Camshaft questions
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MBWorld Fanatic!
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From: Maryland
SL55 AMG
Camshaft questions
PTE/VRP cams for the 55 N/A motors don't seem to have a lopey idle...has this been the experience for you guys for the most part?
On my 55k I have found although they make incredible power, they seem to have a lopey idle and seem a bit too aggresive for my taste...to each his own I guess...
but my car made tons of power and tq - 509.2 hp and 589.6 ft-lb of tq at the rear wheels
curious to see what some of you guys think...
On my 55k I have found although they make incredible power, they seem to have a lopey idle and seem a bit too aggresive for my taste...to each his own I guess...
but my car made tons of power and tq - 509.2 hp and 589.6 ft-lb of tq at the rear wheels
curious to see what some of you guys think...
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From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
VRP/ PTE cams
I would be glad to confirm the specs & Condition of any used VRP/PTE cam you guys buy . I will do it at no Charge. for the inspection , Cleaning & Polish. other than that , there would be a ,return shipping cost.
Cheers _PTEngineering
Cheers _PTEngineering
Thread Starter
MBWorld Fanatic!
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From: Maryland
SL55 AMG
MBWorld Fanatic!
Joined: Jul 2005
Posts: 1,224
Likes: 6
From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
VRP cams
I've attached 2 Youtube video's You can see the rpm never lays down & Pulls to 6800 rpm , No loss of bottom end Torque. The other is the cold start up. & Idle quality on a Mass air flow sensor type system. The motor holds 17" of Mercury at a idle in gear. Takes about 300 miles of adaptation for the idle to smooth up a little. This car Has a Modern horsepower ECU & TCU tune , It works very well and Andy did not disappoint me.
http://www.youtube.com/watch?v=shgw1AANOF0
http://www.youtube.com/watch?v=24XIqtajQbM
Hope this helps your decision
Cheers _PTEngineering
http://www.youtube.com/watch?v=shgw1AANOF0
http://www.youtube.com/watch?v=24XIqtajQbM
Hope this helps your decision
Cheers _PTEngineering
Last edited by PTE; Mar 6, 2011 at 06:52 PM.
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Joined: Dec 2005
Posts: 2,347
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Need different valve springs?
Don't the NA 55 motors need different valve springs? If so, what's the part numbers if I do decide to buy a set of these?
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Nice sound and smooth acceleration 
It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
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Joined: Jul 2005
Posts: 1,224
Likes: 6
From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
Cams Questions
Need different valve springs?
Don't the NA 55 motors need different valve springs? If so, what's the part numbers if I do decide to buy a set of these?
I used the stock valve springs ,There good to 6800 rpm, But I installed Titanium Retainers , because I new I might see 7000 rpm and did not want to chance Valve float if I missque on a down shift.
Nice sound and smooth acceleration It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
The Mustang & Chevy crowd seem to know the difference. Quiet or loud.
I've had these cams in the engine for over 6000 miles of Driving , mostly short trips & Street & Drag Strip use. The car miles are just at 19,300.
The hardest part was finding all the Vacuum leaks. I ended up using a Clamp on hose connections. This helps with getting a smoother Idle & good drivability. It Makes like a lot easier for the tuner to tweek in the Fuel / Air , ratios
Cheers _PTEngineering
Don't the NA 55 motors need different valve springs? If so, what's the part numbers if I do decide to buy a set of these?
I used the stock valve springs ,There good to 6800 rpm, But I installed Titanium Retainers , because I new I might see 7000 rpm and did not want to chance Valve float if I missque on a down shift.
Nice sound and smooth acceleration It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
The Mustang & Chevy crowd seem to know the difference. Quiet or loud.
I've had these cams in the engine for over 6000 miles of Driving , mostly short trips & Street & Drag Strip use. The car miles are just at 19,300.
The hardest part was finding all the Vacuum leaks. I ended up using a Clamp on hose connections. This helps with getting a smoother Idle & good drivability. It Makes like a lot easier for the tuner to tweek in the Fuel / Air , ratios
Cheers _PTEngineering
Thread Starter
MBWorld Fanatic!
Joined: May 2008
Posts: 1,615
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From: Maryland
SL55 AMG
bump. I have replied to emials...
Thus far I have given one counter offer to the initial guy who responded and whom I told would have first dibs. I am still waiting on his reply.
thanks all, please note that whomever the buyer turns out to be you have Pat's (PTE) help and support should you need it.
Thus far I have given one counter offer to the initial guy who responded and whom I told would have first dibs. I am still waiting on his reply.
thanks all, please note that whomever the buyer turns out to be you have Pat's (PTE) help and support should you need it.
MBWorld Fanatic!
Joined: Dec 2005
Posts: 2,347
Likes: 1
From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Do you know the brand and PN#s on the titanium retainers? I thought I read that Havoc had a problem with these cams causing the valve to come down too deep and it hit the piston face due to having stock valve springs. I can't find the post right now. Correct me if I'm wrong.
Need different valve springs?
Don't the NA 55 motors need different valve springs? If so, what's the part numbers if I do decide to buy a set of these?
I used the stock valve springs ,There good to 6800 rpm, But I installed Titanium Retainers , because I new I might see 7000 rpm and did not want to chance Valve float if I missque on a down shift.
Nice sound and smooth acceleration It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
The Mustang & Chevy crowd seem to know the difference. Quiet or loud.
I've had these cams in the engine for over 6000 miles of Driving , mostly short trips & Street & Drag Strip use. The car miles are just at 19,300.
The hardest part was finding all the Vacuum leaks. I ended up using a Clamp on hose connections. This helps with getting a smoother Idle & good drivability. It Makes like a lot easier for the tuner to tweek in the Fuel / Air , ratios
Cheers _PTEngineering
Don't the NA 55 motors need different valve springs? If so, what's the part numbers if I do decide to buy a set of these?
I used the stock valve springs ,There good to 6800 rpm, But I installed Titanium Retainers , because I new I might see 7000 rpm and did not want to chance Valve float if I missque on a down shift.
Nice sound and smooth acceleration It does sound a touch lopey at the beginning but smooths out nice. I imagine with a quieter exhaust you probably would not notice too much either.
The Mustang & Chevy crowd seem to know the difference. Quiet or loud.
I've had these cams in the engine for over 6000 miles of Driving , mostly short trips & Street & Drag Strip use. The car miles are just at 19,300.
The hardest part was finding all the Vacuum leaks. I ended up using a Clamp on hose connections. This helps with getting a smoother Idle & good drivability. It Makes like a lot easier for the tuner to tweek in the Fuel / Air , ratios
Cheers _PTEngineering
Thread Starter
MBWorld Fanatic!
Joined: May 2008
Posts: 1,615
Likes: 0
From: Maryland
SL55 AMG
Do you know the brand and PN#s on the titanium retainers? I thought I read that Havoc had a problem with these cams causing the valve to come down too deep and it hit the piston face due to having stock valve springs. I can't find the post right now. Correct me if I'm wrong.
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Joined: Jul 2005
Posts: 1,224
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From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
Cam Questions.
There is no need for Titanium Retainers. Stock springs are ok below 6700 , the stock shift points are at 6400 rpm unless your tuner moved it to 6600. These cams work quite well with The AMG stock Valve springs.
In Havoc's issue was one of the custom pistons , that where in his engine , did not have enough relief fly cut in the dish area , too have the proper clearence for the 1mm over sized intake & Exhaust valves , built for VRP by Ferrera . Plus I believe Havoc's engine had the deck surfaced on the block & Heads. I have over 29 sets of these cams out there . and no known fitment issue on stock m-113 engines. Sunir's cams were just too much for his driving taste . That's is why I posted my Youtube stuff. This cams are a good deal for somebody who wants more top end HP. With a willingness to give up a little of that velvet smooth idle quality.
Hope this helps . this debate could go on for a long time and still not be the right stuff for some peoples taste, Hence the youtude vidoes
Cheers _PTengineering
In Havoc's issue was one of the custom pistons , that where in his engine , did not have enough relief fly cut in the dish area , too have the proper clearence for the 1mm over sized intake & Exhaust valves , built for VRP by Ferrera . Plus I believe Havoc's engine had the deck surfaced on the block & Heads. I have over 29 sets of these cams out there . and no known fitment issue on stock m-113 engines. Sunir's cams were just too much for his driving taste . That's is why I posted my Youtube stuff. This cams are a good deal for somebody who wants more top end HP. With a willingness to give up a little of that velvet smooth idle quality.
Hope this helps . this debate could go on for a long time and still not be the right stuff for some peoples taste, Hence the youtude vidoes
Cheers _PTengineering
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Joined: Dec 2005
Posts: 2,347
Likes: 1
From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Thanks Pat for your thorough explanation. I am almost going to pull the trigger. My tuner told me the gains he has seen about 8rwhp although still hard to isolate based on the cars he tuned with with these cams.
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
There is no need for Titanium Retainers. Stock springs are ok below 6700 , the stock shift points are at 6400 rpm unless your tuner moved it to 6600. These cams work quite well with The AMG stock Valve springs.
In Havoc's issue was one of the custom pistons , that where in his engine , did not have enough relief fly cut in the dish area , too have the proper clearence for the 1mm over sized intake & Exhaust valves , built for VRP by Ferrera . Plus I believe Havoc's engine had the deck surfaced on the block & Heads. I have over 29 sets of these cams out there . and no known fitment issue on stock m-113 engines. Sunir's cams were just too much for his driving taste . That's is why I posted my Youtube stuff. This cams are a good deal for somebody who wants more top end HP. With a willingness to give up a little of that velvet smooth idle quality.
Hope this helps . this debate could go on for a long time and still not be the right stuff for some peoples taste, Hence the youtude vidoes
Cheers _PTengineering
In Havoc's issue was one of the custom pistons , that where in his engine , did not have enough relief fly cut in the dish area , too have the proper clearence for the 1mm over sized intake & Exhaust valves , built for VRP by Ferrera . Plus I believe Havoc's engine had the deck surfaced on the block & Heads. I have over 29 sets of these cams out there . and no known fitment issue on stock m-113 engines. Sunir's cams were just too much for his driving taste . That's is why I posted my Youtube stuff. This cams are a good deal for somebody who wants more top end HP. With a willingness to give up a little of that velvet smooth idle quality.
Hope this helps . this debate could go on for a long time and still not be the right stuff for some peoples taste, Hence the youtude vidoes
Cheers _PTengineering
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Joined: Jul 2005
Posts: 1,224
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From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
Your Cars Tuner
Copied from your last post.
Thanks Pat for your thorough explanation. I am almost going to pull the trigger. My tuner told me the gains he has seen about 8rwhp although still hard to isolate based on the cars he tuned with with these cams.
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
I pretty much know where most of the VRP / cams ended up & what cars they are on. My Quess your tuner has not worked on a Car with the VRP / PTE cams.
You should get your Hardware issues fixed first. Get your ongoing 4 year Car trama's out of the way . DC has taken on a Project that has had never ending problems. I'm sure they will help you get straightened out .and running Correctly! Please wait before installing this more aggressive grind Cam, They will compound your current issues.
Best of luck with your future endeavours. _PTEngineering
Thanks Pat for your thorough explanation. I am almost going to pull the trigger. My tuner told me the gains he has seen about 8rwhp although still hard to isolate based on the cars he tuned with with these cams.
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
I pretty much know where most of the VRP / cams ended up & what cars they are on. My Quess your tuner has not worked on a Car with the VRP / PTE cams.
You should get your Hardware issues fixed first. Get your ongoing 4 year Car trama's out of the way . DC has taken on a Project that has had never ending problems. I'm sure they will help you get straightened out .and running Correctly! Please wait before installing this more aggressive grind Cam, They will compound your current issues.
Best of luck with your future endeavours. _PTEngineering
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Joined: Sep 2009
Posts: 515
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From: Heart of America
CLK430
Copied from your last post.
Thanks Pat for your thorough explanation. I am almost going to pull the trigger. My tuner told me the gains he has seen about 8rwhp although still hard to isolate based on the cars he tuned with with these cams.
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
I pretty much know where most of the VRP / cams ended up & what cars they are on. My Quess your tuner has not worked on a Car with the VRP / PTE cams.
You should get your Hardware issues fixed first. Get your ongoing 4 year Car trama's out of the way . DC has taken on a Project that has had never ending problems. I'm sure they will help you get straightened out .and running Correctly! Please wait before installing this more aggressive grind Cam, They will compound your current issues.
Best of luck with your future endeavours. _PTEngineering
Thanks Pat for your thorough explanation. I am almost going to pull the trigger. My tuner told me the gains he has seen about 8rwhp although still hard to isolate based on the cars he tuned with with these cams.
How are the AFRs affected? engine longevity? Can the car actually stall or cut out at times? Will it really cause your coffee to spill if uncovered?
I pretty much know where most of the VRP / cams ended up & what cars they are on. My Quess your tuner has not worked on a Car with the VRP / PTE cams.
You should get your Hardware issues fixed first. Get your ongoing 4 year Car trama's out of the way . DC has taken on a Project that has had never ending problems. I'm sure they will help you get straightened out .and running Correctly! Please wait before installing this more aggressive grind Cam, They will compound your current issues.
Best of luck with your future endeavours. _PTEngineering
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From: A Canadian in Dubai, United Arab Emirates
'05 C200K SS, '05 Kleemann CLK500K, '08 Hummer H3 & '92 Z34 5sp (track car in Canada)
@PTE
Do you have any dynograph information on these cams compared to stock on your CLK55? I'm interested in NA gains but also wondering how they would/could work with the Kleemann supercharger?
Do you have any dynograph information on these cams compared to stock on your CLK55? I'm interested in NA gains but also wondering how they would/could work with the Kleemann supercharger?
MBWorld Fanatic!
Joined: Jul 2005
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From: S.E. FLA.
05 ML-500 , 03 CLK5.5 AMG has left the Garage
Valve spring
Hey Ghost Rider:
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
MBWorld Fanatic!
Joined: Jul 2010
Posts: 4,748
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From: A Canadian in Dubai, United Arab Emirates
'05 C200K SS, '05 Kleemann CLK500K, '08 Hummer H3 & '92 Z34 5sp (track car in Canada)
Hey Ghost Rider:
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
Thread Starter
MBWorld Fanatic!
Joined: May 2008
Posts: 1,615
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From: Maryland
SL55 AMG
Still available. Pat has all the information and has offered to support this sale since VRP/PTE cams are limited production and exclusive as far as performance parts go in this market.
please email me as sunirghosal@hotmail.com for purchase inquiries.
have a great weekend everyone!
please email me as sunirghosal@hotmail.com for purchase inquiries.
have a great weekend everyone!
Banned
Joined: Sep 2009
Posts: 515
Likes: 0
From: Heart of America
CLK430
Hey Ghost Rider:
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
If you put new mercedes Dual springs on . You are set to go!!
Kevwood:
I do not have any Dyno Charts for the VRP cams in a N/A motor. But I did sell ,C-55 asleep, a set of SLR cams & he saw & showed the before & after dyno . On The C-32 ? C-55 forums, They got him 11 RWHP. VRP cams Have more lift & open the intake valves sooner than the SLR cams. I can Only guess may 16 - 18 RWHP over stock cams with the VRP cams.
Cheers _PTEngineering
