Notices
924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)
Sponsored by:
Sponsored by:

Mods to Increase N/A power???

Thread Tools
 
Search this Thread
 
Old 08-25-2002 | 12:43 PM
  #1  
ast2000's Avatar
ast2000
Thread Starter
Instructor
 
Joined: Aug 2001
Posts: 132
Likes: 0
From: Denver CO
Angry Mods to Increase N/A power???

I have an 87 N/A I want to increase the HP without sacrificing reliablity (OK this is sort of an oxy-moron but I don't want the headaches of a turbo). This car will be driven daily and used at 3-4 open track events a year.

So far I have a K&N air filter, rodded out cat and a chip. I am considering the following:
Free flow muffler
2 1/2" exhaust, headers back
multi-spark ignition w/ coil
bored out TB
throttle response cam ????

Are there any other suggestions?

Of these, from which can I expect the most improvement?

Most P-people use MSD-6A's, there are at least four mfg's of these boxes, are any of the others better?
Old 08-25-2002 | 01:17 PM
  #2  
Dan Gallagher's Avatar
Dan Gallagher
Drifting
 
Joined: Jun 2002
Posts: 2,015
Likes: 0
From: Long Island, New York
Post

the throttle responnse cam doesnt actually ad power, but it makes the car feel much nicer.

the only thing thats going to give you power in a na would be a turbo or a supercharger ($$$$$) or atleast thats how it seems to me.
Old 08-25-2002 | 03:48 PM
  #3  
PCinDC's Avatar
PCinDC
Rennlist Lifetime Member
Lifetime Rennlist
Member
 
Joined: Jul 2002
Posts: 2,130
Likes: 0
From: Northern Virginia
Post

You will see an increase in power with the mods that you mention in your post, however, you still won't be on par with our turbo brethren. If you really want power, supercharge it.
The stuff you are talking will give you a nice seat of the pants increase, however for the $1000 dollars you spend you _might_ get 15-20 horses out of it. And that is very optimistic.

Paul
Old 08-25-2002 | 03:54 PM
  #4  
jim968's Avatar
jim968
Three Wheelin'
 
Joined: May 2001
Posts: 1,744
Likes: 2
From: Asheville,NC (Don't move here!!!)
Post

Short of the $$$ supercharger, there's just not much 'cheap' horsepower for an na; put the car on a serious diet if you wnat more go-fast. Dump the rear seat, spare tire, jack, & tools (gotta cell phone?), and all the extra junk you normally carry.

Jim... and get a skinny girlfriend...
Old 08-25-2002 | 04:08 PM
  #5  
Dan Gallagher's Avatar
Dan Gallagher
Drifting
 
Joined: Jun 2002
Posts: 2,015
Likes: 0
From: Long Island, New York
Post

lose the girlfriend, or carry a picture.
Old 08-25-2002 | 04:09 PM
  #6  
Geo's Avatar
Geo
Race Director
 
Joined: Oct 2001
Posts: 10,033
Likes: 1
From: Houston, TX USA
Post

[quote]Originally posted by ast2000:
<strong>Are there any other suggestions?
</strong><hr></blockquote>

Cam.
Old 08-25-2002 | 11:29 PM
  #7  
ram_one's Avatar
ram_one
Racer
 
Joined: Mar 2002
Posts: 414
Likes: 0
From: New Jersey
Post

Get a MAF!
Old 08-25-2002 | 11:32 PM
  #8  
Danno's Avatar
Danno
Race Director
 
Joined: Jul 2001
Posts: 14,075
Likes: 3
From: Santa Barbara, CA
Thumbs up

Hey ram_one, you have a dyno-chart of your car with all those modes? I'd be interested in seeing a before & after comparison. <img src="graemlins/xyxwave.gif" border="0" alt="[bigbye]" /> <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />
Old 08-25-2002 | 11:36 PM
  #9  
Dave in Chicago's Avatar
Dave in Chicago
Rennlist Member
 
Joined: May 2001
Posts: 2,890
Likes: 274
From: Chicago Area
Post

Increase corner exit speed...
Old 08-25-2002 | 11:46 PM
  #10  
ram_one's Avatar
ram_one
Racer
 
Joined: Mar 2002
Posts: 414
Likes: 0
From: New Jersey
Post

Sad to say I do not have a before. But I guess there are ideas for stock numbers are ou tin abundance.
Anyhow, I hope to have an after number within a few weeks if Adrial can pull off another NE dyno day.
I'll post the results.
Old 08-26-2002 | 01:52 AM
  #11  
John Anderson's Avatar
John Anderson
Burning Brakes
 
Joined: Nov 2001
Posts: 1,084
Likes: 0
From: San Diego
Post

I might be able to help you out on this :-)

210 at the tires for less than chips, MAF kit, K&N conversion, MSD ignition etc etc.

11.5:1 compression 3.1 liter NA motor. One year warranty.

YOu can spends thousands over the years, or just by the motor once and get the power now. If you don't like the motor, send it back, your money will be refunded.

Short sweet and to the point :-)

Take Care.
Old 08-26-2002 | 02:04 AM
  #12  
triscadek's Avatar
triscadek
Addict
Rennlist Member

 
Joined: Jan 2002
Posts: 2,590
Likes: 0
From: R-U-N-N-O-F-T
Post

What would you get out of a cam, 5 angle valve job and port and polish?
Old 08-26-2002 | 09:43 AM
  #13  
Peter K.'s Avatar
Peter K.
Racer
 
Joined: Aug 2002
Posts: 329
Likes: 0
From: Ric, VA
Post

I think RAM ONE has inadvertantly unleashed the true meaning of AMAFs name..... read his post... a MAF....
Old 08-26-2002 | 10:46 AM
  #14  
Z-man's Avatar
Z-man
Race Director
 
Joined: Jan 2002
Posts: 10,170
Likes: 1
From: North NJ, USA
Post

[quote]Originally posted by Dave Swanson:
<strong>Increase corner exit speed...</strong><hr></blockquote>
That's my suggestion as well! If you are ready for it: maybe it's time to rework the suspension: coil overs, springs, progressive shocks, thicker sways: these may not get you the ummph you need on the straights, but you can more than make up for it in the corners!

-Z-man.
Old 08-26-2002 | 12:15 PM
  #15  
ram_one's Avatar
ram_one
Racer
 
Joined: Mar 2002
Posts: 414
Likes: 0
From: New Jersey
Post

John Anderson,
All right, I'll bite. Send me an e-mail on the details of this engine.
Couple of questions: Will it work with my MAF? Can you use my head (just done at Huntley) and cam (from Jon Milledge) or is a replacement necessary?


Quick Reply: Mods to Increase N/A power???



All times are GMT -3. The time now is 07:39 PM.