Single Turbo RX-7's Questions about all aspects of single turbo setups.

spool rate of the SR stage 2 turbo...

Thread Tools
 
Search this Thread
 
Old 01-07-03, 04:46 PM
  #1  
Full Member

Thread Starter
 
Join Date: Oct 2002
Location: Charleston WV
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
spool rate of the SR stage 2 turbo...

What is the spool rate like for the SR stage 2 turbo compared to other turbo setups? How streetable is it? Maybe even Ernie can chime in?
Old 01-07-03, 04:54 PM
  #2  
Rotary Enthusiast

 
Bridgeported's Avatar
 
Join Date: Nov 2002
Location: -
Posts: 1,021
Likes: 0
Received 1 Like on 1 Post
I can't help you out too much (no numbers) but I do know the stage 3 is similar to a T78 in terms of power output and size, but spools up a little bit faster.

Therefore, the stage 2 turbo should be even quicker spooling.
Old 01-07-03, 06:50 PM
  #3  
Need more sleep

iTrader: (1)
 
twokrx7's Avatar
 
Join Date: Nov 2001
Location: Woodlands TX
Posts: 1,690
Likes: 0
Received 2 Likes on 1 Post
I got 15 psi boost by about 4200-4400 rpm with SR Stage II Turbo and SR ported housings for my motor. In fourth gear it would make 10 psi by 3600rpm or so.
Old 01-07-03, 06:51 PM
  #4  
Need more sleep

iTrader: (1)
 
twokrx7's Avatar
 
Join Date: Nov 2001
Location: Woodlands TX
Posts: 1,690
Likes: 0
Received 2 Likes on 1 Post
Forgot to mention ... the exhaust housing and turbine on the Stage 2 is huge.
Old 01-07-03, 07:04 PM
  #5  
Living life 9 seconds at a time

iTrader: (2)
 
ErnieT's Avatar
 
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Bridgeported
I can't help you out too much (no numbers) but I do know the stage 3 is similar to a T78 in terms of power output and size, but spools up a little bit faster.

Therefore, the stage 2 turbo should be even quicker spooling.
There isn't a stage 3. Ray makes it in a stage 1,2,5 and 6.....Don't know why he skipped a few numbers...lol
I made 372rwhp @ 10psi.... I can't tell ya what I made at 20psi on a stock motor....I'd have to kill ya...
It spools faster than average. I hit 15psi at about 3900-4000 with a 1bar wastegate spring. This summer I'll run 28lbs and see how she does on a ported motor.
Old 01-07-03, 08:26 PM
  #6  
Senior Member

 
milkman2k52's Avatar
 
Join Date: Oct 2001
Location: redmond wa
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
That is the K28 turbo right? Wasn't there something going around about how SR was using holset housings and KKK compressors/turbines? Is there any other source for KKK turbos? Lately I've been realizing more and more just how many largely unknown (at least to me) options there are for RX-7 owners that are looking in the 450-550 rwhp range w/ relatively quick response. Sorry sometimes I ramble.
Old 01-07-03, 08:43 PM
  #7  
Living life 9 seconds at a time

iTrader: (2)
 
ErnieT's Avatar
 
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by milkman2k52
That is the K28 turbo right? Wasn't there something going around about how SR was using holset housings and KKK compressors/turbines?
No, its not the K28. The KKK that Ray sells, he does fab up with a holset compressor so no you wouldn't be able to buy his exact turbo from another source.
Old 01-08-03, 05:48 AM
  #8  
Rotary Enthusiast

 
Bridgeported's Avatar
 
Join Date: Nov 2002
Location: -
Posts: 1,021
Likes: 0
Received 1 Like on 1 Post
I must have been thinking of Stage II comparable to a T78 then, not the 'stage III' turbo.
Thanks for the correction.
Old 01-23-03, 01:13 AM
  #9  
Full Member

 
Dougie_fresh_007's Avatar
 
Join Date: Jan 2003
Location: tracy california
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts
hmmm as far as comparability, its quite large as i remember, but i know if u check out the sr site, they mad around 550 whp at 19 psi, but its water injected for all u that think its a horrible thing to do to ur 7, newayz check it out, its got a dyno for it, and a list of mods, sounds like a good turbo to me. its bigger than mine so
Old 01-23-03, 10:09 PM
  #10  
Rotary Enthusiast

 
Poweraxel's Avatar
 
Join Date: Feb 2001
Location: In the Sky
Posts: 1,190
Likes: 0
Received 0 Likes on 0 Posts
Re: spool rate of the SR stage 2 turbo...

your best bet is to contact www.srx7.com directly




Originally posted by WVSRMOTORSPORTSRX7
What is the spool rate like for the SR stage 2 turbo compared to other turbo setups? How streetable is it? Maybe even Ernie can chime in?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
10-07-15 08:12 PM
eplusz
General Rotary Tech Support
15
10-07-15 04:04 PM
lnlreaper
2nd Generation Specific (1986-1992)
2
09-27-15 09:59 AM



Quick Reply: spool rate of the SR stage 2 turbo...



All times are GMT -5. The time now is 01:40 AM.