Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

3 Pages V  1 2 3 >  
 Reply to this topicStart new topic
> Driving a Turbo Porsche at Lime Rock, for you enjoyment
TimT
post Oct 16 2004, 08:57 PM
Post #1


retired
****

Group: Members
Posts: 4,033
Joined: 18-February 03
From: Wantagh, NY
Member No.: 313
Chief instructor from a local BMW club called and needed instructors. I really dont like to turn down free track time (IMG:style_emoticons/default/cool_shades.gif) so my friend and I drove up for the day.. My 914 stayed home and took a break.... so

heres a lap at Lime Rock in a 2004 Porsche 935. I know they havent made 935s' for about 20 years, but this is the beast we built. video just cant capture the sensation..

ENJOY
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Oct 16 2004, 09:12 PM
Post #2


914 Wizard
**********

Group: Members
Posts: 11,623
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
Is that a pickup truck at the end..
now I know how all the GT 1/2/3 guys feel when they blow by my "I" class stock car running in exhibition...

wow...

brant
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TimT
post Oct 16 2004, 09:16 PM
Post #3


retired
****

Group: Members
Posts: 4,033
Joined: 18-February 03
From: Wantagh, NY
Member No.: 313
Yea thats an ex-Nascar truck... you can pick them up for not to much dinero.

went by him like he had the e-brake on (IMG:style_emoticons/default/laugh.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Aaron Cox
post Oct 16 2004, 09:20 PM
Post #4


Professional Lawn Dart
***************

Group: Retired Admin
Posts: 24,541
Joined: 1-February 03
From: OC
Member No.: 219
Region Association: Southern California
the woosh from the turbos is incredible
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Oct 16 2004, 09:48 PM
Post #5


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
laps go by quickly in that car (IMG:style_emoticons/default/w00t.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeroen
post Oct 16 2004, 09:50 PM
Post #6


914 Guru
*****

Group: Members
Posts: 7,887
Joined: 24-December 02
From: The Netherlands
Member No.: 3
Region Association: Europe
BHOOOOYAAAAAAH!!!!!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Oct 16 2004, 10:02 PM
Post #7


Resident German
*************************

Group: Admin
Posts: 41,638
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
best thing about the video, i can see that you took it easy and you're still passing them like there were standing still ...

like on that downhill right hand turn, you were just coasting through there,
that sounds like a schweet car!

(IMG:style_emoticons/default/smilie_pokal.gif) Andy
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TimT
post Oct 16 2004, 10:07 PM
Post #8


retired
****

Group: Members
Posts: 4,033
Joined: 18-February 03
From: Wantagh, NY
Member No.: 313
QUOTE
like on that downhill right hand turn


the diving turn is a real butt cheek clencher


In some cars after you pass under the bridge you just tap turn gas..in tis car you just gas ( or as Andy says coast ) LOL simply amazing..
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914helo
post Oct 16 2004, 10:42 PM
Post #9


Member
**

Group: Members
Posts: 235
Joined: 29-September 04
From: Southern Utah
Member No.: 2,859
Region Association: None
WoW! What a beautiful sound (IMG:style_emoticons/default/clap56.gif) Looks like a lot of fun.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Andyrew
post Oct 16 2004, 11:57 PM
Post #10


Spooling.... Please wait
**********

Group: Members
Posts: 13,376
Joined: 20-January 03
From: Riverbank, Ca
Member No.: 172
Region Association: Northern California
How much boost you running with that turbo? Doesnt sound like it fully spools up... (ie you can still hear the turbo under full accell..

Very nice! I'd love to see more...

Andy, his "coasting" was because if he gave it more throttle, and allowed the boost to come on he would have gotten very tail happy... Turbo's will just spin like a top when the boost comes on durring a high G corner..... lol, just watch me! (or dad... He'll be in fresno tomorrow... I got work... Grrrrrrrrrr)

Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914_1.8t
post Oct 17 2004, 12:19 AM
Post #11


Member
**

Group: Members
Posts: 302
Joined: 3-June 04
From: East Bay
Member No.: 2,149
QUOTE(Andyrew @ Oct 16 2004, 09:57 PM)
How much boost you running with that turbo? Doesnt sound like it fully spools up... (ie you can still hear the turbo under full accell..

Very nice! I'd love to see more...

Andy, his "coasting" was because if he gave it more throttle, and allowed the boost to come on he would have gotten very tail happy... Turbo's will just spin like a top when the boost comes on durring a high G corner..... lol, just watch me! (or dad... He'll be in fresno tomorrow... I got work... Grrrrrrrrrr)

Andrew

Can you please post some info on the car's specs..

what turbo(s) and engine?
how much boost?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Stutgart46
post Oct 17 2004, 08:18 AM
Post #12


Stutgart46
**

Group: Members
Posts: 396
Joined: 20-November 03
From: Houston, TX
Member No.: 1,365
Do you have any pics you can include with the specs?
Great video.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TimT
post Oct 17 2004, 08:25 AM
Post #13


retired
****

Group: Members
Posts: 4,033
Joined: 18-February 03
From: Wantagh, NY
Member No.: 313
the car only was running 0.7 bar. we tried to run it at 1.0 ,1.2, and 1.4 bar but it was bleeding off boost, we think the bow-off-valves arent holding, or the turbo just cant make that much boost.

specs:

engine:

3.8 Lt
962/935 hybrid cams
twin plugged
staged injection (12 injectors)
Haltech E6X engine managment
cross drilled crank
chebby nascar bearings
garret t40 hybrid turbo



trans:

short geared G50
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TimT
post Oct 17 2004, 08:35 AM
Post #14


retired
****

Group: Members
Posts: 4,033
Joined: 18-February 03
From: Wantagh, NY
Member No.: 313
The cars is built on a 1979 930 tub

ERP susp bits
Revalved bilsteins
14" rear tires
12" fronts


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Oct 17 2004, 09:05 AM
Post #15


I am Tangerine Racing
*****

Group: Members
Posts: 7,925
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
I have to bust my ass to do 1:01s with my N/A 1.8L. You do it even having to wait for slowpokes to get out of the way. It looks so easy with a little boost. (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Andyrew
post Oct 17 2004, 11:04 AM
Post #16


Spooling.... Please wait
**********

Group: Members
Posts: 13,376
Joined: 20-January 03
From: Riverbank, Ca
Member No.: 172
Region Association: Northern California
Tim, when we put our bigger turbo on the 944, we ran into a problem of the engine not holding the boost and blowing it out the main seal or whatnot. We never did figure it out.

driving the car, if you pushed the throttle down all the way, it would blow it out, and you wouldnt get much power...

BUT if I (dad couldnt do this correctly) pushed it maybe 80%, the engine could hold that, and hold about 17psi, Producing at least 370hp.. (it should make at least 420 with that turbo...)

I know we would blow oil out.....

Anything sound familiar?

BTW, very nice car!
Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914_1.8t
post Oct 17 2004, 11:10 AM
Post #17


Member
**

Group: Members
Posts: 302
Joined: 3-June 04
From: East Bay
Member No.: 2,149
QUOTE(TimT @ Oct 17 2004, 06:25 AM)
the car only was running 0.7 bar. we tried to run it at 1.0 ,1.2, and 1.4 bar but it was bleeding off boost, we think the bow-off-valves arent holding, or the turbo just cant make that much boost.

specs:

engine:

3.8 Lt
962/935 hybrid cams
twin plugged
staged injection (12 injectors)
Haltech E6X engine managment
cross drilled crank
chebby nascar bearings
garret t40 hybrid turbo



trans:

short geared G50

Do you have a compressor map for the T40?
But i think it should easily be able to be very efficient at that boost level. Probobly some other issue.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
iamchappy
post Oct 17 2004, 11:12 AM
Post #18


It all happens so fast!
****

Group: Members
Posts: 4,893
Joined: 5-November 03
From: minnetonka, mn
Member No.: 1,315
Region Association: Upper MidWest
It sounds like the wastegate is opening and the turbo is at full boost most of the time.
my car sounds the same when the wastegate opens.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Andyrew
post Oct 17 2004, 11:21 AM
Post #19


Spooling.... Please wait
**********

Group: Members
Posts: 13,376
Joined: 20-January 03
From: Riverbank, Ca
Member No.: 172
Region Association: Northern California
Looking at the video I'd say you could get another 75 to 150 more hp if you got the boost workin right...

I Think Chappy's right about the wastgate though....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Aaron Cox
post Oct 17 2004, 11:22 AM
Post #20


Professional Lawn Dart
***************

Group: Retired Admin
Posts: 24,541
Joined: 1-February 03
From: OC
Member No.: 219
Region Association: Southern California
QUOTE(Andyrew @ Oct 17 2004, 10:21 AM)
Looking at the video I'd say you could get another 75 to 150 more hp if you got the boost workin right...

of course, this is your "expert opinion" (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

3 Pages V  1 2 3 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 16th May 2024 - 03:22 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...