SUNILP

Here are a few pics of SLR cams installed on a SL55 AMG. Work done at Motorwerks Michigan.

Drivers CAM with spacer



CAM in place.

TREZ63

Looks goods!
Before and after dyno?

SUNILP

The customer did not want dynos done so we didn't do them.

Anthony 98 GTS

What is the rough cost and expected power gain assuming a minimum starting point of a pulley and tune?

SUNILP

Around 2500 in parts plus install. If I remember correctly, the gains are around 20-25 hp with cams alone.

Anthony 98 GTS

Looks like to top only install?

How often are you in H-town? I'm new to MB's and I am modding up a SL55.

SUNILP

Going to H-town next week. Cams are on top so yes, top only install.

MercedesFTW

Sunman, is that related to Motorwerks of Barrington at all?

Eurocharged Rick

WOW! looks like a fun install...would have loved to have been around to see this one...

wish you could have dyno'd it...have you ever dyno'd the SLR cams after an install to see the actual gains?

jmf003

What a great looking engine! Oh, wait...that's my engine!

The SLR cams were my second mod. A VRP 80mm throttle body was the first. Motorwerks handled both installations and did a bang-up job.

I also need to send kudos to Jakpro1, who went where no modder had gone before and did the first (to my knowledge) SLR cam install: ...and Chromikey, who came up with some helpful instructions and extra hardware bits.

...and VRUS, who ordered the SLR cams for me.

Thanks, guys!

The car is noticeably stronger than stock, although as Sunman mentioned, I did not have it dynoed so I dont' have any numbers to share. The general thinking from other folks who have done the SLR cam mod is +20 HP, +20 TQ, as Sunman also mentioned.

SUNILP

NO, it's motorwerks of commerce twp, MI

SUNILP

Erick, we have not dynoed a car that has gotten SLR cams as of yet. Perhaps John can dyno it someday so we can see actual gains. John, great looking car!

theboogers

was there a alteration of the cam gear sensor needed? there was talk by jakpro that the install required a change to the sensor to allow the different cam gear. thanks

SUNILP

booger,

there was no change made to the cam gears, hence, no new sensor required.

theboogers

sorry for my confusion but, did you use the slr cam gears or the stock cam gears with the slr cams. jakpro said he had to change to the slr cam gears hence the problem with the cam sensor being hit by the new gear. so all i need is to change the cams and the other parts stay from existing stock in the car?
or wait, i see the spacer on the slr cam? this compensates for the sensor clearance?

jmf003

By using the SLR cam gears, a small (0.050") spacer on one cam, and a slight (0.050") grind on the other cam, the cam sensor is in the correct position.

I'd be glad to send you Chromikey's instructions if you're interested in reading a few more details.

jmf003

Thanks, Sunil. I'm lovin' the car!

I'll PM you about the dyno. I have a meeting in Commerce Twp later in the month. If I could schedule the dyno around the meeting, I'd be willing to pop in.

theboogers

jmf003- you have pm asking for details. thanks

jm55

What the impact on drivability? I have done bigger cams before and the cars had no torque until RPM got above 3000.

SUNILP

Jerry,

I remember you telling me about your experience with cams from the past. This cam upgrade does not effect driveability at all. It still feels like a sl55 and there is no rough idle. Idle is still very smooth.

theboogers

got answers on spacer and just want to clarify one more thing. are both the camshafts and cam gears identical for both cylinder banks or is there a left and right to a set? is there one one cam part number and one gear number? i realize you have to alter one gear on passenger side and use spacer on drivers side, correct?
thanks

SUNILP

the cam shafts are different on each side. Your have to actually machine the surface of the passanger side cam where the cam gear meets the camshaft. You don't have to machine the gear itself. The drivers side simply needs a spacer.

jm55

Thanks for the response. Hijacking thread for a minute. When will you be in Houston to do my LSD?

SUNILP

haha, waiting on some headers to come in. Should be in next friday. I'll be there for 1 week.

jm55

Can't wait!!!!