Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

For those that have drag raced your 951

Thread Tools
 
Search this Thread
 
Old 08-14-2002, 03:24 PM
  #1  
omniphil
Instructor
Thread Starter
 
omniphil's Avatar
 
Join Date: Jul 2002
Location: New Hampshire
Posts: 178
Likes: 0
Received 8 Likes on 6 Posts
Post For those that have drag raced your 951

Just wondering what are stock times for a 86' 951, also what about with stage 2 chips installed?
Just curious because I will probably never bring my car to the drags, I mostly autocross.

I pick up my 86' 951 this weekend, I can hardly wait! I already had stage 2 chips installed and I figured the next upgrade after that is the exhaust. The car already has a K&N drop in filter. Whats my next logical performance upgrade? map/maf?
Old 08-14-2002, 04:14 PM
  #2  
Russ Murphy
Drifting
 
Russ Murphy's Avatar
 
Join Date: Dec 2001
Location: St. Louis
Posts: 2,058
Likes: 0
Received 0 Likes on 0 Posts
Post

15.1 @ 102mph for mine w/stock chips but with cat bypass and custom catback exhaust. Lots of wheelspin, like even in 3rd gear.
Old 08-14-2002, 06:29 PM
  #3  
ArcticCzar
Racer
 
ArcticCzar's Avatar
 
Join Date: Apr 2002
Location: Lenexa, Kansas
Posts: 336
Likes: 0
Received 0 Likes on 0 Posts
Post

A test pipe would by my suggestion for the next upgrade.
Old 08-14-2002, 07:44 PM
  #4  
omniphil
Instructor
Thread Starter
 
omniphil's Avatar
 
Join Date: Jul 2002
Location: New Hampshire
Posts: 178
Likes: 0
Received 8 Likes on 6 Posts
Post

Forgive me for not being knowledgable yet, but a test pipe is a cat bypass pipe right? I was planning on doing the entire exhaust system from turbo to tail pipe with 3 inch. So I think that would cover the test pipe
Old 08-14-2002, 08:08 PM
  #5  
RAD951
Racer
 
RAD951's Avatar
 
Join Date: May 2002
Location: Nashville/Orlando
Posts: 356
Likes: 0
Received 0 Likes on 0 Posts
Post

How come the factory and road test results indicate a 13.9 sec 1/4 mile and a 5.1 0-60mph for a stock 1986 951??? And we see keep on seeing 15 sec 1/4 miles posted by people?
Old 08-14-2002, 08:35 PM
  #6  
jurg
Racer
 
jurg's Avatar
 
Join Date: Aug 2001
Location: Miami. FL
Posts: 465
Likes: 0
Received 1 Like on 1 Post
Post

Well my car has intake,full exhaust no catalytic,chip,and raised boost.I was running 14.4@104mph
Good trap,Bad E.t Fine by me,better for the highway
Old 08-14-2002, 09:08 PM
  #7  
rage2
Three Wheelin'
 
rage2's Avatar
 
Join Date: Sep 2001
Location: Calgary, Alberta, Canada
Posts: 1,596
Likes: 0
Received 0 Likes on 0 Posts
Post

[quote]Originally posted by RAD951:
<strong>How come the factory and road test results indicate a 13.9 sec 1/4 mile and a 5.1 0-60mph for a stock 1986 951??? And we see keep on seeing 15 sec 1/4 miles posted by people?</strong><hr></blockquote>

Most people don't abuse their cars by launching like the magazines do to get the numbers. Judging from the 102+mph trap speeds, I'll bet all the launches are 1500rpm clutch slips, floor it, lag, and go.

As for hard launches, I used to launch at 5500rpm, drop the clutch, wheelspin stops around 3300rpm so boost is built for a good launch, then really fast power shift through the gears. Unfortunately, I went through 3 sets of CV joints (stock), as well as a tranny. 1st and 2nd gear both chipped a tooth.
Old 08-14-2002, 09:34 PM
  #8  
SamGrant951
Race Director
 
SamGrant951's Avatar
 
Join Date: May 2001
Location: Indianapolis, IN
Posts: 10,862
Received 34 Likes on 29 Posts
Post

13.7 @ 105/107 (cant remeber-i have it written down somewhere. pretty sure it was 107) on a gtech with a 0-60 of 5.5
chips/lbe/testpipe/exhaust
Old 08-14-2002, 10:11 PM
  #9  
Doug944s2
Instructor
 
Doug944s2's Avatar
 
Join Date: Jun 2002
Location: Newporsche Beach, California
Posts: 230
Likes: 0
Received 0 Likes on 0 Posts
Post

Road & Track's original road test of the '86 Turbo shows a 6.0-sec. 0-60 time and a quarter-mile of 14.6 @ 97.5 mph. I found that in an issue that compared it to the Corvette (5.8 and 14.4 @ 96.0) and RX-7 Turbo (6.6 and 15.2 @ 92.5). The 944's trap speed vs the Corvette's is really impressive!
Old 08-14-2002, 10:18 PM
  #10  
DanD
Addict
Rennlist Member

 
DanD's Avatar
 
Join Date: May 2001
Location: Westcoast
Posts: 1,292
Likes: 0
Received 8 Likes on 3 Posts
Post

The best launch I've had happened to be on a Gtech run. Requires about 4k rpm then half engage the clutch to get the car moving, then slowly let it out to keep the car from bogging. It can't be good for the clutch, but it's great for launches. Anything more will be wheelspin and anything less will involve bogging. That G-tech run was 4.8 0-60 and 13.2 at 112mph. <img src="graemlins/burnout.gif" border="0" alt="[burnout]" /> (Gtech mph figures are inflated by 3 or 4 mph)

On contrast, I tried an actual dragstrip once. And try as I did, I could not get the same launch. I think the best time was about 14.8 at 96mph. Always had a bog. Others too have tried and failed to get decent times a the drag strip.

Why? you ask?
I love our all purpose car. It hauls groceries, golf clubs, lumber, stuff to the dump, Autocrosses, Time Trials, 1/4 mile (if you dare), and someday a Silverstate high speed ralley. Oh, and it gets me to work too!

Because someone will ask, here's my list..

DanD 86 951 *2
K&N cone intake, HR MAF Stage I (upgraded to III), custom hard pipes, ARC II fuel controller, ARM1 air/fuel meter, AutoThority Stage II chips, APEXi AVC-R electronic boost controller, shimmed wastegate, free flowing PowerEffect adjustable muffler. Autopower rollbar, 400# front Koni adjustable shocks, 300# rear(Hal/QA1) + 25.5mm torsion bars, , aggressive track alignment.

2nd car, Stock so far...
<a href="Http://members.rennlist.org/dan10101" target="_blank">Http://members.rennlist.org/dan10101</a>
Old 08-15-2002, 01:08 AM
  #11  
Turby
Banned
 
Turby's Avatar
 
Join Date: Apr 2002
Location: Beantown
Posts: 985
Likes: 0
Received 0 Likes on 0 Posts
Post

12.9...........I went through 2 trannys 2 torque tubes and lots of CV's, joints, and bolts. Lots of practice is needed to do it right on these cars, and lots of $$$. I dont remenber the trap speed, but this car was very modified.
Old 08-15-2002, 02:10 AM
  #12  
Danno
Race Director
 
Danno's Avatar
 
Join Date: Jul 2001
Location: Santa Barbara, CA
Posts: 14,075
Likes: 0
Received 3 Likes on 3 Posts
Post

Same here, in my quest for fast 1/4-mile times, I went through tires, wheel-bearings, CV-joints, torque-tube bearings, clutch, etc. in less than one year! Best I got was a 13.2sec@1xxmph. Don't recall what the MPH was exactly, but I had to shift into fourth for a couple of seconds. After adding up the totals, I realized that roadracing on real racetracks would cost less and give a whole lot more fun. I don't think the Porsche factory teams ever did any drag-racing??? <img src="confused.gif" border="0">
Old 08-15-2002, 02:19 AM
  #13  
badcoupe
Three Wheelin'
 
badcoupe's Avatar
 
Join Date: Jul 2002
Location: Connersville IN
Posts: 1,807
Likes: 0
Received 0 Likes on 0 Posts
Post

13.40@107 huntley stage 2 chips manual boost controller sfr catcack and a K&N 3 bar fixed regulator. 86 951 with 137k on the clock. VP C-12 race gas and bald tires! Keep in mind I drag race alot (even though thats not what this car is for!)
Old 08-15-2002, 02:50 AM
  #14  
Robby
Addict
Rennlist Member

 
Robby's Avatar
 
Join Date: Jun 2001
Posts: 3,953
Likes: 0
Received 0 Likes on 0 Posts
Post

I've run a 14.6 @ 102.7 (G-tech) in my turbo S- I only tried twice, as my car wasn't in the best condition AND, I did a slightly soft launch w/lift throttle shifts that were relatively slow- I KNOW I could have lost several more tenths if I'd tried hard- anyway, the Turbo S was always quoted (by Porsche) to run a 13.5, but never did- the fastest you'll ever see tested was a 13.9 (C&D) and THAT was w/the shorter FD which took them half way through 4th as opposed to barely into, like Danno said. Even so, that gearing still didn't help 0-60 (5.5) as the shift to third came right BEFORE 60. Anyway, common times for a BRAND NEW Turbo S is 14.2 @ ~101. A well broken in one could possibly hit ~13.9 or so, but to hit a 13.5 would be REALLY stretching it- of course, w/aftermarket chips, etc (and a bottomless wallet), the sky's the limit. One of the best I've heard of is Kurt's JM built turbo charged 3.1L 968 enigne- he's gone well into the 130's w/horrible launches (he's only messsed w/it a few times)- he's posts on this list every now and then- he's also in the SCC contest- I've meant to e-mail him to find out how that's going- it's an impressive car- 968 trans, etc- I think it's an '86...
Old 08-15-2002, 02:55 AM
  #15  
jseel
Track Day
 
jseel's Avatar
 
Join Date: Aug 2002
Location: morgantown pa
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Post

ive run 14.8 at 97 mph,at 12 psi and the minor stuff listed below, but i just switched from a mbc to ball valve boost controller and i get full boost much sooner. friday night i will have a better time (i hope), still at 12-13 psi. i agree about the launch, i take it easy. to get factory numbers you must fry the clutch.


Quick Reply: For those that have drag raced your 951



All times are GMT -3. The time now is 05:41 PM.