1998 A4 Dyno let down
Thread Starter
Teching In
Joined: Sep 2004
Posts: 8
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From: Gadsden, AL
1998 A4 Dyno let down I have a 1998 Z28 A4(124K miles) with a Hooker Cat back, Pacesetter LT's, TSP ORY, LS6 intake, lid, descreened MAF. Had it dyno'd this past weekend, and only dyno'd 308 HP, 330 TQ on the baseline, and tuned up to 326 HP, 339 TQ. Although it feels much better after the tune, I was expecting higher #'s. Was I wrong to expect #'s closer to 340 HP and 350 TQ? BTW,Dyno was done at Walker Dynotune on a Dynojet Dyno in Trussville, AL.
Last edited by RollinThunder98; Apr 4, 2005 at 12:26 AM. Reason: Add info
Originally Posted by RollinThunder98
I have a 1998 Z28 A4(124K miles) with a Hooker Cat back, Pacesetter LT's, TSP ORY, LS6 intake, lid, descreened MAF. Had it dyno'd this past weekend, and only dyno'd 308 HP, 330 TQ on the baseline, and tuned up to 326 HP, 339 TQ. Although it feels much better after the tune, I was expecting higher #'s. Was I wrong to expect #'s closer to 340 HP and 350 TQ? BTW,Dyno was done at Walker Dynotune on a Dynojet Dyno in Trussville, AL.
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Originally Posted by RollinThunder98
No stall yet, any opinions on a TCI SSF 3500 though?
Also with a stall your #'s will be even lower but its due to the stall.
Yes, yes and yes on the stall. You should have done that first. I wasn't sure either about doing a stall. But all I can say now is WOW.
those numbers sound good to me, any major problems yet with those miles? i love my tci, its just alot harder to get a good launch without spinning. with the tc your dyno will be lower but you will be able to feel more power when driving
Thread Starter
Teching In
Joined: Sep 2004
Posts: 8
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From: Gadsden, AL
Originally Posted by badata
those numbers sound good to me, any major problems yet with those miles? i love my tci, its just alot harder to get a good launch without spinning. with the tc your dyno will be lower but you will be able to feel more power when driving
12 Second Club
Joined: Jan 2003
Posts: 303
Likes: 2
From: Buffalo NY
I have a 1998 A4 with 90,000 on it....
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
Thread Starter
Teching In
Joined: Sep 2004
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From: Gadsden, AL
Originally Posted by mshadow
I have a 1998 A4 with 90,000 on it....
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
Last edited by RollinThunder98; Apr 4, 2005 at 01:11 AM.
Originally Posted by RollinThunder98
I had a set of Taylor wires and NGK plugs put on at about 105K. Have not changed fuel filter or did top end cleaner.
On The Tree
Joined: Dec 2003
Posts: 184
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From: FS Arkansas
Originally Posted by BlueSix
Your numbers are fine for your mods. You have an A4, they don't dyno as high as the M6 cars.
Put a stock screened MAF back in though.
Put a stock screened MAF back in though.
Originally Posted by mshadow
I have a 1998 A4 with 90,000 on it....
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
I made 343rwhp 362tq Pacesetters LTs, Trueduals, Descreened MAF, Jantzer TB, ASP pulley, LS1 intake...
You got new plugs/wires/fuel filter/do a top end cleaner?
For your reference, before the stall I put down 325/34x. After the stall and descreened MAF (for nitrous) I put down 305/33x but the car was MUCH faster.
Your numbers don't sound far off. Go to the track and run it the way it sits. Then get a stall and lose some hp, then run it again. Tell me dyno numbers don't lie...
TECH Enthusiast
Joined: Sep 2004
Posts: 564
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From: Omaha, NE
"Tell me dyno numbers don't lie..."
They don't, if you have a good dyno and knowledgeable operator who educates the public. When comparing TC stalls, some give a graph comparison of the force/MPH of the tire's patch at the dyno's roller. This gives a very clear picture of how the drive train torque multipication derived from different stalls helps acceleration. Being able to get the RPMs up on the engines HP curve quicker always translates to more TQ at the rear axle and more forward force at the tire's contact patch, if done properly.
They don't, if you have a good dyno and knowledgeable operator who educates the public. When comparing TC stalls, some give a graph comparison of the force/MPH of the tire's patch at the dyno's roller. This gives a very clear picture of how the drive train torque multipication derived from different stalls helps acceleration. Being able to get the RPMs up on the engines HP curve quicker always translates to more TQ at the rear axle and more forward force at the tire's contact patch, if done properly.