Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

1988 Twin Turbo Dyno Results - 5 liter - 825hp/755tq at the rear wheels

Thread Tools
 
Search this Thread
 
Old 09-17-2012, 10:52 PM
  #61  
GregBBRD
Rennlist
Basic Site Sponsor
 
GregBBRD's Avatar
 
Join Date: Feb 2005
Location: Anaheim
Posts: 15,221
Received 2,452 Likes on 1,459 Posts
Default

Todd:

Very impressive!

Great workmanship!
__________________
greg brown




714 879 9072
GregBBRD@aol.com

Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!





Old 09-18-2012, 03:33 AM
  #62  
mark kibort
Rennlist Member
 
mark kibort's Avatar
 
Join Date: Feb 2003
Location: saratoga, ca
Posts: 29,946
Received 141 Likes on 60 Posts
Default

awesome job!
Old 09-18-2012, 08:00 AM
  #63  
srupp1969
Instructor
 
srupp1969's Avatar
 
Join Date: Mar 2004
Location: Germany/Bavaria/Munich
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Todd,

ever thought to offer this as a complete kit to the addicted in the future, maybe as a limited series ?

Cheers
Stefan
Old 09-18-2012, 08:24 AM
  #64  
Courtshark
Rennlist Member
 
Courtshark's Avatar
 
Join Date: Apr 2007
Location: Crofton, MD
Posts: 1,941
Received 37 Likes on 20 Posts
Default

Stefan, as much as I'd love to see a kit for this myself, take a look at the install photos. They had to cut a hole behind the driver's pedals to accomodate turbo plumbing, and weld on replacement metal. Not impossible, but not simple, either. Also, the intake manifold is totally custom and obviously involved an incredible amount of work. I'm not sure that can be efficiently recreated. Todd will hopefully chime in on this, but I'm pretty sure this will be one-of-a-kind.
Old 09-18-2012, 08:39 AM
  #65  
rexpontius
Burning Brakes
 
rexpontius's Avatar
 
Join Date: Apr 2010
Location: The Netherlands
Posts: 835
Received 49 Likes on 25 Posts
Default

This looks IN-SANE! What a great work, and I really like the car looks pretty much stock on the outside.

Guess he does not have to worry about cold feet, with that big turbo under the pedals :-)
Old 09-18-2012, 08:40 AM
  #66  
srupp1969
Instructor
 
srupp1969's Avatar
 
Join Date: Mar 2004
Location: Germany/Bavaria/Munich
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

Courtshark,

fully understood upfront - there is a lot of additional work involved - no problem here.
I initially thought about a kit involving as many hard parts as possible (tbd) and guidance documentation.

Cheers
Stefan
Old 09-18-2012, 10:58 AM
  #67  
LT Texan
Rennlist Member
 
LT Texan's Avatar
 
Join Date: May 2001
Location: Austin, TX
Posts: 5,234
Received 5 Likes on 5 Posts
Default

The pictures are amazing.

How the hell does this car hold together with all that power? Amazing!
Old 09-18-2012, 01:00 PM
  #68  
BC
Rennlist Member
 
BC's Avatar
 
Join Date: Dec 2001
Posts: 25,132
Received 72 Likes on 53 Posts
Default

Originally Posted by LT Texan
The pictures are amazing.

How the hell does this car hold together with all that power? Amazing!
Simply because of proper tuning and no detonation.
Old 09-18-2012, 07:05 PM
  #69  
victor25
Rennlist Member
 
victor25's Avatar
 
Join Date: Oct 2009
Location: Michigan... Grand Rapids
Posts: 758
Likes: 0
Received 2 Likes on 1 Post
Default

Rock on Todd!!!! Nice work
Old 09-18-2012, 07:22 PM
  #70  
Roy928tt
Racer
 
Roy928tt's Avatar
 
Join Date: Jan 2009
Location: Adelaide South Australia'79 5spd twin turbo
Posts: 326
Likes: 0
Received 1 Like on 1 Post
Default

Awesome result, like Kuhn's all on a stock bottom end, Great stuff, Congratulations Todd.
Old 09-18-2012, 08:39 PM
  #71  
Todd T
928 Turbo Guru
Rennlist Member
Thread Starter
 
Todd T's Avatar
 
Join Date: Apr 2009
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Fabio421
Do you know which sensor you are using? Was it a Siemens YL5A-9C044-AA ? Are you using a dual return line on this car? The reason I ask is that as far as I know, this sensor is to be installed on the return side. The volume of fuel you need to push 800+ HP on E85 is immense and this sensor only has a #6 inlet. I would think that it would possibly act as a restriction if it was the only return path to tank and cause pressure creep. Sorry for all the questions but I'm in the process of building a flex fuel turbo 928. Nothing as extreme as what you built but Im eager to learn from others experience so that I don't unecessarily replicate a problem that someone else has already solved. Thanks
I am using a E85 sensor that I bought through haltech. You are correct with the -6 fitting to the sensor for the return line. To address those concerns which I also had, I took care of this by using a dual pump setup that is stage to only use the first pump up to 8psi then kicks on the second fuel pump using the sm4 to controll this. When the car hits 18 psi of boost the kenny bell boosta pump ups the voltage to 20v. this way the car uses the morjority of the fuel that is supplied by the pump without returning a bunch resulting in the pressure spike.
Old 09-18-2012, 08:40 PM
  #72  
Randy V
Addict
Lifetime Rennlist
Member
 
Randy V's Avatar
 
Join Date: Jun 2000
Location: Insane Diego, California
Posts: 40,430
Received 92 Likes on 62 Posts
Default

Clearly this is the work of evil forces.
Old 09-18-2012, 09:01 PM
  #73  
17prospective buyer
Three Wheelin'
 
17prospective buyer's Avatar
 
Join Date: Apr 2011
Location: Singhampton, Ontario/London, Ontario
Posts: 1,778
Likes: 0
Received 0 Likes on 0 Posts
Default

Wow... i have never seen a project that can exhaust all adjectives i can think of for how amazing it is. What a feat. Seriously, wow.
Old 09-18-2012, 09:54 PM
  #74  
Darien
Rennlist Member
 
Darien's Avatar
 
Join Date: Dec 2004
Location: Fort Worth, TX
Posts: 2,640
Received 240 Likes on 105 Posts
Default

OUTSTANDING!!
Old 09-18-2012, 11:42 PM
  #75  
LeRox
Pro
 
LeRox's Avatar
 
Join Date: Jun 2007
Location: Raleighwood
Posts: 552
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by SeanR
WTH is that out of? A Honda Civic?
Todd,

Great job and I applaud accomplishments. I don't recall how the CV issue arose and sorry for sharing on this thead.

SeanR, No Civic or CRV.... the 88 S4 w/ 92,874 miles ate the CV joint...


Quick Reply: 1988 Twin Turbo Dyno Results - 5 liter - 825hp/755tq at the rear wheels



All times are GMT -3. The time now is 04:56 AM.