Tuning Greddy today!!!!
07-26-2005, 03:26 PM
#52
05 Champ Car Test Driver
Thread Starter
Join Date: Jul 2004
Location: Calgary, AB - Canada
Posts: 385
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by lazi
hey lschiavo hows ur gas mileage? horrible? or not bad? i wanna know if its gonna eat a lot
07-26-2005, 03:31 PM
#54
05 Champ Car Test Driver
Thread Starter
Join Date: Jul 2004
Location: Calgary, AB - Canada
Posts: 385
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Sigma
Yeah.....
Wait a second....
How does your Torque and HP curves cross at 4800? They must cross at 5252.
Wait a second....
How does your Torque and HP curves cross at 4800? They must cross at 5252.
I guess with turbo everything changes
07-26-2005, 03:35 PM
#55
Consiglieri
Join Date: Feb 2004
Location: yourI'mgirl
Posts: 1,275
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Lschiavo
this crosses at 6K
I guess with turbo everything changes
I guess with turbo everything changes
Nope. Its a mathematical formula not dependent on aspiration. HP=TQ*RPM/5250. Therefore, when RPM=5250 HP=TQ (when using HP and Ft-lbs)
Seems to indicate that something is wrong with the dyno.....
07-26-2005, 04:03 PM
#56
05 Champ Car Test Driver
Thread Starter
Join Date: Jul 2004
Location: Calgary, AB - Canada
Posts: 385
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MadDog
Nope. Its a mathematical formula not dependent on aspiration. HP=TQ*RPM/5250. Therefore, when RPM=5250 HP=TQ (when using HP and Ft-lbs)
Seems to indicate that something is wrong with the dyno.....
Seems to indicate that something is wrong with the dyno.....
07-26-2005, 04:10 PM
#57
Registered
Join Date: Aug 2004
Location: Virginia/Maryland
Posts: 1,294
Likes: 0
Received 0 Likes
on
0 Posts
Why did you pay them when they clearly must not have tuned it right? If I understand you correctly you made 245hp on the dyno, but you discarded that map because it didn't run well on the street and are now using your original map giving you 188hp. Is this right?
07-26-2005, 04:18 PM
#58
Ex- member.
Also, check your "additional injector map" and see if they added extra lines for the higher boost. If I remember correctly, my 0707 map only went up to 53kPa (7.7psi) since I wasn't going above 6.5psi then.
07-26-2005, 04:42 PM
#59
05 Champ Car Test Driver
Thread Starter
Join Date: Jul 2004
Location: Calgary, AB - Canada
Posts: 385
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by rkostolni
Why did you pay them when they clearly must not have tuned it right? If I understand you correctly you made 245hp on the dyno, but you discarded that map because it didn't run well on the street and are now using your original map giving you 188hp. Is this right?
07-26-2005, 05:38 PM
#60
Registered
Join Date: Mar 2005
Posts: 691
Likes: 0
Received 0 Likes
on
0 Posts
There's clearly something wrong with their dyno since Torque doesn't equal Horsepower at 5252 RPM. But as long as you can feel the difference, that's what matters. Looking forward to some GTech times to really compare the difference.
07-26-2005, 05:41 PM
#61
Registered
Join Date: Aug 2004
Location: Virginia/Maryland
Posts: 1,294
Likes: 0
Received 0 Likes
on
0 Posts
Do you know what your a/f ratio's are? You will likely be lean if you are running the original Greddy map and are at 8 psi. Did they still charge you even though they didn't do anything?
07-26-2005, 06:20 PM
#63
Ex- member.
Originally Posted by zoom44
its not the dyno itsthe chart- the 2 y axis' are not to the same scale. just need to fix the T scale
The 1st dyno posted, showing the 245whp, does have the y-axis on the same scale and they cross at 4,800rpm.
07-26-2005, 06:44 PM
#64
05 Champ Car Test Driver
Thread Starter
Join Date: Jul 2004
Location: Calgary, AB - Canada
Posts: 385
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by adrian-1
That's for the 2nd dyno he posted.
The 1st dyno posted, showing the 245whp, does have the y-axis on the same scale and they cross at 4,800rpm.
The 1st dyno posted, showing the 245whp, does have the y-axis on the same scale and they cross at 4,800rpm.
Ok found the problem. it is a computer graph problem. I compared my best run (245WHP and 217 tq) vs another run, and in this graph my best run crosses at 5200. It is the same run just comparing to another one. Dont know what happened, this is Stock boost vs. 8 psi
Last edited by Lschiavo; 07-26-2005 at 06:58 PM.
07-26-2005, 10:49 PM
#66
Consiglieri
Join Date: Feb 2004
Location: yourI'mgirl
Posts: 1,275
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Lschiavo
I am using the 07-07 stock like i got it from the forum. (Read my post earlier)
The mettalic rattle is still there sometimes. No matter if i go 8 psi, 7 psi , stock boost does not sound (maybe wg, maybe detonation?)
The mettalic rattle is still there sometimes. No matter if i go 8 psi, 7 psi , stock boost does not sound (maybe wg, maybe detonation?)
I'd bet you are running dangerously lean at the higher boost. Since the stock map doesn't go that high, you might be minus one injector per rotor!
07-27-2005, 05:33 AM
#67
Originally Posted by Lschiavo
Ok found the problem. it is a computer graph problem. I compared my best run (245WHP and 217 tq) vs another run, and in this graph my best run crosses at 5200. It is the same run just comparing to another one. Dont know what happened, this is Stock boost vs. 8 psi
lschiavo,
looks very good, hope you can figure out the high rev issue. 15 hp and 30lbs of torque on a tune, wow!!!!
also with that much torque down low it must be fun.
beers
07-27-2005, 11:20 AM
#70
Administrator
yeah dmp i sright- the corrction is just to be able to make a comparison against people dynoing other places. but what is said before the correction is what you ACTUALLY MADE on THAT RUN. very nice i bet close to 280 as well.
Thread
Thread Starter
Forum
Replies
Last Post
Danield97
Series I Trouble Shooting
1
09-30-2015 05:59 PM
Racingjunkie
Series I Wheels, Tires, Brakes & Suspension
2
09-29-2015 05:05 PM