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Need Some Power For An A4

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Old Apr 4, 2007 | 10:50 AM
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St. Jude Donor '07-'08-'09-'10-'11
Default Need Some Power For An A4

My bud as an 02 A4 273 rear and wants some SOTP power, he as already installed a vararam. He wants a little lope and some decent power, nothing over the top. I was thinking cam,tune and headers.
What have yall done or recomend? Thanx in advance
dlj
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Old Apr 4, 2007 | 11:02 AM
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Cam, TORQUE CONVERTER, tune, headers.

Not over the top:

American Racing Headers
Vigilante 2600-2800rpm converter
Thunder Racing 224/224 cam
Springs, retainers, valve locks, etc.

That cam is a long time proven performer, easy to tune, and very middle of the road. Not too big, not too small.

A 2600 or 2800 converter should be good w/ 2.73 gears. Bigger stalls will be very loose without a gear change.

What is the budget limit for parts?
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Old Apr 4, 2007 | 01:02 PM
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Originally Posted by will82
Cam, TORQUE CONVERTER, tune, headers.

Not over the top:

American Racing Headers
Vigilante 2600-2800rpm converter
Thunder Racing 224/224 cam
Springs, retainers, valve locks, etc.

That cam is a long time proven performer, easy to tune, and very middle of the road. Not too big, not too small.

A 2600 or 2800 converter should be good w/ 2.73 gears. Bigger stalls will be very loose without a gear change.

What is the budget limit for parts?

thats the line of was thinking. I had that cam in my c5 and lg if running a special on street headers. Probably not a stall though.
thanx for the input.
dlj
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Old Apr 4, 2007 | 01:05 PM
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Originally Posted by NTRBL33
thats the line of was thinking. I had that cam in my c5 and lg if running a special on street headers. Probably not a stall though.
thanx for the input.
dlj
that cam may be pushing it for a stock stall. If no stall swap, I'd play it safe and go a little smaller. TSP 220/220 on 116LSA or Comp 212/218 on 114 LSA for example.
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Old Apr 4, 2007 | 01:09 PM
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Originally Posted by will82
that cam may be pushing it for a stock stall. If no stall swap, I'd play it safe and go a little smaller. TSP 220/220 on 116LSA or Comp 212/218 on 114 LSA for example.
good advice
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Old Apr 4, 2007 | 01:18 PM
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Originally Posted by NTRBL33
My bud as an 02 A4 273 rear and wants some SOTP power, he as already installed a vararam. He wants a little lope and some decent power, nothing over the top. I was thinking cam,tune and headers.
What have yall done or recomend? Thanx in advance
dlj
Davis,
The SOTP feel will be with a TQ converter but if he doesn't want that.Does he have to stay with the 2.73's?3.15 or 3.42's will even if he doesn't do anything else make it feel like a different car.Couple that with the TQ verter.It will be much better.The TR cam will be good,along with a good set of LT's.Tune is a must.jerry
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Old Apr 4, 2007 | 01:29 PM
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Originally Posted by XKR100
Davis,
The SOTP feel will be with a TQ converter but if he doesn't want that.Does he have to stay with the 2.73's?3.15 or 3.42's will even if he doesn't do anything else make it feel like a different car.Couple that with the TQ verter.It will be much better.The TR cam will be good,along with a good set of LT's.Tune is a must.jerry
ya but this for Dave. Not sure if wants the TQ converter, will see.
you know how he is
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Old Apr 4, 2007 | 01:52 PM
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He needs to dump the 2.73:1 gears before doing anything.
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Old Apr 4, 2007 | 02:02 PM
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Originally Posted by RED99
He needs to dump the 2.73:1 gears before doing anything.
+1 There is NO better bang for the Buck on SOTP feeling IMO than Gears and a TC
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Old Apr 4, 2007 | 02:19 PM
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Torque converter nets most of the gains. Gears are good for .10 in 1/4, maybe .20

The Converter is what cuts 1/2 second or more. But gears will make the converter more drivable.
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Old Apr 4, 2007 | 03:15 PM
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Old Apr 4, 2007 | 06:09 PM
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Originally Posted by pimpjames
+1 There is NO better bang for the Buck on SOTP feeling IMO than Gears and a TC
3.73 gears and a 2800-3200 TC... 2.73's need to go.. Even if he descides on Headers,cam,heads... The 2.73 gears will still need to go
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Old Apr 4, 2007 | 06:22 PM
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yeah agreed with everyone above...gears are a must...tell him to grab a used set out of a someone with a z06 that did the swap, you can get a decent price on one and it will make the car a whole new beast.
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Old Apr 4, 2007 | 06:33 PM
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Get rid of the lame 2.73s You can not believe the difference in the car with gears and t/c
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Old Apr 4, 2007 | 07:18 PM
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Okay, Okay, Thanks, Davis. Headers, 2600 stall, 3:42 or 3:73 rear end is going in! I should've never taken you for a ride in my stock car!
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Old Apr 4, 2007 | 07:48 PM
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Just replace the whole differential with anything that comes with at least 3.15:1 gears from the factory. It's suppose to be a stronger case. Even the 3.15:1 gears isn't a bad ratio, which is what my car came with as an option. If you want to take long drives, cruise on the highway, 3.42:1 would be an excellent choice for an A4.
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Old Apr 4, 2007 | 08:28 PM
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My Vote:

First.....3.42"s and 2600-2800 TC That will give you more seat of pants then a H/C. (especially if you still had the 2.73's)

Second....Cam, valve springs, Harland Sharp kit to reinforce stock rockers, Hardened pushrods, Headers and a professional tune. (and also an improved air intake if you don't already have one)

PS. I'm running a Comp 222/224 566/568 112 on the stock converter. Idles at 750 with a nice lope. Works OK but boarderline, however my next mod will be a Vig. 2800.

Last edited by bcseitz; Apr 5, 2007 at 10:01 AM.
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Old Apr 4, 2007 | 08:36 PM
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Originally Posted by David426
3.73 gears and a 2800-3200 TC... 2.73's need to go.. Even if he descides on Headers,cam,heads... The 2.73 gears will still need to go
Definitely the way to go. Worked wonders for me just w/ the 3.42 swap on my A4 vert. If I did it again, I'd definitely go w/ a converter. My 2.73 was soooooo lame. Drove like a lincoln when u floored it. After the 3.42 at least I could light the tires when she hit 2nd at full throttle.


Last edited by berryj; Apr 4, 2007 at 08:39 PM.
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Old Apr 5, 2007 | 07:15 AM
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Originally Posted by RED99
He needs to dump the 2.73:1 gears before doing anything.
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Old Apr 5, 2007 | 07:17 AM
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TC, 3.42's and headers....thats all you need!

went from 13.2's to 11.8's with that along with a halltech SSM and a tune.
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