Hey I got some new dyno numbers..
Joined: Feb 2008
Posts: 2,594
Likes: 5
From: Doucheville AZ
Hey I got some new dyno numbers..
Lets start with car and mods first.
2003 G35 Coupe 5 speed automatic.
Mods:
Z tube
Crawford V4 plenum (old school)
Titek test pipes
X02 Dual
My best run I pulled off 240 whp and 220 TQ which was done in trip tronic in 3rd gear.
Here are two pics... One of them is with my a/f ratio which I have no idea how a/f ratio works.. Tell me if I'm good or not on that.
The tech told me that my car was running very good and consistent all the way through.
2003 G35 Coupe 5 speed automatic.
Mods:
Z tube
Crawford V4 plenum (old school)
Titek test pipes
X02 Dual
My best run I pulled off 240 whp and 220 TQ which was done in trip tronic in 3rd gear.
Here are two pics... One of them is with my a/f ratio which I have no idea how a/f ratio works.. Tell me if I'm good or not on that.
The tech told me that my car was running very good and consistent all the way through.
Joined: Feb 2008
Posts: 2,594
Likes: 5
From: Doucheville AZ
Originally Posted by App6MT
Dyno should have been performed in 4th gear for a 1.000 ratio.
AFR is alittle low (12.5) at 6500RPM. It won't hurt anything but getting it to around 13.1-13.3 is optimal.
AFR is alittle low (12.5) at 6500RPM. It won't hurt anything but getting it to around 13.1-13.3 is optimal.
Oh well, maybe next time?
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
These numbers are meaningless if you didn't do a previous dyno with lesser mods/stock.
Always have a stock baseline dyno...and then dyno it again on the same machine!
.
Always have a stock baseline dyno...and then dyno it again on the same machine!
.
Joined: Feb 2006
Posts: 13,068
Likes: 101
From: Southern Cali --> 818
Originally Posted by 03BaseSedan
For 03 autos, 3rd gear is the optimal gear to dyno in.
.
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4th gear is 1:1 on the 03-06 automatic G35's. Why would 3rd gear be optimal?
Nick,
Your quick question is anything but. Dyno in 3rd gear starting the pull around 3600 rpm to prevent downshifting. Proper coolant temp and air inlet temp are very important to getting good dyno numbers - and good street/track performance.
The 4th gear 1:1 ratio everyone quotes amuses me. Because of the torque converter (fluid coupling) the advertised gear ratios are almost irrelevant. Unless your Jim Wolf who's figured out how to fully lock up the TC in 4th.
If the dyno operator doesn't use the proper gear correction factor your numbers won't be accurate - especially on the DynoPack since it doesn't have a speed (RPM) pick-up.
There's lots to discuss and I'm not much for doing a PM essay. If you'd like you can give me a call and we'll talk early A/T Sedans.
Your quick question is anything but. Dyno in 3rd gear starting the pull around 3600 rpm to prevent downshifting. Proper coolant temp and air inlet temp are very important to getting good dyno numbers - and good street/track performance.
The 4th gear 1:1 ratio everyone quotes amuses me. Because of the torque converter (fluid coupling) the advertised gear ratios are almost irrelevant. Unless your Jim Wolf who's figured out how to fully lock up the TC in 4th.
If the dyno operator doesn't use the proper gear correction factor your numbers won't be accurate - especially on the DynoPack since it doesn't have a speed (RPM) pick-up.
There's lots to discuss and I'm not much for doing a PM essay. If you'd like you can give me a call and we'll talk early A/T Sedans.
Last edited by MM_G3520; Jun 23, 2008 at 04:51 PM.
Joined: Feb 2008
Posts: 2,594
Likes: 5
From: Doucheville AZ
Triptronic was used... When I dynoed in D it was a 4th gear pull from 40mph in 4th.. Car shifts early in 5 so I only got in the mid 230's in D.. This proves for performance you should always use triptronic instead of D
Originally Posted by Skaterbasist
These numbers are meaningless if you didn't do a previous dyno with lesser mods/stock.
Always have a stock baseline dyno...and then dyno it again on the same machine!
.
Always have a stock baseline dyno...and then dyno it again on the same machine!
.
Originally Posted by 03BaseSedan
This is what DaveO of Nissan Sport mag PMed me.
Originally Posted by ninous26
Triptronic was used... When I dynoed in D it was a 4th gear pull from 40mph in 4th.. Car shifts early in 5 so I only got in the mid 230's in D.. This proves for performance you should always use triptronic instead of D
Joined: Feb 2008
Posts: 2,594
Likes: 5
From: Doucheville AZ
Originally Posted by Lawy'dU
well, most coupes baselike around 223, this probably isn't necessary....
Joined: Feb 2008
Posts: 2,594
Likes: 5
From: Doucheville AZ
Originally Posted by ttrank
A custom tune for your car and your mods is the best way to go.
Registered User
Joined: Mar 2004
Posts: 87
Likes: 0
hey ninous26.....i have an '04...AT...with the basic breather mods as you....and after a TechnoSquare F-spec reflash , i'm pulling 270'ish whp....running on a 50/50 mix of 91 and 101 octane.....with just 91 i'm running bout 260'ish whp....so you would see some small improvements if you did a full reflash/tune.....
