Ctssws6

Hey peeps got a 98 transam ls1 243s, ls6 intake, longtubes,tsp 233/239 600 600 lift 113 lsa
tsp rumbler 3 inch dumped b4 the axle, slp lid, built 60e with a ss3600 yank an a 3.73 gear
had the car dynoed an tuned an of course dynos are diff but the numbers ive seen on here on smaller cam only setups pictured my numbers or beat them just curious if the dyno was stingy what is anybody else makeing with this setup or close to setups??

HCI2000SS

iTrader: (2)

What did it make?

Ctssws6

384 rwhp 370 tourqe
@HCI2000SS

dckmn52

Run it at the dragslip and get a timeslip. Best way to see where it's at.

Some things that might be holding it back is single 3" exhaust, and the LS6 intake, although plenty of guys can make power with those restraints. Other things that might affect the dyno number is the converter, lack of fuel pressure, ect.

Dynos are terrible to compare one to another, unless you can compare similar combos on the same dyno.
A picture of the sheet may also indicate a problem depending on it's shape, what rpm the run ended, ect.

HCI2000SS

iTrader: (2)

Yeah its a tad low but i wouldn't worry about it just yet. See what it actually runs at the track first. That will tell the true tale

Ctssws6

Ok apperciate the info
so you think the ls6 intake isnt enough to feed the 3 inch by chance @ dckmn52
an it has 36lb injectors with a walboro 450 pump at the rail it keeps atleast 64lbs of fuel pressure i agree about a time slip
im actually impressed with the car in the street it plain in out works especially on gas got a nitrous outlet plate conversion with a maximizer 4 and lnc-2000
I guess my concern is useless cause it works just feels like its way more than 384rwhp
thanks @HCI2000SS

Ctssws6

The car murdered some headers exhaust bolton coyotes on gas with it on gas.
some one said the 98 computer an maf was hurting it as well considering doin a stand alone harness with a 2000 up computer any truth to thos tales ?

HCI2000SS

iTrader: (2)

I talk from personal experience about dyno numbers not matching the true power of the car. Trust me it happens. If your trap speed sucks (considering the track conditions, driver, etc) then you'll know something is up. So you're running nitrous as well? Any numbers on that?

Ctssws6

510 whp 479 tourqe on a 150 shot

dckmn52

i read this wrong. I thought you had a dumped single 3" exhaust. Your exhaust should be more than enough to make power.

The ls6 intake doesnt have as nice of a runner design as an aftermarket Fast, MSD, well designed sheetmetal manifold, ect.

HCI2000SS

iTrader: (2)

Before blaming anything, intake, exhaust, etc, again I'd see what it runs first. That's just my opinion

qweedqwag

Mine made 401 whp with the same setup so you are close 228r cam 600 lift 112 lsa, headers, lid, ls7 lifters, and good tune, had a trailblazer 2600 stall, engine had 150k on it ran good, but all dynos seem to be different.

KW Baraka

iTrader: (7)

What's you're compression ratio?

It could be that you have too much cam.

Also.....the 3600 stall and 3.73 could be squashing your numbers a bit, too.

KW

98CayenneT/A

Very true.

Op I'm a good example of what HCI2000SS is talking about.

Fired my car onto a dyno at a dyno event for ***** and giggles. Had the cutout open and it sounded like it was going to make about 750 whp lol. It made 396 whp which I was prepared to be disappointed but was hoping for a bragging sheet. Didn't bother me much tho because the car pulls hard from 5500 - 7000 rpms.

Brought it to the track and it trapped 122 mph bumping the limiter on each shift due to tranny problems.

HCI2000SS

iTrader: (2)

Yep our cars are very similar in this regard and defy the dyno numbers. At a raceweight of of about 3850 lbs I trap 121 (actually 120.9 so why not round up lol) with big heavy wheels and all. And that was spinning some of 2 d gear. I've never been on an honest dyno with my current setup, but my last dyno I was on I made 415, but that dyno is known to be all over the place. With my old tune and LS6 intake I made 409 rwhp on a dynojet dyno. Funny thing is my buddy made 501 rwhp on that same dyno in his ported 03 Cobra which weighs about the same as my ride. Guess what....we are pretty much a dead even race lol. People put to much emphasis on dyno numbers.

Darth_V8r

iTrader: (4)

In a way I'd think you'd want the lower dyno with the better track numbers. That's more butthurt. "How can your 396 hp possibly keep up with my xxx hp? What are you hiding?" Stuff like that.

G Atsma

That way is actually the COOLEST way to go! It beats, "Wow, you pull 500HP and can only run a 13 sec 1/4???

HCI2000SS

iTrader: (2)

Just like a buddy of mine who makes 535 rwhp on his supercharged 01 Cobra and runs 12 at 121. Same exact time as me at 409 rwhp, and on the same dyno to boot lol. I stopped trying to make sense of dyno numbers a long time ago lol

98CayenneT/A

I actually had a run in with a yuppie in mom and dads Mercedes something or other this past summer. He got next to me and with no warming let it loose so by the time I was able to drop it into 2nd he was a car ahead. I immediately stop his pull and am about to absolutely mow past him and he gets out of it..... imagine that. So we stop at a fresh red light and I'm in the slow lane and he decides to get into the left turn lane. We are the only two on the road, I have my tops off and he rolls down his window and asks how much power I'm making. I tell him 395 hp, he starts yelling 500 hp a few times lol. I just give him a thumbs up, and he gets a arrow and turns left.

Now if he wanted to have a dick swinging contest he would have got next to me at the light because it was setup perfect but he knew better.

And also what he does not realize that even if that yuppie machine makes 500 hp like the nifty commercial says, that's at the crank, he weighs about 4000+ lbs and is awd with massive amounts of torque management because yuppies don't like to feel when the car shifts so his 500 hp probably equals 13.0@110 mph

Ctssws6

I guessi was excited to put dwn some numbers so many variable yall are all right i do appreciate all the info an senarios guys im not dissapointed with the car it flat out works the dyno number means nothing at end of the day