Dyno!!

**tmemastr** · 10-03-2009, 06:29 PM

So I went up have ran 3 dyno pulls with my car this am.
Results were favorable, and unexpected for a stock LS1 convertible.
340 HP and 360 TQ at the wheels.
Mind you this is all stock except SLP long tube headers.
Figuring stock was making about 300-310 HP means the headers opened up 30-40 HP...not a bad add on.

**346ci** · 10-03-2009, 06:39 PM

very good numbers, was that on a dynojet?

**tmemastr** · 10-03-2009, 07:01 PM

Yes, the in floor big wheel unit. I had them hook up a A/F meter for me too and I am running WAY too rich for my liking. I will probably ask them to fix that sometime soon.

**robcas47** · 10-03-2009, 08:26 PM

nice numbers, is your car an A4 or M6?

**tmemastr** · 10-04-2009, 07:16 AM

M6 Baby!! I have waited a long time to get a M6 and I love it! Nothing but good things to say about it.

**Mike0202** · 10-04-2009, 10:56 AM

Originally Posted by tmemastr

So I went up have ran 3 dyno pulls with my car this am.
Results were favorable, and unexpected for a stock LS1 convertible.
340 HP and 360 TQ at the wheels.
Mind you this is all stock except SLP long tube headers.
Figuring stock was making about 300-310 HP means the headers opened up 30-40 HP...not a bad add on.

Those numbers are pretty high. Was this on a dyno Jet? My guess is your closer to 320ish.

**tmemastr** · 10-04-2009, 01:09 PM

It was made on the dyno jet. I have the print out in my hand. Maybe later I will try to scan it for the non-believers in the room.
Not calling anyone out, as I would not have thought it would have been that high either.
The dyno was performed by the awesome guys up at MCRacing in KC.
Let me see if I can scan the page later if my scanner is workin.

**basballny2** · 10-04-2009, 01:31 PM

an all stock ls1 with mods......hmmmm......you have an exhaust as well as those headers? have the headers dumped? Cold air intake? lid? air filter? tune? .......

**Mike0202** · 10-04-2009, 08:42 PM

Originally Posted by tmemastr

It was made on the dyno jet. I have the print out in my hand. Maybe later I will try to scan it for the non-believers in the room.
Not calling anyone out, as I would not have thought it would have been that high either.
The dyno was performed by the awesome guys up at MCRacing in KC.
Let me see if I can scan the page later if my scanner is workin.

I believe you. I was hinting at maybe the dyno was reading high. From what I have seen these cars dyno right around 300rwh from the factory. I have seen ls1's with full exhaust and lid hit 340.

**creeper** · 10-04-2009, 09:29 PM

i hit 340 through an a4 with an intake and full exhaust. there are a lot of factors you have to consider. it was on a dyno jet, it's an m6, it's modded, weather, and the one no one has brought up yet: correction factor. mine would've been 10hp lower if it was SAE corrected.

**texas twister** · 10-05-2009, 04:49 AM

he said it has long tubes on it,,its not stock

**tmemastr** · 10-05-2009, 05:50 AM

Yea long tubes and full SLP exhaust but still factory cats installed. I will probably take them off this winter.
Other than that it is a WS6 so it does have the lid and air box already. Sorry I thought I had a summary in my sig, must not have turned it on.
But I still thought it was damn good for a stock WS6 convertible with long tube headers.

**creeper** · 10-05-2009, 06:23 AM

Originally Posted by tmemastr

Yea long tubes and full SLP exhaust but still factory cats installed. I will probably take them off this winter.
Other than that it is a WS6 so it does have the lid and air box already. Sorry I thought I had a summary in my sig, must not have turned it on.
But I still thought it was damn good for a stock WS6 convertible with long tube headers.

you sure they're factory cats? and if they are, you sure you have longtubes? i don't know anyone in their right mind who would bother doing longtubes and then go through all the trouble of getting those to fit just to choke it. they're a much smaller diameter, angled, and wideee. i'd like to see pics.

also, if you have longtubes(or any other mod for that matter) stop calling your car stock hahah.

**tmemastr** · 10-05-2009, 06:53 AM

Ok ok fair enough. No longer stock.
As far as the cats go, it looks like a crappy exhaust guy job.
The Headers are LT and stamped with SLP logo all over them.
Then the muffler (glass pack looking) and quad tips are also stamped SLP.
The Cats are not stamped SLP and they are not welded on, they have the band clamps on them as if they cut them from the original exhaust and just clamped them up (maybe planned on upgrading to high flow cats later) instead of welding them.

**creeper** · 10-05-2009, 06:39 PM

very interesting. stock cats would be very hard to position and line everything up. you'd definitely free up a few hp by going with a larger diameter higher flowing unit. that guy must have been on a budget haha. or he just spent all his money for the slp's and then all of a sudden remembered he needed it inspected.