Early tuning dyno charts.
 

Long time since I've posted. Here is a copy of a recent dyno chart. We still have some additional tuning to do, but the motor is running well.

The 430WHP chart is at 16psi and the 540WHP chart is around 23psi. I don't have the datalogs yet, but know how many of you like to look at dyno charts. They don't really mean that much, but are a great tuning device. The dip at 3K is being tuned out, and there is more to be had. Zero knock counts and there was no correction input. The dyno is at aout 4,500 feet.

The mustang chart is also uncorrected and shows about a 12% difference between the two. The mustang and dynojet are housed in the same shop.


Comments from Dave who was tuning the car and was present at these particular dyno runs. I was not there.

Quote from Dave:

Currently it appears that everything is holding together very well even at these performance levels. On the Mustang dyno we had to lower tire pressures and strap it down very tightly as it was just spinning when it came on boost. The dynojet has a crosscut pattern on the drum that hooks up really well but is a bit hard on tires. You now have a good pair of scuffed rear tires. Yes, even at this altitude it will fry the tires on the dyno. All these dyno runs have corresponding data logs on the Electromotive software showing everything.

I have been involved with the high end boost tuning and this engine is strong and appears almost bullet proof. It is showing 0 knocks and really is a conservative tune at both the low boost and high boost settings. Coolant and oil temps are very nice, egt temps are even cooler than we anticipated. The engine oil temps have gotten up to the point where it opens up the thermostat then never higher. (around 230ish.) The thermostatic fan on the right oil cooler has never even turned on.

I hope you can see the differences on how the boost came on from slightly different loading. If we really loaded up the dyno the turbo would look like it came on very early which I believe is what XXXXXXX did with their chart. You can also see from their chart that 458rwhp was all that turbo had to give. Dyno curves are fun to look at but without actually comparing the different vehicles on the same dyno with the same settings you really have nothing to compare. You can move the curve around to make it look how you would like pretty easily.

Dave Lomas

Motorsport Inc.

Fantastic news George! Great to hear that you're almost back in the car. Those results look very promising on conservative tune. It's going to be one of the all time 951s of which you can be very proud having gone through a long and at times painful process. Keep it coming!

Great results George that will be one fun street car when your done.

Thanks Patrick. The 2.7 head on this motor is only port-matched using a stock cam with hydraulic lifters. Stock 951 exhaust valves. The goal of this motor is to have a reliable motor with a few hundred HP above stock using pump gas. Hard to do, but I love these cars when well sorted and reliable.

The drop at higher RPM's is the head design. I'm good with this, as the fuel cut begins at 6500rpm and soft closes at 6700 rpm.

Dave tells me the car is nuts fast at 16psi, and I have the ability to override the WG to 20psi on the low boost tune. The high boost setting is to be used with race gas only, but Dave told me my drivetrain will have potential issues if I utilize race tires at these tq levels.

I'll pick it up late May or early June. My schedule is keeping me busy.

George

looks really strong

The Red Dragon lives again! Nice George. :thumbup:

Very cool. I'm sure you'll be happy to be driving it once again.

I'll take it to Tucson test and tune quarter mile fun runs. I'll share the results this spring.

George

Right on!!

What turbo are you running?

Looks great George! Bet you can't wait to take it out for a ride.

Precision Billett.

Very nice!!
Do you know the egt (it was mentioned that it was low)?

nice

So George, make sure you get some video of inside and outside the Red Dragon as soon as possible.
We need to see and hear this Beast!!

Also, did he make any mention of the intake?