Notices
Northern California San Francisco, Oakland, Sacramento, San Jose, Pleasanton, etc.

Dyno Days!!!

Thread Tools
 
Search this Thread
 
Old 11-21-2005, 04:28 PM
  #21  
SJTrackZ
Registered User
iTrader: (1)
 
SJTrackZ's Avatar
 
Join Date: Jun 2003
Location: San Jose
Posts: 135
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by highside107
Are you sure? I asked Ted myself and he said he wasn't dynoing at the rear wheels on Saturday.. he said everything was at the crank. My dyno sheet is right on because I'm bone stock , performance-wise. Not trying to argue with you... just asking
Hmmm. That's strange. Wonder what kind of calculation he was using. He should have been able to let you know the whp in that case.
Old 11-21-2005, 05:09 PM
  #22  
yeperra
Registered User
iTrader: (1)
 
yeperra's Avatar
 
Join Date: Jul 2003
Location: Hayward, Ca.
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
Default

+1 for Scott Performance.

300.7 hp at the crank, stock AE with Nismo cat back. Went a little lean in the high rpm range so maybe ready for the Unichip and a Ted dyno tune.

These guys and gal's are great and I'm glad to have found a place I don't mind having my car worked on at!

Thanks Ted
Yon Perras
Old 11-21-2005, 05:13 PM
  #23  
highside107
Registered User
iTrader: (1)
 
highside107's Avatar
 
Join Date: Dec 2004
Location: New York, NY
Posts: 2,632
Likes: 0
Received 0 Likes on 0 Posts
Default

Also, how do you make 279 hp at the wheels with *just* a y-pipe and headers? Or can you?
Old 11-21-2005, 06:32 PM
  #24  
yeperra
Registered User
iTrader: (1)
 
yeperra's Avatar
 
Join Date: Jul 2003
Location: Hayward, Ca.
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
Default

It's at the crank I'm pretty sure.
Old 11-22-2005, 04:40 AM
  #25  
SJTrackZ
Registered User
iTrader: (1)
 
SJTrackZ's Avatar
 
Join Date: Jun 2003
Location: San Jose
Posts: 135
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah, 279 is pretty high. I have nismo headers, nismo exhaust, JWT popcharger, and unichip (tuned by Ted) I made 256 at the wheels on his dyno. 238 pre unichip.
Old 11-22-2005, 09:20 AM
  #26  
anotheraznguy
Registered User
iTrader: (14)
 
anotheraznguy's Avatar
 
Join Date: May 2004
Location: Tracy Ca
Posts: 1,963
Likes: 0
Received 0 Likes on 0 Posts
Default

how would u dyno at crank?
Old 11-22-2005, 10:54 AM
  #27  
yeperra
Registered User
iTrader: (1)
 
yeperra's Avatar
 
Join Date: Jul 2003
Location: Hayward, Ca.
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
Default

It must be corrected from the wheels to the readout crank hp?

Ted can you clear this up?
Old 11-22-2005, 11:02 AM
  #28  
daveh
Registered User
iTrader: (9)
 
daveh's Avatar
 
Join Date: Jan 2004
Location: CA
Posts: 1,151
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes he was converting to crank. I lost 7hp with my mods I am a little confused with the print out he gave me though. It says that I made max power at 6500. Doesn't the power peak around 5700?
Old 11-22-2005, 01:10 PM
  #29  
pLacebo
The Eradicator
 
pLacebo's Avatar
 
Join Date: Apr 2003
Location: at work
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Default

Just curious but why not just measure rwhp? Seems like there are way too many variables between different cars to effectively calculate crank hp based off of a rwhp measurement.
Old 11-22-2005, 01:14 PM
  #30  
ZON
Registered User
iTrader: (2)
 
ZON's Avatar
 
Join Date: May 2002
Location: norcal
Posts: 2,059
Likes: 0
Received 0 Likes on 0 Posts
Default

Sp did everything in my sig. So this is what you guys can expect if you wanted my package. It PullZ!!
Old 11-22-2005, 10:01 PM
  #31  
highside107
Registered User
iTrader: (1)
 
highside107's Avatar
 
Join Date: Dec 2004
Location: New York, NY
Posts: 2,632
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm a little confused as well about the printout he gave me... he said everything was at the crank. My torque dyno says 221 tq @ 6500 rpms; Ted said that was pretty much right on from the factory (my Z is bone stock). Are Z's rated at 221 tq CRANK from the factory at 6500 rpms???? Or is this at the wheels? Looking on Nissan's website, we have 274 tq @ 4800 rpms. This is where we have max torque, so I look at my dyno chart once again and scan the rpms. The most torque we have indeed is at 5000 rpms; my dyno says 238 tq @ 5000 rpms. So do I have 238 tq at the wheels at 5000 rpms? Or crank? Does this sound about right for a bone stock Z? I'll post my dyno chart if it helps.
Old 11-23-2005, 06:07 AM
  #32  
SJTrackZ
Registered User
iTrader: (1)
 
SJTrackZ's Avatar
 
Join Date: Jun 2003
Location: San Jose
Posts: 135
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by highside107
I'm a little confused as well about the printout he gave me... he said everything was at the crank. My torque dyno says 221 tq @ 6500 rpms; Ted said that was pretty much right on from the factory (my Z is bone stock). Are Z's rated at 221 tq CRANK from the factory at 6500 rpms???? Or is this at the wheels? Looking on Nissan's website, we have 274 tq @ 4800 rpms. This is where we have max torque, so I look at my dyno chart once again and scan the rpms. The most torque we have indeed is at 5000 rpms; my dyno says 238 tq @ 5000 rpms. So do I have 238 tq at the wheels at 5000 rpms? Or crank? Does this sound about right for a bone stock Z? I'll post my dyno chart if it helps.
238 does sound like an "at the wheel" number for torque. I have no idea the calculations used to measure HP at the crank. I thought the engine had to be out of a car to get an accurate #.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lt_Ballzacki
Brakes & Suspension
39
08-06-2021 06:19 AM
apex locator
Autocross/Road
10
07-23-2021 02:27 AM
MM'08_350Z
VQ35HR
225
04-22-2021 09:42 PM
kyin
New Owners
12
10-15-2015 05:54 AM



Quick Reply: Dyno Days!!!



All times are GMT -8. The time now is 11:46 AM.