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

Another T78 Dyno Thread..

Thread Tools
 
Search this Thread
 
Old Mar 21, 2013 | 01:27 PM
  #1  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
SC Another T78 Dyno Thread..

Hey guys Just got my car Dyno tuned last weekend, my setup is basically a stockport motor with a t78, the car was only tuned for 14.5 pounds ( due to the wastegate spring) and i ended up making 347whp and 301 wtq on a mustang dyno. I had an opprotunity to get tuned by a very good tuner from new jersey, and i am pleased with the results, also does anybody have an idea of about how much power it would have read on a dynojet? i read somewhere that the difference is about 12%, but i'm not too sure. Car was tuned by Abraham Alba, here's the video:



Dynosheet:
Name:  AbrahamAlbaDynosheet_zps87a01bfa.jpg
Views: 190
Size:  43.4 KB
Reply
Old Mar 21, 2013 | 02:18 PM
  #2  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by drftinmx6
Hey guys Just got my car Dyno tuned last weekend, my setup is basically a stockport motor with a t78, the car was only tuned for 14.5 pounds ( due to the wastegate spring) and i ended up making 347whp and 301 wtq on a mustang dyno. I had an opprotunity to get tuned by a very good tuner from new jersey, and i am pleased with the results, also does anybody have an idea of about how much power it would have read on a dynojet? i read somewhere that the difference is about 12%, but i'm not too sure. Car was tuned by Abraham Alba, here's the video:

1. Brian Diaz tuned by Abraham Alba. T78. - YouTube


Dynosheet:
correction - i read the sheet wrong my numbers are 347whp/316 tq at 14.5 psi
Reply
Old Mar 21, 2013 | 02:27 PM
  #3  
Islander's Avatar
Rotary Enthusiast
Tenured Member 15 Years
iTrader: (6)
 
Joined: Aug 2002
Posts: 814
Likes: 7
From: Charlotte NC
Car sounded really good. Healthy motor done by eccentric performance. And the tune was crisp. Abraham did an amazing job on it.
Reply
Old Mar 21, 2013 | 03:58 PM
  #4  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
Mustangs read about 10% lower than a Dynojet. Your numbers seem a little low but as long as the car runs well I wouldn't worry about it.
Reply
Old Mar 22, 2013 | 07:27 AM
  #5  
82streetracer's Avatar
8/1 Building/Drive Ratio
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jan 2002
Posts: 2,397
Likes: 1
From: Mound, MN
looks like a professional shop.

NOT!

all things aside, that is not a safe way to run a dyno. Especially where that fat *** guy with the rusky hat is standing. One minor problem with the tie-down and his fat *** will shrink real quick when the car flattens him against the lift post. IMO there shouldnt be anyone within 15ft of a dyno run except the person pressing on the gas pedal.
Reply
Old Mar 24, 2013 | 12:20 AM
  #6  
TwinCharged RX7's Avatar
Built Not Bought
Tenured Member: 15 Years
Top Answer: 1
iTrader: (14)
 
Joined: May 2008
Posts: 4,389
Likes: 964
From: Stamford, CT
Those numbers are low even for that dyno. My old T78 was at about 400 around that psi. I was street ported though.
Reply
Old Mar 24, 2013 | 10:51 AM
  #7  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
i figured the tuner told me he kept it pretty conservative, but the car feels great on the road so i'm happy with it for now, they're just numbers, it could really read anything depending on how it's set up. so i'm not too worried about it.
Reply
Old Mar 24, 2013 | 05:54 PM
  #8  
bmwrx7man's Avatar
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
i say 400whp on a dynojet . i hate those mustang dynos lol pretty sure that turbo works alot better on higher boost then that
Reply
Old Mar 24, 2013 | 09:05 PM
  #9  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by bmwrx7man
i say 400whp on a dynojet . i hate those mustang dynos lol pretty sure that turbo works alot better on higher boost then that
yeah i agree
Reply
Old Apr 1, 2013 | 08:31 AM
  #10  
darkphantom's Avatar
The king of the highway!
Tenured Member 10 Years
iTrader: (2)
 
Joined: May 2004
Posts: 2,988
Likes: 0
From: Home of the 305 Boyz(miami)
Originally Posted by Jason
Mustangs read about 10% lower than a Dynojet. Your numbers seem a little low but as long as the car runs well I wouldn't worry about it.
Likewise with Jason.... Im not too much of an expert with Mustang dynos but for reference i made 430 @ 12 lbs on a DynoDynamics with correction..

https://www.rx7club.com/time-slips-d...w-dyno-613443/
Reply
Old Apr 1, 2013 | 08:52 AM
  #11  
Bacon's Avatar
IRS 4 Life
Tenured Member: 20 Years
iTrader: (12)
 
Joined: Feb 2001
Posts: 2,634
Likes: 2
From: Sicklerville, South Jersey!!
Is it just me or does any one else hear the breakup on the top end? Suprised not reflected on the dyno grap.
350@ 1 bar does seem low for that turbo, but stock ports are limiting
Reply
Old Apr 1, 2013 | 11:27 AM
  #12  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by Bacon
Is it just me or does any one else hear the breakup on the top end? Suprised not reflected on the dyno grap.
350@ 1 bar does seem low for that turbo, but stock ports are limiting
i don't hear any breakup?
Reply
Old Apr 9, 2013 | 11:29 AM
  #13  
Rotor Nut.
Tenured Member 20 Years
iTrader: (34)
 
Joined: Feb 2002
Posts: 2,163
Likes: 2
From: RI
i make around 60-70whp less on a mustang dyno. but its just a number. i actually like tuning on them since everyone thinks you have a slow car then next thing you know you have a bus length on them lol.
Reply
Old Apr 9, 2013 | 11:46 AM
  #14  
junito1's Avatar
F**K THE SYSTEM!!
Tenured Member: 15 Years
 
Joined: Sep 2006
Posts: 2,591
Likes: 1
From: Florida
Originally Posted by 82streetracer
looks like a professional shop.

NOT!

all things aside, that is not a safe way to run a dyno. Especially where that fat *** guy with the rusky hat is standing. One minor problem with the tie-down and his fat *** will shrink real quick when the car flattens him against the lift post. IMO there shouldnt be anyone within 15ft of a dyno run except the person pressing on the gas pedal.
People.like you is why this world is.so lame!!! Go nag somewhere else you square.
Reply
Old Apr 9, 2013 | 11:49 AM
  #15  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by smg944
i make around 60-70whp less on a mustang dyno. but its just a number. i actually like tuning on them since everyone thinks you have a slow car then next thing you know you have a bus length on them lol.
LOL yeah man right after the tune i raced a turbocharged 2005 mustang GT that was running about 6 lbs of boost, and i put bus lengths on him, lol i ran into him a couple of days ago and he was complimenting me on how fast my car was.
Reply
Old Apr 9, 2013 | 11:50 AM
  #16  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by junito1
People.like you is why this world is.so lame!!! Go nag somewhere else you square.
hahaha if i could like this comment like it was on facebook I would!
Reply
Old Apr 9, 2013 | 12:35 PM
  #17  
deftones1868's Avatar
Full Member
Tenured Member: 10 Years
iTrader: (19)
 
Joined: Jul 2012
Posts: 225
Likes: 0
From: painesville oh
Originally Posted by Bacon
Is it just me or does any one else hear the breakup on the top end? Suprised not reflected on the dyno grap.
350@ 1 bar does seem low for that turbo, but stock ports are limiting
I thought the same thing! @ 9-10seconds it sounds like it breaks up but it might be distorted sound as well.
Reply
Old Apr 9, 2013 | 12:45 PM
  #18  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by deftones1868
I thought the same thing! @ 9-10seconds it sounds like it breaks up but it might be distorted sound as well.
Yeah I believe it's distorted sound now that I listen to it again, the video was recorded from a phone
Reply
Old Apr 9, 2013 | 10:43 PM
  #19  
Bacon's Avatar
IRS 4 Life
Tenured Member: 20 Years
iTrader: (12)
 
Joined: Feb 2001
Posts: 2,634
Likes: 2
From: Sicklerville, South Jersey!!
Originally Posted by drftinmx6
Yeah I believe it's distorted sound now that I listen to it again, the video was recorded from a phone
Yes its literally a blip,, then 2-300 more rpm then blip blip blip, then he gets out of it, would have like to see him pull it to 7,500
Reply
Old Apr 10, 2013 | 10:01 PM
  #20  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by Bacon
Yes its literally a blip,, then 2-300 more rpm then blip blip blip, then he gets out of it, would have like to see him pull it to 7,500
yeah well me and islander were there in person and the car sounded clean with every pull he did, believe me if it was breaking up the tuner would have told me and we definately would have not have been questioning it. Only reason he stopped the tune where it was at was because of the wastegate spring and he could not turn up the boost anymore.
Reply
Old Apr 25, 2013 | 11:12 AM
  #21  
rx7 SE's Avatar
Enthusiast
Tenured Member 15 Years
iTrader: (5)
 
Joined: Aug 2004
Posts: 2,181
Likes: 1
From: Charlotte, NC
I can bare witness to the 'pullage' his tune consists of. That dyno must have read very very low. Tune held up well on the Dragon.

...Thanks B, the M3 is scared to come out of the garage now
Reply
Old Apr 25, 2013 | 12:22 PM
  #22  
dabigesii's Avatar
Back to basics
Tenured Member: 20 Years
Liked
iTrader: (4)
 
Joined: Mar 2004
Posts: 855
Likes: 12
From: Crescent City
Originally Posted by smg944
i make around 60-70whp less on a mustang dyno. but its just a number. i actually like tuning on them since everyone thinks you have a slow car then next thing you know you have a bus length on them lol.
Hahaha, this statement is so true. I love telling people I have a low horsepower number then skull drag them when it comes down to race. As long as the car runs well and the power band is there, I'm happy...I got over chasing horsepower numbers a while ago.
Reply
Old Apr 25, 2013 | 01:11 PM
  #23  
97SupraTwinTurbo's Avatar
Trackstar motorsport
Tenured Member 10 Years
iTrader: (8)
 
Joined: May 2002
Posts: 242
Likes: 1
From: glendale, ca
Mustang dyno's are known as heart breakers, now you know why ahhaa. Just use a dyno for tuning purposes, they all show different numbers like stated above. As long as the tune is correct, you're good to go!
Reply
Old Apr 25, 2013 | 01:49 PM
  #24  
Rotary Madman's Avatar
Junior Member
 
Joined: Apr 2013
Posts: 26
Likes: 0
From: Crap A** California
OOH.. this thread has gotten me all excited!

I've got a T78 I need to get up and running. Problem is I am a little low on funding at the moment and still need to get a PFC and intercooler. I was thinking of running a cheaper M-spec, or god-speed FMIC with it so I can get the project moving faster. anybody with t-78's been successful with cheaper inter cooler options?

I see it as the item I may be able to save a little money on and spend towards engine management and gauges instead.

any input?
Reply
Old Apr 25, 2013 | 02:42 PM
  #25  
drftinmx6's Avatar
Thread Starter
Senior Member
Tenured Member 15 Years
iTrader: (6)
 
Joined: Mar 2004
Posts: 523
Likes: 0
From: Columbia, SC
Originally Posted by Rotary Madman
OOH.. this thread has gotten me all excited!

I've got a T78 I need to get up and running. Problem is I am a little low on funding at the moment and still need to get a PFC and intercooler. I was thinking of running a cheaper M-spec, or god-speed FMIC with it so I can get the project moving faster. anybody with t-78's been successful with cheaper inter cooler options?

I see it as the item I may be able to save a little money on and spend towards engine management and gauges instead.

any input?
an intercooler is an intercooler, all that really matters is the dimensions of it, and if it's doing it's job, if you're going to go cheap on an intercooler then use the rest of the money on a good EMS and either run the car on E85 or invest in a good water-injection/meth kit. hell i have a greddy knock off intercooler on my car and it does its job just fine.
Reply



All times are GMT -5. The time now is 12:37 AM.