Dyno'd the 951... any guesses?
04-06-2015, 07:05 PM
#1
Nordschleife Master
Thread Starter
Dyno'd the 951... any guesses?
Low mile 2.5L (~5k on fresh rebuild). DBB T04E 50-trim. 3" exhaust, no cat, Magnaflow muffler. M-Tune. 14.5psi. Pump fuel. Dynojet.
Guesses?
Guesses?
04-06-2015, 07:11 PM
#2
Addict
Rennlist Member
Rennlist Member
300whp
04-06-2015, 09:51 PM
#4
Rennlist Member
278whp
04-07-2015, 12:02 AM
#6
Nordschleife Master
Thread Starter
Very close 
. 275hp, 300tq.
The dyno chart is weird, they've got the rpm wrong. The chart shows it shutting down at 5800 but he ran it to the limiter 6600. I logged it and boost fell closer to 14.0 over 5500 and it got fat on the mixture (11.7 range) so I'm betting with a little more tuning can probably get it closer to 300.
But I'm happy. Just a number. Car runs great. Sat door to door with a new 5.0 Mustang (with at least a cat-back on it) through 3rd gear the other day. Good enough for me.
. 275hp, 300tq.The dyno chart is weird, they've got the rpm wrong. The chart shows it shutting down at 5800 but he ran it to the limiter 6600. I logged it and boost fell closer to 14.0 over 5500 and it got fat on the mixture (11.7 range) so I'm betting with a little more tuning can probably get it closer to 300.
But I'm happy. Just a number. Car runs great. Sat door to door with a new 5.0 Mustang (with at least a cat-back on it) through 3rd gear the other day. Good enough for me.
04-07-2015, 12:53 AM
#7
Rennlist Member
I was allowing for a following wind. :-)
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04-07-2015, 10:14 AM
#8
Rennlist Member
Very close . 275hp, 300tq.
The dyno chart is weird, they've got the rpm wrong. The chart shows it shutting down at 5800 but he ran it to the limiter 6600. I logged it and boost fell closer to 14.0 over 5500 and it got fat on the mixture (11.7 range) so I'm betting with a little more tuning can probably get it closer to 300.
But I'm happy. Just a number. Car runs great. Sat door to door with a new 5.0 Mustang (with at least a cat-back on it) through 3rd gear the other day. Good enough for me.
. 275hp, 300tq.The dyno chart is weird, they've got the rpm wrong. The chart shows it shutting down at 5800 but he ran it to the limiter 6600. I logged it and boost fell closer to 14.0 over 5500 and it got fat on the mixture (11.7 range) so I'm betting with a little more tuning can probably get it closer to 300.
But I'm happy. Just a number. Car runs great. Sat door to door with a new 5.0 Mustang (with at least a cat-back on it) through 3rd gear the other day. Good enough for me.
What kind of dyno?
04-08-2015, 04:15 PM
#11
Quit Smokin'
Rennlist Member
Rennlist Member
What were your AFRs looking like?
Curious why only 14 psi? I would think the T04 would be efficient quite a bit higher than that. You're running basically the same setup I have and as soon as I get my updated chip I'm going to head to the dyno. My car runs and spools great, but I figured I'd run closer to 16-17 when I get it dialed in. Maybe I wont be so brave when it comes time to turn the dial
Curious why only 14 psi? I would think the T04 would be efficient quite a bit higher than that. You're running basically the same setup I have and as soon as I get my updated chip I'm going to head to the dyno. My car runs and spools great, but I figured I'd run closer to 16-17 when I get it dialed in. Maybe I wont be so brave when it comes time to turn the dial
04-08-2015, 05:07 PM
#12
Nordschleife Master
Thread Starter
Yeah I know this turbo has the sweet spot in the 16-18 range. This exact turbo put down 350rw at 18psi on E85 (I bought this turbo from refresh951 back when he was still a 2.5L).
E85 is hard to find by me so I only run pump (93). Plus I need the darned thing to stay together and be reliable... so I keep the boost turned down. I know... I'm a wimp.
I just took another look at the logs... AFR's aren't as fat as I initially thought. They hold in the 12.0-12.1 range up until ~5500 when it starts to get progressively richer as the revs climb, ending at 11.3 by 6600. I'll probably lean it out a little more up top.
E85 is hard to find by me so I only run pump (93). Plus I need the darned thing to stay together and be reliable... so I keep the boost turned down. I know... I'm a wimp.
I just took another look at the logs... AFR's aren't as fat as I initially thought. They hold in the 12.0-12.1 range up until ~5500 when it starts to get progressively richer as the revs climb, ending at 11.3 by 6600. I'll probably lean it out a little more up top.
04-09-2015, 04:39 AM
#15
Burning Brakes
If RPM is incorrect on the chart then the HP calculations would probably be off as well?
FWIW, I recall doing a few 20 PSI E85 pulls with that turbo and didn't see any boost taper up to redline.
FWIW, I recall doing a few 20 PSI E85 pulls with that turbo and didn't see any boost taper up to redline.