Aftermarket cam worth it?!?
11-06-2021, 01:44 AM
#1
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Aftermarket cam worth it?!?
I am thinking about picking up a 274 grind webcam from Lindsey, but it is pretty pricy (.02hp per dollar). I am just trying to see if it is worth it to buy an aftermarket cam or if I should invest that money in some other improvements.
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vacuumnoise (11-08-2021)
11-07-2021, 08:52 AM
#4
Thefu
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RSBarn is closing shop, Pete's cams came from Cat Cams: http://www.catcams.com/engines/engin...anufacturer=19
11-07-2021, 10:06 AM
#5
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My opinion- these types of questions have been asked many times/many ways for these naturally aspirated engines. To gain a noticable (by your butt dyno) gain in hp requires a synergistic approach. The breathing must be improved from air filter to tail pipe. Then the fuel map must be changed to go with that. And then you can get into second order terms like reducing friction with dry sump, etc. Michael Mount famously built a NA engine with a dyno proven hp of over 400, which he sold to a customer in the far east. I can only imagine the cost. $30K? $50K? (Find the thread. It is fascinating reading. I think it has 400 in the title)
At the end of the day, the 944 was a design that was adequate in its day at a price point that attracted the entry level Porsche owner. Nowadays, most any SUV can stomp it in terms of 0-60 times. I just say enjoy them for what they are and save your money for track time, tours, etc i.e. just drive it.
At the end of the day, the 944 was a design that was adequate in its day at a price point that attracted the entry level Porsche owner. Nowadays, most any SUV can stomp it in terms of 0-60 times. I just say enjoy them for what they are and save your money for track time, tours, etc i.e. just drive it.
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vacuumnoise (11-08-2021)
11-08-2021, 01:57 AM
#6
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RSBarn is closing shop, Pete's cams came from Cat Cams: http://www.catcams.com/engines/engin...anufacturer=19
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SeaCay (11-08-2021)
11-08-2021, 07:46 AM
#7
Rainman
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all correct, but you can get a major increase in "feel" of power and responsiveness by ditching the stock ECU/AFM for a modern MAP ecu. the real question is, how far do you want to go?
the AFM is the worst part about the 944 engine.
after that advancing the stock cam does wonders but getting a real camshaft upgrade can only help - stock 944 cam is puny.
advancing the stock cam, a MAF conversion (before i went to MAP), and a little bit of tuning was worth about 20 hp at the top and iirc 25 or so more torque in the middle, with gains from 1000-6500rpm. it made a huge difference in the way the car felt and drove. after driving like that for a while, going back to stock and putting the AFM back on (for smog check one time) felt like the car had a parachute on the back bumper.
the AFM is the worst part about the 944 engine.
after that advancing the stock cam does wonders but getting a real camshaft upgrade can only help - stock 944 cam is puny.
advancing the stock cam, a MAF conversion (before i went to MAP), and a little bit of tuning was worth about 20 hp at the top and iirc 25 or so more torque in the middle, with gains from 1000-6500rpm. it made a huge difference in the way the car felt and drove. after driving like that for a while, going back to stock and putting the AFM back on (for smog check one time) felt like the car had a parachute on the back bumper.
My opinion- these types of questions have been asked many times/many ways for these naturally aspirated engines. To gain a noticable (by your butt dyno) gain in hp requires a synergistic approach. The breathing must be improved from air filter to tail pipe. Then the fuel map must be changed to go with that. And then you can get into second order terms like reducing friction with dry sump, etc. Michael Mount famously built a NA engine with a dyno proven hp of over 400, which he sold to a customer in the far east. I can only imagine the cost. $30K? $50K? (Find the thread. It is fascinating reading. I think it has 400 in the title)
At the end of the day, the 944 was a design that was adequate in its day at a price point that attracted the entry level Porsche owner. Nowadays, most any SUV can stomp it in terms of 0-60 times. I just say enjoy them for what they are and save your money for track time, tours, etc i.e. just drive it.
At the end of the day, the 944 was a design that was adequate in its day at a price point that attracted the entry level Porsche owner. Nowadays, most any SUV can stomp it in terms of 0-60 times. I just say enjoy them for what they are and save your money for track time, tours, etc i.e. just drive it.
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