stein2

And beyond the bolt-on mods and remapping, has anyone gone into the motor and rebuilt it with cams, headwork and fine detail work that's even more precise than even AMG can do? I've seen HP ratings on posts here as high as 650 at the crank and that seems quite high with just Kleeman or Renntech mods given the stock factory ratings of 475-490 or so. Know it would be crazy money to do and also introduce a lot of internal issues to tear one down and build a race (or more race than stock) E55 motor but it's tempting.
Thoughts? Thanks in advance.

dvb247

Mine is 610bhp, I'm wondering whether or not to do the Kleemann K4 upgrade that includes cams, I am aware of someone who has put nitrous on and it's claimed that is approx 800bhp, he only uses nitrous for Santa Pod, never heard of anyone reboring cylinders or porting heads on an AMG??

landyacht

blackbenzz

Some E55s have cams and a few have had their heads port and polished

MBH motorsports

We did this one and made 578whp on a Dyno-Dynamics. Unfortunately the owner is not a racer, so it may never be know what this car can do.

http://www.dynocompnow.com/2009/08/o...mg-breaks.html

Zod

Do the renntech airboxs use stock filters?
can stock filters fit or will there be a gap?

stevebez

Well I was at 613HP before the recent cam install...

Whats left apart from what I have done?

1 Ported heads are worth allot I was told by Kleemann so I guess ... 20-30hp?
2 Better headers / primary cat delete 10-15hp?

Thinks thats pretty much it ... so 30-45hp let say on a base of 630hp (with cams) gives 660-675hp...

Which kinda makes sense to be in the DTM / SLR type power range.

I am not even going down the NOS route.

3 Bigger pulley (with maybe water/meth) 20hp? That then take syou to 680-700hp..

Vics 700hp target without NOS seems/ed achievable ... but this needed internal work.

Some guys have very high rwhp - implying very solid flywheel numbers ... guess we will never know true flywheel figs.

SterlingE55

Hooley, On the mod list on these two record breakers cams aren't listed. Did they have any internal work?

hooleyboy

On the silver E55, the internals are stock. It does have a real nice 100oct file in it though.

hooleyboy

Renntech airbox's can use the the stock filters, However I think they come with high flow ones.

mikeevo

459,067 hp , oh you have to daisy chain the engines together

SterlingE55

I think you hit on something here. Max HP? It will always be increasing. What's a relative max where the engine is relatively reliable? Probably close to 600hp at the wheels.

TopGun32

I would say.. top E55 are around 525 to 550 RWHP and a few higher..

I just find it hard to understand.. why LS3 motors with a supercharger can run easily to 550 RWHP with simple mods compared to the amount of mods an E55 will need to reach that mark.

I can only assume its due to our IC's location and size, small TB options and bypass valve and electromagnetic clutch for the superchargers.. the ECU has too much control of power output.

Esh

Didnt wrldsfstst E55 have something like 1600whp?

tgoss

thread gets locked in 3... 2... 1...

Esh

No reason to lock it...

Ali_E55

mine is 520rwhp & 645rw lbs-ft, and there are still cams, LT headers, bigger TB, extra cooling, lol

chiromikey

rwhp claims are tough to go by since dynos vary by so much. with that said, i think it's realistic to believe that there are a few 55k's that have reached the 700+bhp range without n2o.

Marcus Frost

+1... I mean if you look at one of the forum's best documented cars... bassn_07s... he's right around that magical 130mph trap speed and he's done low 500rwhp on (what APPEARS to be) a legit/un-user-corrected Dyno Dynamics. That's right under the 700hp at the crank mark...

People making over 700hp at the crank will be well into the 130mph arena.

-m

MB_Forever

+1 On this site alone, there are many dyno sheets of the same exact car dynoing at two different places and varying greatly - even as much as 100 whp

EDIT: Marcus beat me to it

bassn_07

+1

Along my journey I have used a few dyno's and they all gave me different numbers. Let me give you an example of the last 3 dyno session I have had. The last one was on a Dyno Dynamics (Gintani) which yielded 500+ rwhp and 595 rwtq. The one before was on a mustang dyno and I hit 447 rwhp and 470 rwtq. The third one was on another Dyno Dynamics (Autowave) and I hit my highest number which was 565 rwhp and 590 rwtq. As you could see dyno numbers will always vary due to correction factors, location, and operator.

I really have no idea where I'm at but the numbers that matter to me are at the track. As Marcus said if you are trapping over 130 mph at the track more then likely you're near the 700 mark give the weight of our vehicles.

BenzoBoi

Couldn't of said it better myself.

stevebez

Any calcs of how a 60-130 time translates into HP?