2003 zo6 runs at atco and Island dragways
10-06-2023, 05:05 PM
#1
8th Gear
Thread Starter
2003 zo6 runs at atco and Island dragways
So last year at atco my best run was a 11.66 at 123 with a disgusting 1.92 60 foot...car is equipped with a procharger, headers,exhaust and meth injection..made 556 rwhp.....over the winter I added AFR heads and custom cam..car made 602 rwhp and 497 torque....procharger is at 7.5 lbs .....last week at Island dragway my best run was 11.68 at 121 with a 1.80 60 foot...what in the actual f@#k!!!!!.....last years dyno was on a mustang dyno...this years was on a dynojet
The following users liked this post:
joeypastaman (10-07-2023)
10-06-2023, 11:47 PM
#3
Drifting
Member Since: Sep 2017
Location: Pasadena, MD
Posts: 1,980
Received 478 Likes
on
287 Posts
2023 C5 of the Year Finalist - Modified
Someone correct me if I'm wrong but I think the average mustang dyno makes about 8% less than a Dynojet so those dyno pulls are about equal. Did you not change pulley size after the H/C?
As far as the times they aren't much different. Conditions could very easily cause the slower mph.
Does your car feel faster since the H/C?
I agree w navy blue about the mph. Something isn't right. Could your clutch be slipping?
As far as the times they aren't much different. Conditions could very easily cause the slower mph.
Does your car feel faster since the H/C?
I agree w navy blue about the mph. Something isn't right. Could your clutch be slipping?
10-07-2023, 01:55 PM
#5
8th Gear
Thread Starter
i was told the same about those dynos...pulley was not changed...It's been said that the elevation at Island tends to make cars run a few ticks slower..Clutch is fine.no issues at all...Honestly the car car feels the same although the meth has been turned down as the tuned before was meth heavy....this tuner decided to lower the meth so if it fails I wouldn't hurt the motor...
10-08-2023, 01:49 AM
#6
Safety Car
Member Since: Feb 2021
Location: Florida
Posts: 4,034
Received 2,245 Likes
on
1,301 Posts
2022 C5 of the Year Finalist - Unmodified
Turning the meth down seems contrary with adding better heads. More air flow opportunity, more meth, more boost, more fast, lol….
10-10-2023, 02:00 PM
#7
Safety Car
An HPT data log of those runs that includes AFR would tell a lot.
Dynos aren’t dragstrips.
I agree that thing should be 130+
Shoot, my auto trans C5 trapped 123 with the NA 346.
Dynos aren’t dragstrips.
I agree that thing should be 130+
Shoot, my auto trans C5 trapped 123 with the NA 346.