bad with causes the ECM to pull timing ...making less power Heat and detonation are the enemies of LT 1 , there is not enought ring clearance and you end up breaking a ring land . This does not happen until you go north of 600 HP and there are plenty of guys running north of that with METH injection
If you blow the motor , which there is always a chance , it would be caused by something going wrong like bad gas , something that was going bad before the blower like a bearing ... etc if it bothers you so much then take it off and put it back to stock Stop worrying and just enjoy driving it . Heck I have so many pulls on my car I have lost track
Edelbrock E Force, Mustang Dyno Pull
