Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > 911 / 930 Turbo & Super Charging Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: May 2005
Location: GTA
Posts: 154
Quote:
Originally posted by SC993c4
What's the expected HP of a TPC supercharger on a 95 c4 cab?
The supercharger adds about 90-100 crank HP to your 993.
__________________
P Tien
Assistant Director Team Bridgestone/R Squadron Canada
FS: Front Protection Bar 993/964 $95 shipped
Old 01-15-2007, 06:39 PM
  Pelican Parts Technical Article Directory    Reply With Quote #21 (permalink)
Registered User
 
Join Date: May 2005
Location: GTA
Posts: 154
Re: Upgraded TPC supercharger and stalls

Quote:
Originally posted by PorschOz
BTW - I have a black 1998 911 Cabriolet (all Gemballa upgrades)



Thanks!
Awesome car man! Those are my fav sideskirts... from the pic of my car you can see why =O) Mine too are all Gemballa (exterior) mods.

__________________
P Tien
Assistant Director Team Bridgestone/R Squadron Canada
FS: Front Protection Bar 993/964 $95 shipped
Old 01-15-2007, 06:45 PM
  Pelican Parts Technical Article Directory    Reply With Quote #22 (permalink)
Junior Member
 
Join Date: Jan 2007
Location: Newport Beach, CA
Posts: 5
That's bolting on to a stock car with no mods correct? I am very interested in doing this over turbo charging. Could I get 450-500hp+/- with other mods?
__________________
Andy
Old 01-15-2007, 06:47 PM
  Pelican Parts Technical Article Directory    Reply With Quote #23 (permalink)
Registered User
 
Join Date: May 2005
Location: GTA
Posts: 154
Quote:
Originally posted by SC993c4
That's bolting on to a stock car with no mods correct? I am very interested in doing this over turbo charging. Could I get 450-500hp+/- with other mods?
Yes, that is correct. You can se emore info on TPC website TPC WEBSITE

I currently have about 450HP with my setup. I pretty much walk stock 996 turbos and I beat my friend's X50 996 Turbo by a car and a half.

Having experience with building up my project... If you want 450+ HP sell your car and buy a turbo and chip it.

I've gone to 3.8L, Lower compression, RS heads Extrude Honed, RS intake and exhaust valves, RS cams, Pauter rods, eibach valve springs, Ti retainers, 55lbs/hr bosch injectors, unichip, wasted spark ignition, Cargraphic headers, Cargraphic sport cats, Fabspeed exhaust, stage IV ported superchager, 2.5" pulley @ 10psi, BMC CDA airbox, 75mm Throttle body... just ot name a few =O)

Hope that helps
__________________
P Tien
Assistant Director Team Bridgestone/R Squadron Canada
FS: Front Protection Bar 993/964 $95 shipped
Old 01-15-2007, 07:03 PM
  Pelican Parts Technical Article Directory    Reply With Quote #24 (permalink)
Junior Member
 
Join Date: Jan 2007
Location: Newport Beach, CA
Posts: 5
Nice! You have a sweet car! I just got beatup by a new M5 not too bad but...

So the reason that your saying look at a turbo is 'cause of cost savings? The only thing is that you can't get a cab in the turbo. One reason I bought a '95 C4 Cab.

Super charging is new to me so im very intreagued! I almost did it to my 540i sport but I decided to go Porsche.

Whats your 0-60 and other specs?
__________________
Andy
Old 01-15-2007, 09:29 PM
  Pelican Parts Technical Article Directory    Reply With Quote #25 (permalink)
Registered User
 
Join Date: May 2005
Location: GTA
Posts: 154
Quote:
Originally posted by SC993c4
Nice! You have a sweet car! I just got beatup by a new M5 not too bad but...

So the reason that your saying look at a turbo is 'cause of cost savings? The only thing is that you can't get a cab in the turbo. One reason I bought a '95 C4 Cab.

Super charging is new to me so im very intreagued! I almost did it to my 540i sport but I decided to go Porsche.

Whats your 0-60 and other specs?
Yup due to cost and the power you are looking for a turbo would be best. But if you love your cab then stick with it =O)

Not sure exactly what my 0-60 is.... 4. something low? My 1/4 mile is about 12.3sec 0-100mph in about 9sec

Don't worry you made a good choice going with the 993. You might want to consider a suspension upgrade after this mod.

I also wouldn't do the supercharger if you have a less than perfect motor. It should be strong and well maintained. Have your valve guides checked etc. On my strong stock motor my rods were stretching under pressure. You can change the rod bots to ARP or just get a set of Pauter forged rods.

PAS MAG article
__________________
P Tien
Assistant Director Team Bridgestone/R Squadron Canada
FS: Front Protection Bar 993/964 $95 shipped

Last edited by rsquad911; 01-16-2007 at 08:00 AM..
Old 01-16-2007, 06:54 AM
  Pelican Parts Technical Article Directory    Reply With Quote #26 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Registered User
 
97c4s's Avatar
 
Join Date: Jan 2007
Location: Somewhere, out there
Posts: 14
Quote:
Originally posted by SC993c4
What's the expected HP of a TPC supercharger on a 95 c4 cab?
Check tthe TPC website for all the exciting details.
__________________
1997 Arctic Silver C4S Factory Aerokit II, coilovers, Euro 993TT Sway Bars, Lightweight flywheel, intercooled supercharger
2008 BMW 535xiT Stage 2 Dinan ECU upgrade
2008 MINI Cooper (stock)
1988 Grand Prix White 930 Cab (sellers remorse)
Old 01-16-2007, 07:38 AM
  Pelican Parts Technical Article Directory    Reply With Quote #27 (permalink)
Registered User
 
onefstm's Avatar
 
Join Date: Feb 2005
Location: Franklin, TN
Posts: 442
Send a message via AIM to onefstm Send a message via Yahoo to onefstm
Has anyone checked their air fuel ratio (AFR) using a wideband O2 after installation of the supercharger? I am curious to see what everyone else is seeing with a computer tuned by TPC (split second or uni-chip). After installation of the Fabspeed bypasses while still running the split second box, I was seeing AFR's of 12.5 -12.8 on wide open throttle (using a new Inovate LM-1) . This concerned me so I decided to wait until I installed the uni-chip to retest the car. Now with the uni-chip, 6lb pulley, and bypasses, I am still seeing high 12's on WOT. I talked to Tom at TPC this morning who told me that this sounded fine to him and that anything up to 13.0 when measured through the left exhaust pipe sounded fine to him. He said that on these cars typically the right bank of cylinders would run richer and should show a 12.5 on that side.

I plan to post more about my initial impressions of the upgrade but am limited in time right now. This weekend, I plan to replace my fuel filter, clean the AFM, and possibly replace the fuel pump.
Old 01-17-2007, 06:12 AM
  Pelican Parts Technical Article Directory    Reply With Quote #28 (permalink)
Registered User
 
cturbo28's Avatar
 
Join Date: Feb 2005
Location: TN
Posts: 50
Re: Upgraded TPC supercharger and stalls

Quote:
Originally posted by PorschOz
Hey guys,

I recently upgraded my TPC supercharger to the latest version (changed to a smaller pulley/ belt, change the injector, and re-wired everything) as well as had a new SPEC clutch and lightened flywheel installed.

Runs like a champ but every now and then when I need to stop for a red light or stop sign, it stalls as I engage the clutch and come to a stop.

I know the kinetic energy is a lot less with this flywheel vs. stock so do I need to take it to a tuning shop to change my idle position or is there something they can do to the computer to alleviate this problem?


Thanks!
Have you installed a wide band to see what your air fuel ratio is??? Just interested in what TPC is shooting for in there tune. Also does your car have a "pop off valve". if so it might be leaking to cause your stalling problem.

----onefstm
BTW an A/F of 13.0 is not good for a forced induction car IMO.
CT

Last edited by cturbo28; 01-19-2007 at 06:50 PM..
Old 01-19-2007, 06:45 PM
  Pelican Parts Technical Article Directory    Reply With Quote #29 (permalink)
Registered User
 
Join Date: May 2005
Location: GTA
Posts: 154
My AFR goes form inital WOT 12.5AFR to full boost 11.5AFR

I'm using an AEM wide band AFR gauge at all times when drivin gmy car. I also have on order the Andial Intercooler temperature gauge to keep an eye on my intake temps. Should be 130*F or lower. My intercooler keeps that in check.

I want to do some more extensive tuning on my car getting a tighter AFR of 12.5-12. I need to find a dyno that is sutiable for the air cooler 993 engine.

Anything close to 13AFR I'd be scared! When I was using the Split second box on my 993 when it was stock I have AFR spikes of 14! Way too lean. Engine bogged and felt like _ _ _ T. All the tuning in the world couldn't fix the problem. Ended up going Unichip and things are great now.
__________________
P Tien
Assistant Director Team Bridgestone/R Squadron Canada
FS: Front Protection Bar 993/964 $95 shipped
Old 01-20-2007, 10:18 AM
  Pelican Parts Technical Article Directory    Reply With Quote #30 (permalink)
Registered User
 
onefstm's Avatar
 
Join Date: Feb 2005
Location: Franklin, TN
Posts: 442
Send a message via AIM to onefstm Send a message via Yahoo to onefstm
Thanks for the replies. I was able to sort out my lean condition and now have AFM's beween 11.3 and 12.0 under WOT.

On the stalling issue, I agree with Cturbo. I was told by TPC to keep the pop off valve in place but stack washers under the spring to keep it from opening under boost. We found out that the unit was still leaking at idle causing the system to take in extra air that was not being metered by the AFM.

With this leak fixed, the transition to boost is much smoother and the car has not yet stalled even with the lightweight flywheel.

You may need to put a caps on both pop off valve ports to ensure that the unit is not letting in air at vacuum.
Old 01-20-2007, 07:14 PM
  Pelican Parts Technical Article Directory    Reply With Quote #31 (permalink)
Registered User
 
Join Date: Mar 2003
Location: Edmonton
Posts: 530
onefstm,

What was the cause of the lean condition? What sort of AFR are you seeing at redline??

Cheers.
__________________
Matt B
'73 911E
www.octanenation.com/custom/1973-porsche-911/254/
Old 01-30-2007, 12:54 AM
  Pelican Parts Technical Article Directory    Reply With Quote #32 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 05:58 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2016 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.