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02 WS6 228R and bolt ons

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Old 09-20-2017, 10:49 PM
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Default 02 WS6 228R and bolt ons

Hi all.

I appreciate the guesses.

Part of the reason I bought my 2002 WS6 A4 last year was because my butt-dyno told me it was the strongest stock LS1 I'd ever personally driven. My suspicions were borne out when it pulled 314.9RWHP and 337RWTQ on the local dyno, bone stock right down to the air filter. As a comparison, my stock A4 2000 Firehawk pull 288RWHP on this exact same dyno. Note this was STD and not SAE, so knock off 4% or so from those numbers.

Anyway, I now have some goodies sitting in my garage, ready to install. It'll be October before I get this done, but I wanted to know what you guys thought. Keep in mind this is strictly a DD car - I drive it to work every single day until the snow comes - then it sits in the garage. We have no 1/4 mile track within 200 miles of here, so I really don't need a track setup.

Parts on hand are:
TSP 228R Cam (springs, pushrods, etc)
TSP 1 7/8 LTs
TSP catted Y (can't stand the smell of no cats)
Hooker catback
SLP lid
Ported TB

The car will then undergo tuning on the same dyno as the above baseline. The tuner is reputable and competent.

and just for completeness, the non-power adders: Circle-D 3200rpm stall, B&M trans cooler, MSD wires, and NGK TR55 plugs.

I'm counting on 370 RWHP, but would be tickled to see 400.

What do you guys think?
Old 09-21-2017, 07:17 AM
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Well since you made 314 on that dyno bone stock, I think you'll be closer to 380-400 on that same dyno after all the mods.
Old 09-21-2017, 12:53 PM
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Originally Posted by Dan Quixote
Hi all.

I appreciate the guesses.

Part of the reason I bought my 2002 WS6 A4 last year was because my butt-dyno told me it was the strongest stock LS1 I'd ever personally driven. My suspicions were borne out when it pulled 314.9RWHP and 337RWTQ on the local dyno, bone stock right down to the air filter. As a comparison, my stock A4 2000 Firehawk pull 288RWHP on this exact same dyno. Note this was STD and not SAE, so knock off 4% or so from those numbers.

Anyway, I now have some goodies sitting in my garage, ready to install. It'll be October before I get this done, but I wanted to know what you guys thought. Keep in mind this is strictly a DD car - I drive it to work every single day until the snow comes - then it sits in the garage. We have no 1/4 mile track within 200 miles of here, so I really don't need a track setup.

Parts on hand are:
TSP 228R Cam (springs, pushrods, etc)
TSP 1 7/8 LTs
TSP catted Y (can't stand the smell of no cats)
Hooker catback
SLP lid
Ported TB

The car will then undergo tuning on the same dyno as the above baseline. The tuner is reputable and competent.

and just for completeness, the non-power adders: Circle-D 3200rpm stall, B&M trans cooler, MSD wires, and NGK TR55 plugs.

I'm counting on 370 RWHP, but would be tickled to see 400.

What do you guys think?
I pulled 426/390 with same mods but also ported fast 92/92 and 11.1 compression with cnced 243 heads and that was with a M6. I doubt you will see 400rwhp. 380 rwhp is more realistic but you never know.
Old 09-21-2017, 06:25 PM
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Originally Posted by Formula934
I pulled 426/390 with same mods but also ported fast 92/92 and 11.1 compression with cnced 243 heads and that was with a M6. I doubt you will see 400rwhp. 380 rwhp is more realistic but you never know.
i agree. i had same cam but m6 and 1 3/4 headers but same catback and it put down 383 so prolly 375-380 sounds about right.
Old 09-28-2017, 10:34 PM
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Well, it hits the dyno a week from tomorrow, so I'll post back with numbers!
Old 10-12-2017, 11:48 PM
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Went on the dyno tonight. We ended up at 387.4rwhp at about 6000rpm and 386.7rwtq at 4550rpm. Whether or not the raw numbers are meaningful, it showed a healthy jump over my baseline pulls on the same dyno, and I think that jump in of itself is meaningful. I'm totally happy with where it ended up.
Attached Thumbnails 02 WS6 228R and bolt ons-dyno-results-cammed-ws6.jpg  

Last edited by Dan Quixote; 10-13-2017 at 12:28 AM.
Old 10-13-2017, 05:14 AM
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So about a 70 hp gain. Sounds about right. Nice work
Old 10-13-2017, 05:45 AM
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nice #'s. congrats.



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