ZL1 - Highest 100% bone stock RWHP ?

[BlackinBlack]

Originally Posted by hognutz

Now that motors are SAE rated the maximum variation is less than you see in all these dyno numbers. That points to one very big issue. dyno's don't read the same so they are not a true measure of real HP. they can really only show you a delta.

the same car that reads 522 on one dyno could read 495 on another dyno.

any number above the 520 range has to almost be mathmatically wrong. 520whp would only be 10% loss. most of the time drivetrain loss is more like 12-15% for a manual. then 15-18% auto.

that 550hp number is 100% dyno error.

That is why I don't put much faith in dyno numbers other than to show a delta (before and after) or they could show just a glaring problem.

you car is not going to magically gain 50hp with no mods though.

Originally Posted by alex70olds

Exactly! Nice post.

Good post.

I normally use the base line to figure out the dyno's loss. So for the 542.9 RWHP run with WCF I would figure 580 divided by 542.9 or a ratio of 1.068 (6.8% driveline/dyno loss). So the modded run of 612.1 RWHP would be 612.1 times 1.068 = 653.72 HP at the crank. So to me the baseline gives you the ratio to figure out the modded crank HP. This is how I have always done it as I feel it is more accurate than always using the default 1.15 for a manual which would equal 703.9 HP on this car.

[tnspd]

2012 Auto 488 RWHP.......fastest 1/4 mile time 11.77!

[emailZL1]

Just got mine, bone stock except for intake, 523rwph sae corrected

[Blownfogger540]

im told dyno jet numbers show high any info on that ?

[SecondZ28]

Originally Posted by Blownfogger540

im told dyno jet numbers show high any info on that ?

Typically, yes they will read higher than a Mustang dyno

[DrkPhx]

I've always felt Dynojets are more accurate when compared to track numbers. Without a doubt they are more consistent from dyno to dyno. I've dyno'd mine on different days (similar weather), different dynos (both Dynojet 248's) and the SAE corrected numbers were within a couple of hp. Regardless of what type of dyno you use, stick to the same one for true back to back comparisons when modding. Just my 02.

[VRZL113]

Originally Posted by DrkPhx

I've always felt Dynojets are more accurate when compared to track numbers. Without a doubt they are more consistent from dyno to dyno. I've dyno'd mine on different days (similar weather), different dynos (both Dynojet 248's) and the SAE corrected numbers were within a couple of hp. Regardless of what type of dyno you use, stick to the same one for true back to back comparisons when modding. Just my 02.

100% agree with you!

I can't stand when people post numbers and say it was on a "low reading dyno".... low?? Relative to what?? Lol

They use that excuse when they are not satisfied with the results of their car.

[perfucto]

Originally Posted by JFWJR179

Please post dyno results of your highest RWHP - 100% bone stock !
Zero mods !
No lying/cheating !

Been a long time since we last spoke. I think I sold you my original silver 5 spoke ZL1 wheels. Well mine is far from stock, 416 with a Whipple. 925 rwhp 862 rwtq.

[CasperZL1]

literally shuts the post down with those numbers lol

[big dave]

Dyno numbers are great... but mean little if the driver can't drive. Mine made 490 on a chilly day, and ran 11.59 in even colder weather. It doesn't mean mine is faster or makes more power than any other Z, I just take advantage of nature's power adder... negative da. It does still take some skill to launch a car on a cold track on street tires, but if I can do it, anyone can.

[13BlackBettyZL1]

457 on mustang dyno at 5000 ft

[Seabiz]

I was 524 rwhp/ 512 tq , with 6k miles on my 2013 right after I purchased it

[Little Walter]

Originally Posted by perfucto

Been a long time since we last spoke. I think I sold you my original silver 5 spoke ZL1 wheels. Well mine is far from stock, 416 with a Whipple. 925 rwhp 862 rwtq.

What size is the whipple? Also is the intake tube custom made? Nice looking setup on the ZL1.