Notices
Evo Dyno Tuning / Results Discuss vendor and member dyno tuning techniques, results and graphs.

PTE 6766 vs. FP 3794 - 5 different boost levels - Boostin Performance

Thread Tools
 
Search this Thread
 
Old Jan 14, 2013, 04:03 PM
  #16  
Evolved Member
iTrader: (30)
 
JohnBradley's Avatar
 
Join Date: Jan 2004
Location: Northwest
Posts: 11,396
Received 64 Likes on 48 Posts
Josh you need to track down a 1.15 T4 for your car.

Interesting data, the 3794 may have been on the wrong side of the choke line as well at 55psi because it didnt hold it for very long. It definitely seemed happier at 52psi.

Aaron

Last edited by JohnBradley; Jan 14, 2013 at 06:49 PM.
Old Jan 14, 2013, 04:17 PM
  #17  
Evolved Member
iTrader: (20)
 
dtrackstar's Avatar
 
Join Date: Dec 2008
Location: U.S of A
Posts: 1,025
Likes: 0
Received 2 Likes on 2 Posts
Thanks for sharing!
Old Jan 14, 2013, 04:33 PM
  #18  
Evolved Member
iTrader: (46)
 
Joshs EVO's Avatar
 
Join Date: Sep 2006
Location: Thornton, CO & Pasadena, MD
Posts: 1,400
Likes: 0
Received 0 Likes on 0 Posts
I think FP sells them for $300 o something. Not to thread hijack but didn't I read somewhere that you posted that spool on a TS won't be affected on the size of the a/r.
Old Jan 14, 2013, 04:52 PM
  #19  
Evolved Member
iTrader: (30)
 
JohnBradley's Avatar
 
Join Date: Jan 2004
Location: Northwest
Posts: 11,396
Received 64 Likes on 48 Posts
Well its the 60% rule on spool so a 1.00 will act like a 0.60 where a 1.15 acts like a 0.69 A/r single housing. The advantage is out the top where it acts 90% of its size vs power.
Old Jan 14, 2013, 06:26 PM
  #20  
Evolved Member
iTrader: (32)
 
R/TErnie's Avatar
 
Join Date: Aug 2003
Location: WAR EAGLE!
Posts: 5,380
Likes: 0
Received 6 Likes on 6 Posts
Originally Posted by JohnBradley
Josh you need to track down a 1.15 T4 for your car.

Interesting data, the 3794 may have been on the wrong side of the surge line as well at 55psi because it didnt hold it for very long. It definitely seemed happier at 52psi.

Aaron
choke line. great test thanks for sharing
Old Jan 14, 2013, 06:49 PM
  #21  
Evolved Member
iTrader: (30)
 
JohnBradley's Avatar
 
Join Date: Jan 2004
Location: Northwest
Posts: 11,396
Received 64 Likes on 48 Posts
Originally Posted by R/TErnie
choke line.
corrected, thanks for knowing and translating what I meant
Old Jan 14, 2013, 06:56 PM
  #22  
Evolved Member
 
MrLith's Avatar
 
Join Date: Mar 2010
Location: Welly NZ
Posts: 715
Received 17 Likes on 13 Posts
Originally Posted by R/TErnie
choke line. great test thanks for sharing
Thats what I had been wondering as well, makes it look to me like the HTA3794 might be better flowing at "lower" PRs, possibly being better suited to bigger engines which can flow flow more air at less boost such as Skylines/Supras. I'd love to see a 3794R on a 2JZGTE at 30-40psi....
Old Jan 14, 2013, 07:14 PM
  #23  
Evolved Member
iTrader: (4)
 
AreSTG's Avatar
 
Join Date: Jul 2005
Location: PA/NC
Posts: 951
Likes: 0
Received 1 Like on 1 Post
thanks for taking the time to do the test, and for doing it well at that.

Curious if you have any personal opinions on transient response in general. The PTE obviously looks less laggy, but I'd like to hear how that translates into transient, or if it doesn't.

awesome stuff.
Old Jan 15, 2013, 12:30 AM
  #24  
Evolving Member
iTrader: (1)
 
mynx87's Avatar
 
Join Date: Nov 2008
Location: central cali
Posts: 175
Likes: 0
Received 0 Likes on 0 Posts
Awesome results thanks for putting in the time to do this you guys rock and so does PTE
Old Jan 15, 2013, 11:09 AM
  #25  
Evolved Member
iTrader: (2)
 
Kins's Avatar
 
Join Date: Nov 2007
Location: England
Posts: 667
Received 2 Likes on 2 Posts
You're not going to go wrong with either of those really are you?!

Nice test - thanks for sharing
Old Jan 15, 2013, 07:49 PM
  #26  
Former Sponsor
iTrader: (12)
 
Dynotech Tuning's Avatar
 
Join Date: Jan 2011
Location: Seekonk, MA
Posts: 1,312
Likes: 0
Received 9 Likes on 7 Posts
Curious on the 55psi dyno #'s too. I wouldn't have even caught the 100ish whp difference between the Facebook post and this test if it hadn't been mentioned. I'm just curious which was the actual result.

Great test BTW, been looking forward to this release since you guys mentioned it on your FB page Very well done.

Could you compare the air temp readings for each turbo at each boost level? It may help to show how steeply the turbos Efficency drops as you exceed certain levels.

-Jamie

Last edited by Dynotech Tuning; Jan 15, 2013 at 07:55 PM.
Old Jan 15, 2013, 08:11 PM
  #27  
Evolved Member
 
MrLith's Avatar
 
Join Date: Mar 2010
Location: Welly NZ
Posts: 715
Received 17 Likes on 13 Posts
Originally Posted by Dynotech Tuning
I wouldn't have even caught the 100ish whp difference between the Facebook post and this test if it hadn't been mentioned. I'm just curious which was the actual result.
I'm pretty obsessive about #s at the best of times, and the >1000whp on a T3 turbo definitely got me all excited so I was going to notice if something changed . Another thing that got my attention is in the test it states he used E70, whereas going from previous posts about racing and tuning as either E85 (using E98 + C16 to custom blend) or straight E98 as a fuel - can't help but wonder what kind of difference that results in.
Old Jan 15, 2013, 08:35 PM
  #28  
Former Sponsor
iTrader: (12)
 
Dynotech Tuning's Avatar
 
Join Date: Jan 2011
Location: Seekonk, MA
Posts: 1,312
Likes: 0
Received 9 Likes on 7 Posts
It appears that the difference between the two identical results is about the same percentage. Might just mean the dyno shop migh have calibrated their mustang dyno to be closer to dynojet results but Boostin had their results show the standard mustang dyno's parameters? Just a guess.

-Jamie
Old Jan 15, 2013, 09:50 PM
  #29  
Evolved Member
iTrader: (64)
 
evovin's Avatar
 
Join Date: Jan 2007
Location: Florida
Posts: 3,377
Likes: 0
Received 0 Likes on 0 Posts
Thanks for sharing the comparison of these turbos! These turbos are my first choice but the PTE is cheaper, that's the reason why I only reason I got it if the price were the same I would have grab the 3794. lol
I wonder how much power/spool difference on twin scroll?
Old Jan 16, 2013, 04:06 AM
  #30  
Evolved Member
iTrader: (5)
 
way2qik's Avatar
 
Join Date: Mar 2009
Location: With my admirers in the BACK ROOM!
Posts: 651
Received 4 Likes on 4 Posts
Great comparison between these two turbos. Just curious why you didn't include this particular dyno sheet? Also wondering why the numbers on this sheet at 55lbs are different than the one you posted? The time on this sheet and the other one are identical, so why is there a 100hp difference?
Attached Thumbnails PTE 6766 vs. FP 3794 - 5 different boost levels - Boostin Performance-6766-dyno-sheet.jpg  

Last edited by way2qik; Jan 16, 2013 at 04:11 AM.


Quick Reply: PTE 6766 vs. FP 3794 - 5 different boost levels - Boostin Performance



All times are GMT -7. The time now is 04:23 AM.