Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
TCMdocs944's Avatar
 
Join Date: Dec 2002
Location: St. Petersburg, Florida
Posts: 1,990
Hey, my acceleration is crap whats up?

I just drove another 944 today and found out my acceleration is crap and has always been that way.

The car was an early 85 I am helping a friend check out. The thing is a 4/10 cosmetically and has recently had the head done.

It drives great and pulls strong throught the whole rpm range. Only difference that I could tell from mine is a throttle response cam......Maybe it has been chipped or something...dunno....


What is wrong with my car!?

It feels like I am dragging a trailer around compared to that car.

__________________
83 944 white w/Boxster wheels
Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
Old 10-06-2004, 03:59 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Oct 2002
Location: nashville,tn
Posts: 1,120
That car having a new head gasket, it could also have a re-worked head. It could not have been chipped without changing the air meter and putting a later dme in. Do a compression check on your car.
__________________
86 944 daughters
88 944 step-sons
07 Ranger 4x4

I have tons of spare parts, let me know what you need.
Old 10-06-2004, 04:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
TCMdocs944's Avatar
 
Join Date: Dec 2002
Location: St. Petersburg, Florida
Posts: 1,990
Chip could have been soldered in....no dme change necessary.

AFM stays stock with early chips as far as I know.

Mine has new head work/gasket as well and drives just like it did before the belt went.




I shall go forth and check mine compression however.
__________________
83 944 white w/Boxster wheels
Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
Old 10-06-2004, 04:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
Join Date: Mar 2002
Location: windsor, ontario
Posts: 809
Garage
Send a message via Yahoo to bigyagi
when did you last change your fuel filter? that can be a source of poor accelleration, especially if its been in there for a while!
bob.
__________________
1984 944 na.
FR. WILK power prom/dual chip.
2005 buick. daily beater
2002 grand am--better halfs ride.
olds 98 royal brougham--gone, but not forgotten.
Old 10-06-2004, 04:23 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
TCMdocs944's Avatar
 
Join Date: Dec 2002
Location: St. Petersburg, Florida
Posts: 1,990
Good call Big...never changed it and i don't know about the PO.

Has been at least 5 years I guess.

Has anyone noticed a big change by doing this?
__________________
83 944 white w/Boxster wheels
Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
Old 10-06-2004, 04:46 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
livewirevoodoo's Avatar
 
Join Date: Jul 2004
Location: New Haven, CT
Posts: 1,135
Garage
Quote:
Originally posted by TCMdocs944
Good call Big...never changed it and i don't know about the PO.

Has been at least 5 years I guess.

Has anyone noticed a big change by doing this?
A change, yes.. nothing remarkable however. The accel was smoother and the idle was noticably better.
__________________
''87 944na 85k
C02 / M158 / M418 / M425 / M431 / M454 / M533 / M650 / M946

'94 Oldsmobile 88 Royale (winter beater)

Its not what you drive, its what drives you.
Old 10-06-2004, 06:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
Registered User
 
Macfreak007's Avatar
 
Join Date: Jan 2003
Location: Louisville, KY
Posts: 633
Send a message via AIM to Macfreak007
list your replacement dates for: Plugs, Wires, Distributor cap, rotor, cleaning the AFM, FPR, Injectors, does the car run totally smooth? the fuel filter made a rather large difference on my car personally, try that first!
__________________
'84 944na -- Sold
'84 944na -- Sold
'85 944na, -- Sold
Old 10-06-2004, 07:13 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
TCMdocs944's Avatar
 
Join Date: Dec 2002
Location: St. Petersburg, Florida
Posts: 1,990
Wires - dont know

Cap and Rotor - new

AFM - suspect - opened it up to do the wiper fix and might have wiper fuxed it....tommorow I will tackle it

Injectors - 6 months ago new seals and tested

FPR - no surging

Vacuum - good

Idle - 950 nose on

Smooth - but not through the entire rpm range.


Feel - like it bogs a bit esp. cold.

Symptoms all disappear after an interstate drive of 2 hours....Get off the interstate and the damn thing thinks its a race car??
__________________
83 944 white w/Boxster wheels
Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
Old 10-07-2004, 12:14 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
gearhead290's Avatar
 
Join Date: Dec 2002
Location: South Dakota
Posts: 1,131
Send a message via AIM to gearhead290
I ported and polished my head along with a 3 angle valve job while it was off, didn't see a damn thing out of all that work.
__________________
95 240sx-track slut w/ too much done to list
87 944 n/a-old "toy" that broke too much
Old 10-08-2004, 10:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Deplorable Member
 
Porsche-O-Phile's Avatar
 
Join Date: Feb 2004
Location: A Rock Surrounded by a Whole lot of Water
Posts: 32,573
Garage
Check for vaccum leaks carefully. You claim it's "good", but vaccum leaks can be very insidious. I had a hairline (and I do mean "hairline") crack in the Y connector to the fuel pressure regulator and dampener. The car ran like crap until I replaced it. BIG difference. I'd strongly recommend going to the all-silicone lines from Lindsey if you have the $35 to spend on it. Best $35 I ever spent.

__________________
'74 911 Targa 2.7 (in storage, hoping to finish "someday"), 2001 Mercedes SLK 320 (with a few AMG fun bits), '85 BMW K100, a few surfboards

Black Cars Matter
Old 10-09-2004, 10:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 08:17 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - 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.