Renntech C250!

) Mercedes has to bring the rest of its diesels to America, to us Americans, they bring amazing figures.
Is the 467 a direct measurment, and 1.05 the test correction, and another multiplyer (about 1.05 again) that nets the 10% factor noted above?
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Can I hear an Amen? It's the original 1% / 99% issue; most people just look at hp specs, and fail to realise that they drive in the specified torque range, and rarely venture to the rpms where max hp is spec'd.
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Last edited by kevink2; Nov 21, 2011 at 09:06 PM.
Is the 467 a direct measurment, and 1.05 the test correction, and another multiplyer (about 1.05 again) that nets the 10% factor noted above?
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The 467 is a direct measurment yes and the 10% is the calculated loss from crank to wheel i think
The Best of Mercedes & AMG

plus, the C250 is direct injection, so you can't change the injectors! lol. not like putting in some ID2000's would help out.
I say just max the stock turbo and be done with it.
plus, the C250 is direct injection, so you can't change the injectors! lol. not like putting in some ID2000's would help out.
I say just max the stock turbo and be done with it.
I didnt say go upgrade the turbo, manifold, ect. I was simply saying "its possible". Id say the owner of the car wants more power or it wouldnt be at Renntech. obviously this isn't a "tuner" car but it can be treated like one, if so desired.
also it wouldn't cost that much to get this car upgraded, obviously it would cost an arm and a leg at a place like Renntech, Brabus, Kleemann, ect. but if you had the "resources", it would be around 5k.

I didnt say go upgrade the turbo, manifold, ect. I was simply saying "its possible". Id say the owner of the car wants more power or it wouldnt be at Renntech. obviously this isn't a "tuner" car but it can be treated like one, if so desired.
also it wouldn't cost that much to get this car upgraded, obviously it would cost an arm and a leg at a place like Renntech, Brabus, Kleemann, ect. but if you had the "resources", it would be around 5k.
$5k for turbo, manifold, tuning, etc.? Not even. Especially if you want safety and reliability. Maybe for other cars that are tuner friendly, but certainly not an MB with no off the shelf components or kits. Not for something that will require dynotuning and runs. Resources? I have some of the best resources in the business, who have worked on my GT-R, M5, M3 and even C230. I know how much they charge and $5k is chump change for them, especially to do this type of work. No offense, but tuning a Genesis, a car that has a pretty big tuner market, is nowhere close to tuning a car like this. Hell, tuning my GT-R is way easier than this.
Upgrading the C250 with Renntech parts and a light tune is to make is somewhat more lively and yet still livable as a daily driver, going all out like you said is just ridiculous.
I've have an M271 car and my friends Drexappeal, Flipachu (look them up on the forum) have had the MOST modded C230's and they weren't even pushing big power but I know how much they spent and it was far more than $5k and it wasn't as invasive as putting a new turbo in. They spent considerable money on their cars and it would have been close to buying a C32 and their cars weren't faster than a C320.
Last edited by nlpamg; Nov 23, 2011 at 03:44 PM.
APR 1.8T ECU TUNE
Add intake and exh for even more.
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plus, the C250 is direct injection, so you can't change the injectors! lol. not like putting in some ID2000's would help out.
I say just max the stock turbo and be done with it.
atpturbo, turbo upgrade car list
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Usually big power increases with bigger turbos necessitate added aftermarket parts, such as stronger engine and differential mounts. And the transmission has torque limits too. Basic info suggests this could be a nice fit between the C350 and the C63, but w/o the nice C63 goodies. Anyways, C250 vs C63 (and some C350 info):
$24K ---- Price Difference
63% ----- Better cruising mpg's with C250
13% ----- Less curb wt vs C63 ( & less hp req'd to ~match C63 performance)
201 ------ C250 hp
302 ------ C350 hp
451 ------ C63_ hp
3400 ----- C250 wt
3615 ----- C350 wt
3924 ----- C63_ wt
By performance, I'm assuming 1/4 mile times, perhaps 0-60, where max hp is critical. Could also do a driveability evaluation, using max torque. Starting with the C250 @ 201 eng hp:
3400/3615 x 302 = 284 eng hp to match C350
3400/3942 x 451 = 389 eng hp to match C63
An average target would be (284+389)/2 = 377 eng hp.
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As an example of what could be, a well developed Garrett roller-brg turbo drop-in kit for an Audi 1.8T with 225 stock hp gets you up to 400 hp, around the C63 target.
400 hp ATP kit for 225 hp audi 1.8T
A more driveable option is the 350hp Audi 1.8T kit:
350 hp ATP kit for VW/Audi
This would put the C250 power about midway between C350 and C63.
These kits for vw/audi go for about $2000. I know these are Audi normal FI kits, but they also sell a 440 wheel hp kit for the DI Mazdaspeed6 Turbo, going for $2500 for hardware, figure another $500 for high pressure pump, but literature says one is not needed. Click on dyno for hp and tq curves:
440 HP DI 2.3L Mazdaspeed drop in turbo kit
This is just a paper exercise to show what is possible, assuming the bottom end and trans can take it, if the market is there.
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Last edited by kevink2; Nov 24, 2011 at 12:59 PM.
John
Usually big power increases with bigger turbos necessitate added aftermarket parts, such as stronger engine and differential mounts. And the transmission has torque limits too. Basic info suggests this could be a nice fit between the C350 and the C63, but w/o the nice C63 goodies. Anyways, C250 vs C63 (and some C350 info):
$24K ---- Price Difference
63% ----- Better cruising mpg's with C250
13% ----- Less curb wt vs C63 ( & less hp req'd to ~match C63 performance)
201 ------ C250 hp
302 ------ C350 hp
451 ------ C63_ hp
3400 ----- C250 wt
3615 ----- C350 wt
3924 ----- C63_ wt
By performance, I'm assuming 1/4 mile times, perhaps 0-60, where max hp is critical. Could also do a driveability evaluation, using max torque. Starting with the C250 @ 201 eng hp:
3400/3615 x 302 = 284 eng hp to match C350
3400/3942 x 451 = 389 eng hp to match C63
An average target would be (284+389)/2 = 377 eng hp.
-------------------------------------------------
As an example of what could be, a well developed Garrett roller-brg turbo drop-in kit for an Audi 1.8T with 225 stock hp gets you up to 400 hp, around the C63 target.
400 hp ATP kit for 225 hp audi 1.8T
A more driveable option is the 350hp Audi 1.8T kit:
350 hp ATP kit for VW/Audi
This would put the C250 power about midway between C350 and C63.
These kits for vw/audi go for about $2000. I know these are Audi normal FI kits, but they also sell a 440 wheel hp kit for the DI Mazdaspeed6 Turbo, going for $2500 for hardware, figure another $500 for high pressure pump, but literature says one is not needed. Click on dyno for hp and tq curves:
440 HP DI 2.3L Mazdaspeed drop in turbo kit
This is just a paper exercise to show what is possible, assuming the bottom end and trans can take it, if the market is there.
.
Last edited by Trek1200; Nov 26, 2011 at 01:17 PM.
Thanks for the update

They come stock with projectors...
No need to retrofit them. You may have to re-aim them, but maybe not even that.




