chitownwhiteC55

IM not really up to date on the MBH long tubes, anyone have any dyno numbers N/A?
I tryed to serch but couldn't come up with anything.

hooleyboy

This is how i would shoot for 12.5 being NA If i was doing it again.

I'd buy a RENNtech R.A.T remote tuner. I would have a pump gas file made and a 109 Octane race fuel file made.

I would get a RENNtech airbox, Long tubes, no cats, dual custom exhaust, slicks. Maybe some cams and pulleys. Then I would follow weather info from the past year to see what month and temp offers the best DA. Get out to the track at the time the DA is falling to just about its lowest point. Do a smoky burnout in dyno mode. then launch that bad boy the best you can without wheel spin. It could happen. stars have aligned before.. so Im sure it will happen again. Get that mod fever. Its 100% addicting.

MBH motorsports

http://www.dynocompnow.com/2009/06/s...-tube-amg.html

The price for C55 headers and test tipes is in my sig below. You can get them through me or from contacting Dyno-Comp www.dynocomp.com

RLx02

Lol I don't think I'll be putting cams in anytime soon, especially for the dollar to hp ratio is for those. I think my next and final engine mod, would likely be an AMS pulley since its just lightweight and not underdriven but i really don't like to mess with crank pullies....

and FWIW the money I would spend on supercharging my car would be better spent on a downpayment on a cls55 or c63

*edit* Do we know what c55asleep? ran off the bottle? I don't want to squeeze at all.

chitownwhiteC55

I couldn't find anything about how much rwhp the C55 is supposed to pick up with the long tubes. Any dyno time on an N/A?

MBH motorsports

The C55 will see a 40whp gain with the long tubes.

blackbenzz

NA? Is that guaranteed?

AMGSC

That's a 14% gain for an NA motor! Kleemann only states 7%. So these headers will double the gains of another long-tube???? I need to see some before and after charts.

chitownwhiteC55

Why has no one jumped on this yet? the long tubes will put you in the 12.50 range alone if it gives 40whp

JYOO

Oh snap the answers get better.

Newzchspy

and you have a C55????

Newzchspy

OK, down to the nitty gritty? Mike, whats the absolute best you ran NA on your C55 and what were your mods when you ran that??? I think its hard to get a C55 down to 12.5 without going to some major mods including BUT not limited to the mandatory Quaife. My damned Kleemann S7 SC C55 spins so much without it !! If I recall, you were still in the high 12s with your mods (before the SC). Once again, I think with the C55 that you either need the bottle or an SC to start getting into low-mid 12s.

PTE

Well not exactly , It was a 03 CLK 5.5 AMG N/A engine. I believe if you do a Search , you will find my Time slip posted here several years ago. 12.5s is very abtainable, The biggest hinge point is the exhaust restriction. I chose Kleemann at the time because they had a proven track record & Great Customer service. Cory has been more than helpfull through the years.
Cheers _PTEngineering

RLx02

To give an honest answer; price. MBH makes top notch quality headers, its just that I can't justify that price for just headers when my headers AND tune cost 2000 total.

Are you running sport cats and/or secondaries?

I would say traction. Unless you mean headers, by exhaust restriction. I have the Kleemann "long tubes" (i think they're more mid though than long) and the biggest challenge I face now is getting power down in first. Without LSD or DR's I can only give it maybe 60-70% throttle in first before I can go WOT in 2nd.




Now here's a good question. I'm assuming most tunes, including my kleemann tune is optimized for 93 octane, so would race gas help at all? I can get a drum or so from a local gas station here but I don't know if it would do anything or not.

PTE

I installed the Kleemann 200 cell Random tech cats, I did a whole thread on the exhaust over in the W-208 / W-209 CLK section.with before & after dyno charts. I found on a well perpared track ( Hard to find most days ) I got by without a Posi rear diff. But on the street , with street tires, the Qualfe made a day and night Difference. I do believe the Qualfe, should be a part of the 1st stages of mods. We seem to spent more time on the street & the track. Cheers _PTEngineering

ABALONE

Update please, will i see 40 WHP gain over my Kleemann mid/shorties with the MBH headers? Or 40 Whp on a stock 55 N/A engine? Do you have dyno charts to share?

Magnus

speedybenz

RLx02,

If you can find a VP dealer you want to ask him for a drum of oxygenated race fuel. It is called MR9 and it will set you back maybe $15 -$20 per gallon.

But it will make an honest 6% to 8% more power than pump gas. So on a motor making 350 RWHP you are going to see almost 380RWHP without doing anything else. We would see 8Hp out of my 750cc race bike with no other changes.

Is this BS? Well, we never found it to be BS at all. It worked as claimed. I ran the stuff when I raced AMA Superbike and Supersport and if I didn't have it in my tank I would get smoked down the straights.

The first one to buy and use it will be shocked at the difference. I would double check to make sure it safe for Cat. converters. Well I am sure the stuff is leaded. But if you ran it for an afternoon or your cats were out. I think they make some unleaded fuel that is oxygenated too called U4.4 which is claimed to make up to 6% better power. I haven't used this gas but I would guess it will do pretty close to their claimed pwer increase. We used to run a lot of their gas and provided you got the right fuel it could make a pretty big difference in perfromance, but it has to be one of the Oxygenated Fuels.

Jeff

jturkel

PM Hooley. I know he used to have Evosport Shorties and then dyno'd with his new LTs and gained a ton of power over those shorties.

ABALONE

I've PM'ed Hooley like three times or more before regarding other things i've wondered about, but never got an answer

Are the Evosport shorties or mids?

jturkel

no idea. i've never had them. if he doesnt respond to PMs at Hooleyboy, try PM'ing him at MBH motorsports.

wawy

I have the Evosport ones and they are definitely shortys..

ABALONE

Thanks!

Are they like AMS shorties or Kleemann?

Jons95c36amg

Or up the displacement to 6.2 AMG motor

wawy

They look exactly like this:

Quicktwinturbo

Nice this thread is about Headers!!!
I would love to see someone try MBH headers... n do some comparison tests