well damn all I did was answer a guys question as to why most tuners don’t like the m62 . Heat and lack of support. I never brought up cost because the tuner wouldn’t care about what you paid for your stuff plus what tuner wants to work with outdated parts . I would think most tuners would want to get the most out of the cars they have there name tided too . Both in Performance and longevity . Now if a car owner is willing to lose a bit of performance in the name of budget that’s fully understandable. To claim it just as good or to say it’s just about the same isn’t true.
M62 does work
I finally found a German guy that had put a Cobalt/Saturn M62 on a R53, GP1 actually, and got a good tune with it. He posted up up a video and the power gains, 311 ps, are quite good when one considers how cheap they can now be purchased here in the US. Cheap enough that within the last week five more have been shipped over the Atlantic to join four that I sent over a couple months ago. In a couple of months there should be more dyno data out there with both stock and BVH heads.
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I have a friend that is a mechanic in France. He asked me if I could find him a decent low priced Cobalt M62 and I found one yesterday for $85 US. I will be sending that over to him in the next couple of days. For the "over the pond" group I know a Devils fan in Manchester that has three Cobalt M62s he is making kits up for and then a guy in Pittsburgh USA that specializes in rebuilding them. He has shipped a few for Opel Speedsters but of late has been shipping either good used or his rebuilt units over the pond. Anybody interested, send me a PM I can get you more information. Currently I am fabricating a kit for a MP62 that a friend asked me to get involved in. These units were used on the Lotus Elise but they are 4th Generation Eatons not 5th like the Cobalts. He bought it from a guy that had it laying around for years. It was never run on a car and is like brand new.
![103243]()
Any thread that wakes up Jan just resorts to this sort of posting from him
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I'm actually pleased to see 'cheap' progress on R53's now, the cars are mostly worth the square root of sod all so seeing M62s being fitted for peanuts for a reasonable power hike is fitting with where most of the cars are in their life cycle. Big money builds still happen which is fine, but Jan can't differentiate between people modding with a budget in mind and pseudo race car builds
I'm actually pleased to see 'cheap' progress on R53's now, the cars are mostly worth the square root of sod all so seeing M62s being fitted for peanuts for a reasonable power hike is fitting with where most of the cars are in their life cycle. Big money builds still happen which is fine, but Jan can't differentiate between people modding with a budget in mind and pseudo race car builds
I don't think Jan cares diddly about forums anymore. The only reason he posted here was because his Fanboi Bixby/Scott told him.Any thread that wakes up Jan just resorts to this sort of posting from him![]()
I'm actually pleased to see 'cheap' progress on R53's now, the cars are mostly worth the square root of sod all so seeing M62s being fitted for peanuts for a reasonable power hike is fitting with where most of the cars are in their life cycle. Big money builds still happen which is fine, but Jan can't differentiate between people modding with a budget in mind and pseudo race car builds
I'm a dumb bastard so none of this means shit,
1.) I figured out how to mount a rebuilt Cobalt SS/Saturn Redline M62, which I bought for $300 US from a guy in Pittsburgh, The M45 pulley gear case bolts to the M62 case without any modifications.
![Motor vehicle Vehicle Automotive air manifold Automotive fuel system Auto part]()
2.) I modified the existing black intake duct so it would fit on the M62.
![Motor vehicle Automotive fuel system Automotive exterior Automotive exhaust Auto part]()
3.) Played around with the belt tensioner and ended up shortening the tensioner spring to provide approximately 10% more tension on the belt. I made up a spacer so that the overall dimension was the same.
![Household hardware Gas Metal Automotive tire Auto part]()
4.) Did logging with two different size pulleys; 65,5 (stock S) and 61. I was pushing 1.24 bars of boost through my ported/intermediate valve head with the 61 and below are some IATs.
![Rectangle Slope Font Line Plot]()
5.) Without an electric water pump, I can make a kit up for less than 300 GBP.
It might not be the prettiest damn thing and drove it over 24000 km with not one problem. But I am just a dumb bastard so what can somebody with brains be able to do?
1.) I figured out how to mount a rebuilt Cobalt SS/Saturn Redline M62, which I bought for $300 US from a guy in Pittsburgh, The M45 pulley gear case bolts to the M62 case without any modifications.
2.) I modified the existing black intake duct so it would fit on the M62.
3.) Played around with the belt tensioner and ended up shortening the tensioner spring to provide approximately 10% more tension on the belt. I made up a spacer so that the overall dimension was the same.
4.) Did logging with two different size pulleys; 65,5 (stock S) and 61. I was pushing 1.24 bars of boost through my ported/intermediate valve head with the 61 and below are some IATs.
5.) Without an electric water pump, I can make a kit up for less than 300 GBP.
It might not be the prettiest damn thing and drove it over 24000 km with not one problem. But I am just a dumb bastard so what can somebody with brains be able to do?
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