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Yeah. I was & always use 18% DTL for the 5 speed slushy.. & agree highly likely they used Black Series setup inc Turbs no matter what they say in their Blog.. Also certain high octane tuning too.. (IDK the dif in inner DIA on Black Series manifolds? I've seen detailed pix of them but no quantifiable specs, Jody has a set of them be VERY interesting to hear his findings on actual Blk Ser Manifold specs vs regular 65 specs... I bet inner DIA is larger.. Bigger turbs be it cartridge or and entire housing upgrades for 65/600 100% need larger inner DIA manifolds to really make use of all new turbo air etc etc..
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
Thought I post an update since it's been awhile. Xmas and New Year's delayed the project for a bit, as well as some other cars taking up some time at my tuner (1000whp GTR, Widebody 997 GT3 shop car, etc)
Head's went to a machine shop for 3 angle valve job, grinding the valve seats, etc and the turbos have been port matched with the heads
Only thing holding it up now is some seals that I forgot to get for the oil lines for the turbos, and some seals for the thermostat since it was leaking. If nothing is backed ordered, then its all good for the engine to go back to the car and have Jerry to tune the car. Once the engine is back in the car, the upgraded top mount intercoolers can finally begin the mock up.
My project is going down a similar kind of route but without the head work.
What power level can the stock 65 transmission hold without needing to be upgraded?
Between 700-750 whp & it will start slipping, then @ anything higher than 750-800 whp you will def see it go.. But you will never see anything above 700 TRUE whp on a 600/65 motor w/OUT upgrading the ENTIRE turbo IE GT30-35's & Exhst Manifolds, (Not the little Compressor wheel upgrades on stock turbos) or even adding Head upgrades (port/polish) etc as this thread is doing.
ALL these modifications & few more tiny tweaks than seen here have already been completed/tested years ago, they yielded no more than 700-715 TRUE RWHP & have been tested ad nauseam to see where more power may lie besides just going w/GT30-35 complete turbos w/REAL shorty style headers w/larger inner diameter piping in place of oem exhaust manifolds.
Even when adding a complete larger turbo (GT30-35) w/ALL supporting mods, if you leave the stock exhaust manifolds in place, the engine can't properly flow/remove all the new additional compressed air, it literally belches it back into the motor w/deadly backfires.. The tiny stock exhaust manifolds inner diameter is a major bottleneck on producing more hp/tq on the m275 v12 turbo engines..
So what I'm adding to this conversation is the OP or anybody trying to add more rwhp than 700-715 they need to address the stock exhaust manifolds 1st, if memory serves Marcin told me just adding the larger exhaust manifolds netted 50+ whp alone.. But as most here already know, that in itself is a major hurdle as BOTH the stock turbo & manifolds are cast together as 1 krappy part arghh thnx Mercedes!
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
Engine is running now!!!!! Just fabbing up new downpipes to fit the new outlets on the turbos. Next week its looks like its ready to go on the dyno, and just in time too last snow storm for DC was on Thursday, starting Wednesday looks like high 50s / low 60 degree weather. So I'm hoping were done with snow and drive the SL for 3 weeks before my body shop has an opening to put the black series kit on.
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
So new downpipes were fabbed early this week, (I think Monday) and while swapping out the hydraulic fluid for the ABC, the pump decide not to let any fluid come in, turns out ABC pump went bust. So it won't be moving until mid next week. But I got an exhaust clip while it was park so here's what it sounds like now with the mods, along with my exhaust and the cutouts open (I think only is only open and not both since fumes come out the left cutout but not the right so I need to double check, if that is the case then it's gonna be louder than the current clip) I'll update more next week
So new downpipes were fabbed early this week, (I think Monday) and while swapping out the hydraulic fluid for the ABC, the pump decide not to let any fluid come in, turns out ABC pump went bust. So it won't be moving until mid next week. But I got an exhaust clip while it was park so here's what it sounds like now with the mods, along with my exhaust and the cutouts open (I think only is only open and not both since fumes come out the left cutout but not the right so I need to double check, if that is the case then it's gonna be louder than the current clip) I'll update more next week
3" dwn pipes no cats 3" pipes all way to tipps no mufflers, sounds exactly like mine did very loud & you'll hear a ton of droan that gets old real fast.. I toned it back dwn a bit w/300 cell cats it's a perf compromise inmop..
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
That's why I had cutouts as part of my custom exhaust, it quiets down a lot when the dumps are closed and goes through the high flow mufflers. In the vid I supect 1 of the dumps isnt working since fumes come out the left tale pipe but not the right, most likely the wire that plugs into the cutouts aren't in fully
That's why I had cutouts as part of my custom exhaust, it quiets down a lot when the dumps are closed and goes through the high flow mufflers. In the vid I supect 1 of the dumps isnt working since fumes come out the left tale pipe but not the right, most likely the wire that plugs into the cutouts aren't in fully
Luv to see where you rigged up these electric cutouts? As I tried to add them as did plenty of others here. Not one of us or our mechanics could find a spot to mount them as there is little to no extra room to have it done properly
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
Theres a spot after the mid section where you can put the cut outs that way instead of deciding to do a muffler delete or not you can just flip a switch and have the dumps open, and when you get tired of them you can close them up.
Theres a spot after the mid section where you can put the cut outs that way instead of deciding to do a muffler delete or not you can just flip a switch and have the dumps open, and when you get tired of them you can close them up.
Actually this wont work lol.. The cut outs are way too far away from the cats I'm looking to bypass completely you still have the cats in your system all you did was bypass ur mufflers.. In order to run what I & everybody else wants it to add cut outs way up stream behind the cats, there's zero room there.. Adding/removing even hiflo muffs ruin the sounds I like... Key to my system is hiflo or no cats no muffs sounds tot trick.. I'll stick to my hiflo cats it's what I already knew, the best compromise inmop for ultimate v12 biturbo sound...Thank you though!
I know I said your sys sounded just like mine but now that I know what your running & only heard it in park it sounds similar @ those low revs, but @ full song w/any cat w/more than 300 cells ruins the raw notes I'm after..
Edit: So you ditched the cats completely like I originally thought, you just added cut outs dwn stream to add/remove bad droan w/hiflo muffs.. cool but still I gotta have some cats in CA etc.. Hence my misunderstanding what you originally did etc.. Though explains the sounds being what I thot just like mine w/no cats etc.. Nice job!
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
Pretty sure they are 3 inch QTP cutouts. As for what looks like cats are cylinder style high flow muffers. But my exhaust has 4 sections divided up by v bands. If I need to install cats. Its not that hard to do.
I think the cats on his car are at the back by the tips. That's how I have mine set up also.
lol cats only work when installed directly after the turbos, no longer than 12" away.. They place them that close in order to be hot enough to actually work properly.. Only time you see cats by the tips is when they do remote turbo installs by tips... I bet you $1000 USD you have NO cats by your tips, same as V12TTEnthusiasts..
06 SL65AMG, 13 Tesla Model S 60kwh, 02 Jaguar S-Type 3.0, 12 S550 4 Matic, 07 E320 Bluetec, 06 LX470
I'm running catless right now. The way I have my exhaust is 1 section is the downpipes where I can unclamp high flow or no cats. Mid section to do straight/x pipe/h pipe, the section where the cutouts are. And the end section of the mufflers and tips. I figured dishing out extra money for the v bands was worth it to just unclamp stuff then cut and weld parts
But the no cats/cut outs/high flow muffler combo seems to work well. Cutouts make it sound like a muffler delete. And it gets much quieter with no drone with the cutouts closed with no cats and high flow muffers
Last edited by V12TTenthusiast; 03-15-2015 at 02:58 AM.
I must say I have not looked yet. I have catless downpipes so I assume the cats must be just after the downpipes if they hand to be that close or would they be before the downpipes?
Lets face it this exhaust setup is sweet, large catless downpipes off the turbos help out the little turbos a ton. It has dumps if you want to let out a bit more rumble and play around, or use the mufflers to drive around without too much exhaust drone. They look like a perfect fit. Even with the stock turbo manifolds I think the upgraded turbos will benefit from the big down pipes and head work. Time will tell, it looks like you are almost there. F1BHP, if you have catless downpipes, 99% sure you have done away with cats.
Do you guys have an emissions test every year? In England we have something called an MOT every year. I have 200cell sport cats on mine which is sufficient to pass.
Do you guys have an emissions test every year? In England we have something called an MOT every year. I have 200cell sport cats on mine which is sufficient to pass.
Of course we do, we only put the catless pipes on for track events.
Yes I Edited my post @ midnight last night, I figured out what you did.. Again nice job V12Enthusiast, enjoy the RUMBLE! I have people complimenting me daily on the exhaust note with & with OUT cats, as long as you don't go over 300 cell count you're in the sweet spot (Though I used more expensive Metal cats vs ceramics, I found this is integral at keeping these beautiful sounds when ADDING back ANY cats.. I compare the sounds to a combination from Off Shore big cid racing boats, coupled to the best American muscle sounds w/Euro complexity marrying it all together..
Simply beautiful! Everyone that's driven her or got a ride or from other vehicles shouting to me in traffic, says basically the same thing "That is the BEST sounding exhaust/ turbo setup they've ever heard" Lastly it's very hard to capture all the subtle low notes & spine tingling burble/crackle you hear in person..
12-15-2014, 10:59 AM
