1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

12A Dyno run! *Video and Sheet*

Thread Tools
 
Search this Thread
 
Old 02-14-07, 03:25 PM
  #26  
Full Member

Thread Starter
iTrader: (1)
 
Insane rx-7's Avatar
 
Join Date: Oct 2005
Location: Barrie, Ontario
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
VxTurbo... I believe that is exactly what is happening. It seems easier just to replace the whole carb and intake. Then to try and get that carb to run right.

Nick your car looks good in that picture I could show you some 3000x3000 pictures of my car at night but you still can't see the problems with it.
Old 02-14-07, 06:57 PM
  #27  
Torqueless Wonder

iTrader: (1)
 
cptpain's Avatar
 
Join Date: Oct 2004
Location: Texas
Posts: 2,020
Likes: 0
Received 3 Likes on 3 Posts
lose the 17's you're wheels actually are giving a slightly longer gearing and less torque due to the tall tire height and increasing rotational weight thus reducing overall power, i'd say with a smaller rim you'll have over 115hp
Old 02-14-07, 07:29 PM
  #28  
Full Member

Thread Starter
iTrader: (1)
 
Insane rx-7's Avatar
 
Join Date: Oct 2005
Location: Barrie, Ontario
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
LMAO.... Um i wasn't going to say anything but the second dyno sheet was with 15's on the car. Frist one is with 17's. Wheel diameter total will effect hp but wheel size has very little effect on the outcome.
Old 02-14-07, 11:22 PM
  #29  
Full Member

Thread Starter
iTrader: (1)
 
Insane rx-7's Avatar
 
Join Date: Oct 2005
Location: Barrie, Ontario
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
Couldn't edit that last post for some reason. They were 14's not 15's
Old 02-14-07, 11:31 PM
  #30  
blown up motors

iTrader: (1)
 
81gsl12a's Avatar
 
Join Date: Sep 2004
Location: morganton, NC
Posts: 1,325
Likes: 0
Received 1 Like on 1 Post
Originally Posted by vxturboxv
I Gotta ask... what is the copper line wrapped around the exhaust for? Are you heating the fuel or something?

where you being for real?
Old 02-15-07, 12:39 AM
  #31  
Rotary Freak

 
perfect_circle's Avatar
 
Join Date: Jun 2003
Location: Land Of Confusion southern MI, USA
Posts: 2,604
Likes: 0
Received 1 Like on 1 Post
teh difference in the size rims would probably change the curve like it did, taking it up to 7300 rpms instead of 6600.
Old 02-15-07, 01:30 AM
  #32  
Rotary Enthusiast

iTrader: (1)
 
Nicholas P.'s Avatar
 
Join Date: Jun 2005
Location: Louisiana
Posts: 1,415
Received 0 Likes on 0 Posts
Originally Posted by perfect_circle
teh difference in the size rims would probably change the curve like it did, taking it up to 7300 rpms instead of 6600.
If the tires are big and the rim is small it is the same as big rims and small tires.

If the tire is smaller than stock or larger than it will affect the speedo and rpm.
Old 02-15-07, 02:33 AM
  #33  
Rotary Enthusiast

iTrader: (2)
 
vxturboxv's Avatar
 
Join Date: Jul 2003
Location: Wichita KS
Posts: 1,052
Received 1 Like on 1 Post
Originally Posted by 81gsl12a
where you being for real?
Sure was... What the hell is it?
Old 02-15-07, 03:53 AM
  #34  
Got Rotors?

iTrader: (1)
 
robs_seven's Avatar
 
Join Date: Jul 2005
Location: Statesville, NC
Posts: 856
Likes: 0
Received 0 Likes on 0 Posts
it uses the heat from the exhaust to heat the air in the copper line which runs up to a heat activated choke spring to relax the choke spring and let the choke off once hot and once cold again it puts the choke back on. i had one on mine but swpped over to mechanical choke
Old 02-15-07, 10:49 AM
  #35  
Banned. I got OWNED!!!
iTrader: (2)
 
dj55b's Avatar
 
Join Date: Oct 2004
Location: London, Ontario
Posts: 6,122
Likes: 0
Received 1 Like on 1 Post
^^^ he's got it right ... I think the mechanical would be better as it seems like sometimes the heat in the tube stays too hot and keeps the choke on while i would like it off somtimes.
Old 02-15-07, 11:57 AM
  #36  
Rotary Enthusiast

iTrader: (2)
 
vxturboxv's Avatar
 
Join Date: Jul 2003
Location: Wichita KS
Posts: 1,052
Received 1 Like on 1 Post
Good to know! Never heard of a mechanical heat activated choke working like that. I had always used electrical ones. Usually activated by a thermal switch on the thermo. housing.
Old 02-15-07, 02:05 PM
  #37  
Rotary Freak

 
perfect_circle's Avatar
 
Join Date: Jun 2003
Location: Land Of Confusion southern MI, USA
Posts: 2,604
Likes: 0
Received 1 Like on 1 Post
what is the brand on that header?
Old 02-15-07, 02:49 PM
  #38  
Banned. I got OWNED!!!
iTrader: (2)
 
dj55b's Avatar
 
Join Date: Oct 2004
Location: London, Ontario
Posts: 6,122
Likes: 0
Received 1 Like on 1 Post
SDJ ... all stainless steel ... custom made to order ... currently out of business but word has it Robert from rotary shack has the plans but if just looking for a welder to weld them up.

This is a picture of them:




Also this is my original thread about them:

https://www.rx7club.com/showthread.p...&highlight=sdj
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Th0m4s
Build Threads
25
02-26-19 02:04 AM
Queppa
New Member RX-7 Technical
8
09-02-18 09:53 AM
dkwasherexd
Single Turbo RX-7's
21
05-27-17 04:51 AM
alphawolff
1st Generation Specific (1979-1985)
17
11-17-15 05:57 PM
rx7brandon
General Rotary Tech Support
3
08-16-15 10:55 AM



Quick Reply: 12A Dyno run! *Video and Sheet*



All times are GMT -5. The time now is 01:31 AM.