Datalogging spark advance question
02-07-2019, 06:16 PM
#11
Senior Member
02-08-2019, 10:54 AM
#12
Senior Member
Car we had that flowed 53 lb/min on the dyno made 430'ish whp. It's a low reading dyno so it's a fair number but....
(53 * 10).85 = 450 hp
So when you get this result, you can be confident that this is probably what this car makes on something like a dynojet that doesn't read as low as the dyno we use. It's a pretty close estimate.
(53 * 10).85 = 450 hp
So when you get this result, you can be confident that this is probably what this car makes on something like a dynojet that doesn't read as low as the dyno we use. It's a pretty close estimate.
02-08-2019, 11:00 AM
#13
Senior Member
Thread Starter
Originally Posted by w00t692
Car we had that flowed 53 lb/min on the dyno made 430'ish whp. It's a low reading dyno so it's a fair number but....
(53 * 10).85 = 450 hp
So when you get this result, you can be confident that this is probably what this car makes on something like a dynojet that doesn't read as low as the dyno we use. It's a pretty close estimate.
(53 * 10).85 = 450 hp
So when you get this result, you can be confident that this is probably what this car makes on something like a dynojet that doesn't read as low as the dyno we use. It's a pretty close estimate.
02-13-2019, 01:10 PM
#14
Senior Member
Thread Starter
Sorry for the double post, as I just made a separate thread. Just thought I'd post in here because I had a few guys give good insight. Went to the dyno and it put down 492hp/562tq
02-18-2019, 05:54 PM
#15
Senior Member
Thread Starter
Just thought I'd follow up on this as I've hit the dyno and done some logging. So right at about 6350 RPM, I was making 373 hp to the wheels, and my maf flow rate at the same rpm was 43.9... 439x.85 = 373. So this equation definitely rang true for me. Was done on dynojet fwiw.
02-18-2019, 09:27 PM
#17
Senior Member
Thread Starter
Originally Posted by BadCon
You figure out that MAF issue?
02-20-2019, 07:54 AM
#18
Senior Member
Thread Starter
What RPM should I be shifting at both NA and with nitrous while at the track? I did some more logging yesterday while in Drive(not locking in 3rd or 4th) and noticed it's shifting at about 6900 at WOT. My assumption is with the gt cams and boss intake I should be shifting higher. Somewhere around 7400-7500? Any suggestions are appreciated. This was with my PRX tune. No nitrous.
Last edited by blue5.0; 02-20-2019 at 08:07 AM. Reason: Edit
02-20-2019, 12:31 PM
#19
Senior Member
When we tuned a 13 truck recently with fbo, 18 f150 manifold and PMAS intake it liked shifting around 6500 max. I think 6900 is probably a 7k commanded shift that is just shifting a little early. With your mods i'd totally think a 7500 would be where you'd wanna be at. At the very least 7500ish in 1st and 2nd gear and then lower in the later gears unless it forces you to shift again when you don't want to.
02-20-2019, 01:26 PM
#20
Senior Member
Thread Starter
Originally Posted by w00t692
When we tuned a 13 truck recently with fbo, 18 f150 manifold and PMAS intake it liked shifting around 6500 max. I think 6900 is probably a 7k commanded shift that is just shifting a little early. With your mods i'd totally think a 7500 would be where you'd wanna be at. At the very least 7500ish in 1st and 2nd gear and then lower in the later gears unless it forces you to shift again when you don't want to.
