Thericker

Jeremy is truly an artist @ work, very methodical chipping away @ graph until everything is optimized & above ALL SAFE 3 1/2 hrs on dyno EZ 30 runs

After Powerchip ECU we saw, 563 RWHP 688 RWTQ (though TQ would've been 700+ my SL kept jumping off the Dyno & literally burning-out on Dyno in early rpm's you can see it @ 2600 rpm's it dips after 688 due to wheel spin & bucking off Dyno

They had to double strap it, frnt/rear wheels plus rubber blocks out front, still didn't cure the problem so the runs were babied thru early rpm's...

Under the curve HUGE GAINS were made look @ 4500 rpm's nearly 100 RWHP gain @ that point & 53 @ Peak HP, there's more left on the Dyno just couldn't keep her down.

I'm going to redyno on DynoJet I used a few months ago, but will add 100+ octane & Ice to reservoir/IC's


PS great finally meeting you guys!! We go out for lunch n' beer's on me when I come back to replace borrowed wheels etc... Only mistake on graph the owner/operator recorded my SL as an 04'? she's 05' baby!

JAYCL600

Huge numbers Sean, WOW!!

TMC M5

Sean:

Your car is a monster!!! Nice job!!!

Tom

Benz-O-Rama

That's nucking futs, man.

Trap speed, please.

Thericker

Yup when I get my drag setup "Sac here I come!" Trap speeds will tell the tale

FormulaZR

I'm sure it'd purely be speculation...but how do you think your exhaust (DPs, Cats, and muffler delete?) affected this? It appears as though you gained top end power at the "cost" of some bottom end...would you agree?

Thericker

In my opinion CAI/DP's/cats/ indeed added top end but you'd never see it w/out rear reservoir tank keeping IAT's in chk, after ECU Torque was only limited due to dyno not being able to hold it down properly in early rpm's

I don't know everything but these Dynodynamics appear to be made for High HP platforms NOT crazeee TQ, the shop we used Autowave was very good @ keeping my car in (1) piece but normally tune High HP TT/single turbo Honda-Acura's

They normally only strap down the rear & put rubber blocks in front of frnt wheels, but after bucking/burning out w/my SL, they double strapped the front wheels down alas it wouldn't hold it either (still burned out/bucked wildly @ 2600 rpm's) could only feather it in Comfort mode thru 2nd gear then up thru redline holding it in 4th, our 1 to 1 gear...

Notice big dip @ 2600 rpm's? happened every time in 30+ runs, the Owner/operator was very skilled & did awesome job @ keeping her under control given circumstances

I'll run again @ DynoJet I used few months back (where I put down 501 rwhp in 95 deg summer heat @ HK motorsports DynoJet) we'll see how the #'s look in DynoJet world

Thericker

Ahh I think I understand your RWTQ Q: the DynoDynamics in Texas set to read DynoJet #'s you guys have used w/LET tuning are being severely mislead on what your cars Pe-Post #' actually are especially RWTQ I see you got about same Pre-tune dyno results as blazeone IE.. 670 RWTQ

Here's a BRAND new 2009 SL65 Black Series on DynoJet Pre-Post RENNtech tune: 2009 Mercedes-Benz SL65 AMG Black Series RENNtech DynoJet Dynamometer Results Graph
Horsepower: 630.78 HP
Torque: 765.95 ft-lbs



Notice STOCK SL65BS RWTQ readings? 696 RWTQ do you think your CL600 when stock is still making 670 RWTQ? that would be something a stock CL600 w/only 26 less rwtq...

FormulaZR

Dude, I was actually trying to have an intelligent conversation with you regarding YOUR mods, not mine. I expected with your mods that you would gain more torque than a typical tune-only car. I don't know why you have to turn everything into a pissing match between Everyone Else Car vs Yours. I hope you throw a rod.

I only used my dyno graph as a tool to see what was gained; you seem to ignore the fact that the numbers, not the gain, don't mean ****; for the sake of argument though...how do you think your Dyno Dynamics 595 would equate to a DynoJet?

Thericker

Jeez classic, the internet has NO intonation I'm not trying to instigate anything, you were curious about my TQ #'s being low & I was trying to set the record straight giving you a bit of info on what these V12's actually do on DynoJets...

Thanks for the good will

Thericker

Even w/problems keeping SL on Dyno the Post-tune TQ gains were 120+ftlb's under the curve
That's just silly guessing @ what she might run NOW on DynoJet? vs DD, I'll run her again on proper DJ

transferred

You are WAY sensitive...hoping he "throws a rod" is Bush league...

-Rob

TMC M5

Wow....with all this fighting it reminds me of family gatherings...good times...good times...

Tom

FormulaZR

Sorry man, he just really got under my skin with that. Comparing deltas I netted a +110 rwtq gain to his projected +120. I thought with the ability to control heat he would've been able to run slighly higher boost and get closer to +140 rwtq. I simply wanted to know if he thought the DPs affected that. I don't see how my stock dyno affects that.

transferred

Fair enough...

lot of miscommunication on the web, hard to tell tone and all that kinda stuff...

Also forgot to say nice numbers to the OP tr, great gains bro!!

-Rob

Thericker

I'm trying to meet up w/Lassiter maybe you can meet up w/us?

I'm not projecting, look @ my Dyno again 2600 rpm's STOCK it's around 550-560 RWTQ... Then Post-ECU 688 RWTQ that's 120+ UNDER CURVE @ 2600 rpm's Baseline #'s are red,, I think you're confusing the HP graph line...

You've taken this ALL wrong peace out

FormulaZR

I see your baseline torque at ~600 @ ~3200 rpm and that's still conservative because it looks like you spun or whatever between 2700-3100 rpm, it appears as though your baseline peak torque would have been closer to 610-620@~2900...what'd I miss?

blazeone

This is a serious question, I'm not trying to yank your chain.

So your car did 510rwhp before the tune? Figuring an 18% driveline lose that is 621 fwhp. Do you think your air intake, DP and cooler mod's produced approx. 130hp? You made 30 pulls?

I'll end with this, nice #'s and about what I would expect from a good ECU program tune.

Thericker

No hard feelings about past IDK, but Jeremy noted my car was breathing incredibly well while tweaking AFR's there's some power left on table if we could get the car to settle down thru early rpm's

After I bought this rig I started lil mods, I wanted to get ALL of them done before final ECU.

Thericker

Our TQ comes in early off idel, 2600 rpm's is where the car is gaining mad TQ, then burns out/bucks on Dyno, after 2600 is where rpm's drop after ECU tune too much for the strap setup to properly hold...

Peak TQ isn't @ 3200 rpm's you're nit picking the graph to show lowest gains under the curve, the TQ line dip & bucking even happened in stock file you can see it bet 2700-3200 stock red lines...

I'm over it enjoy

FormulaZR

Yeah, I get that...my point is on your baseline the highest torque number (~600) is at 3200 rpm. But, you were spinning or whatever between 2700-3200. I made peak torque at 2900 rpm baseline. If you follow that rpm to your car, then on the DD you would've had ~610-620. My point is, your car (baseline) was capable of a higher torque number had the dyno held it. Furthermore, in regard to what you were discussing earlier, 610 on a DD and 670 on a DJ aren't so different.

Thericker

Hmmm So please explain differences bet a Dynodynamics set to read DynoJet #'s & an actual DynoJet?? it's pointless...That's why there's such discrepencys adding unknown precentages to different Dyno platforms = Fubar #'s

Novel idea go to a Dynodynamics that's set to read like Dynodynamics

I understand your trying to point out my baselines would've been higher, but so would my tuned #'s I'm just looking @ what was actually put down NO more guessing

FormulaZR

Partially correct. You got one of my points, but you missed the second one. Even on that dyno on that day, your torque (I'm talking about the baseline here) would have been higher had the dyno held the car. Do you disagree?

blazeone

Pretty sure your DD runs were also set up as "inertia runs" aka DJ. If not what load factor were they running since the whole premise of a load cell dyno is to have adjustable load factors to help with tuning.

You mentioned you did 4th gear pulls, did you have any issues with the trans kicking down a gear? Where did they get the rpm signal from? We used the a fuel injector wire, worked well.

bassn_07

Nice numbers Sean and Autowave is a top notch place with a great dyno operator (Mike). You gained a substantial amount of power both through the power band and peak hp. Amazing results and your hp#'s are identical to mine the last time I ran at Autowave. Your torque numbers killed mine but that was to be expected.

As for the comment "I hope you throw a rod" was definitely unnecessary and I wouldn't wish that on anyone. My bad, it seems as though he apologized for the comment .

From here the best thing for you to do is take your car to the track and post some solid numbers. Your car should perform well at Sacramento if you could hook it up. Give me a call when you're ready and we'll make a play date. Once again great job PC on a tune well done.