Ultimate E55 Engine
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2011 E63, 2013 CLS63
Ultimate E55 Engine
Let's say money was no object and you can even include custom work, what mods and work would you do to a 55 engine and gearbox. Let's leave turbocharging and stuff out, let's talk more realistic mods that can be done. What would be your ultimate 55 engine and gearbox. List mods...GO! 
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Joined: Jul 2005
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From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
See SLR parts catalague ... honestly thats the bananas all round...
Outside of that its only limited to your budget.
for example ~15k€ will get you MKB top coolers
8k$ carbon ceramic brakes for weight...
I think you need to give budget parameters...
Outside of that its only limited to your budget.
for example ~15k€ will get you MKB top coolers
8k$ carbon ceramic brakes for weight...
I think you need to give budget parameters...
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Joined: Jun 2010
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From: Puerto Rico
2005 E55 AMG
Let's say money was no object and you can even include custom work, what mods and work would you do to a 55 engine and gearbox. Let's leave turbocharging and stuff out, let's talk more realistic mods that can be done. What would be your ultimate 55 engine and gearbox. List mods...GO!
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2011 E63, 2013 CLS63
Well we are speaking hypothetically and a swap would be too drastic and too much modification. I'm talking about everyone's personal parts wish list.
You're right it would but since no one has done it yet its not really a straight up mod since custom fab needs to be done and testing and things could go wrong. By the way I didn't realize how expensive Ti rods were it's incredible.
Subtle 
but that's too realistic, I was talking about something insane and out of this world like....a heat exchanger 
Why leave turbocharging out? It is absolutely a realistic thing to do and would definitely be #1 on my list if I had the cash. I would just slap SLR pistons and rods and add ported heads on an otherwise stock 55K and then install two GTX3582R turbochargers and watch my oem tranny/prop shaft explode when 900+wtrq shred it. Then just upgrade those units and see my E55 do 8's.
but that's too realistic, I was talking about something insane and out of this world like....a heat exchanger
Last edited by e500slr; Apr 2, 2012 at 10:35 AM.
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2011 E63, 2013 CLS63
so your list of mods is gonna be one of the shortest
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Joined: Jul 2005
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From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
OK Ill give it a go ...
Rear Tank with Johnson CM90, and a chiller package to keep water tank cool.
Front rad - not so sure all the stuff we are sold is taht much better then OEM so I would leave that be to start.
TB .. 82mm Rentech + their airbox and filters.
Pulley ... hmmm 180 ASP ... it works doesnt it?
Exhaust ... supersprint full long tubes... + eisenman back boxes, no cats.
Flowed heads
Forged pistons, and lighter rods while u at it.
Top mount SLR Coolers modified to fit our engine bay - with these will need to increase the front rad capacity though...
Gearbox spec to SL65 clutches, delimit the load limiter, increase shift speeds.
Lightweight wheels and carbon ceramic brakes...
Tune .. goodness knows but something custom...
What have I missed on purpose ?
Rear Tank with Johnson CM90, and a chiller package to keep water tank cool.
Front rad - not so sure all the stuff we are sold is taht much better then OEM so I would leave that be to start.
TB .. 82mm Rentech + their airbox and filters.
Pulley ... hmmm 180 ASP ... it works doesnt it?
Exhaust ... supersprint full long tubes... + eisenman back boxes, no cats.
Flowed heads
Forged pistons, and lighter rods while u at it.
Top mount SLR Coolers modified to fit our engine bay - with these will need to increase the front rad capacity though...
Gearbox spec to SL65 clutches, delimit the load limiter, increase shift speeds.
Lightweight wheels and carbon ceramic brakes...
Tune .. goodness knows but something custom...
What have I missed on purpose ?
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From: Northern Va
Dirt Scooters
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Joined: Feb 2010
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From: Toronto
CLS63 PP
OK Ill give it a go ...
Rear Tank with Johnson CM90, and a chiller package to keep water tank cool.
Front rad - not so sure all the stuff we are sold is taht much better then OEM so I would leave that be to start.
TB .. 82mm Rentech + their airbox and filters.
Pulley ... hmmm 180 ASP ... it works doesnt it?
Exhaust ... supersprint full long tubes... + eisenman back boxes, no cats.
Flowed heads
Forged pistons, and lighter rods while u at it.
Top mount SLR Coolers modified to fit our engine bay - with these will need to increase the front rad capacity though...
Gearbox spec to SL65 clutches, delimit the load limiter, increase shift speeds.
Lightweight wheels and carbon ceramic brakes...
Tune .. goodness knows but something custom...
What have I missed on purpose ?
Rear Tank with Johnson CM90, and a chiller package to keep water tank cool.
Front rad - not so sure all the stuff we are sold is taht much better then OEM so I would leave that be to start.
TB .. 82mm Rentech + their airbox and filters.
Pulley ... hmmm 180 ASP ... it works doesnt it?
Exhaust ... supersprint full long tubes... + eisenman back boxes, no cats.
Flowed heads
Forged pistons, and lighter rods while u at it.
Top mount SLR Coolers modified to fit our engine bay - with these will need to increase the front rad capacity though...
Gearbox spec to SL65 clutches, delimit the load limiter, increase shift speeds.
Lightweight wheels and carbon ceramic brakes...
Tune .. goodness knows but something custom...
What have I missed on purpose ?
Active cooling on SC Loop ( Killer chiller style)
90-100mm TB of some sort
2800 RPM Stall 11" Torque converter + beefed axles and 1 peice Driveshaft.
Also 3.06-3.55 gearing
Thread Starter
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2011 E63, 2013 CLS63
LSX is the best/cheapest platform to make big power. You can take a stock LQ9 (6.0l truck engine),change the cam to a turbo cam and put a single or twins on it,new injectors and make 800 SAFE rwhp and turn it up to over 1000hp for fun. Parts are cheap,everything you can think of is available,anyone can tune them,tons of transmission choices, and blocks are a dime a dozen. Cant get much better than that. I had a LS2 GTO with a 440 LSX and had to be one of the funnest cars ive ever had. Torque everywhere,lots of power up top,spin to 7200rpm all day long and a 200 wet kit for fun. ***GTO T56's do not like powershifting*** 03-04 cobra's seemed to hold up better
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Joined: Jan 2004
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
5.5 bored and stroked as much as possible. All forged.
Cams ground to match.
Custom designed 4 valve per cyl heads
Completely redesigned intercooler system.
Largest Whipple you could fit under the hood along with massive bore TB.
All nice and neatly dyno tuned to race gas.
That would make me a happy camper.
Cams ground to match.
Custom designed 4 valve per cyl heads
Completely redesigned intercooler system.
Largest Whipple you could fit under the hood along with massive bore TB.
All nice and neatly dyno tuned to race gas.
That would make me a happy camper.
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2017 991.2 Turbo PDK 2017 C63S Coupe Ceramic Brakes 2015 CLS63S AMG Full House
5.5 bored and stroked as much as possible. All forged.
Cams ground to match.
Custom designed 4 valve per cyl heads
Completely redesigned intercooler system.
Largest Whipple you could fit under the hood along with massive bore TB.
All nice and neatly dyno tuned to race gas.
That would make me a happy camper.
Cams ground to match.
Custom designed 4 valve per cyl heads
Completely redesigned intercooler system.
Largest Whipple you could fit under the hood along with massive bore TB.
All nice and neatly dyno tuned to race gas.
That would make me a happy camper.
Member
Joined: Sep 2010
Posts: 119
Likes: 1
From: Arizona
2004 E55 AMG
Buy a spare E55 and drop it off to Nelson Racing Engines and tell Tom that money is no object. He would get you over 1000rwhp for sure. Maybe with the supercharger; but with twin turbos for sure. He has built many 2500hp street cars. 
Joined: Jul 2006
Posts: 6,760
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From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
Member
Joined: Sep 2010
Posts: 119
Likes: 1
From: Arizona
2004 E55 AMG
