singlespeed
Well-known member
Right. For a while, theres been rumour of Catcams making, or indede having made a set of cams for the K4M-854 engine, which runs a VVT pulley on the inlet cam.
https://www.twingo133.net/engine-gearbox-exhaust-air-intake-system/cams-t258.html
https://www.twingo133.net/engine-gearbox-exhaust-air-intake-system/k4m-cams-t4919.html
I filled out the 'contact us' form on the CatcamUK website and then gave them a call. Speaking with Mathew, apparently they were previously promissed a head and cams to measure, before they could get something made or even guess wether a K4M-700 cam would fit with some drillings etc for the VVC... The promised head and cams never materialised so the project was canned.
Anyway, as you may know I found a spare head, complete with cams which I'm intending to get modified to improve the ports. So, with a head and cams to measure, they could get a profile machined up... Being as the porting work hadn't started yet, I pulled it out and it's now at the couriers ready to make it's way South.
I'm after a fast road profile, with the emphasis on more mid range torque between 3K-5500 which is where the best gains in drivability will come from. Bragging rights of top end power isn't too important to me and, gaining loads of top end power is fine if your constantly over 6K, which I doubt many people are unless they haven't sussed out theres more than 3 gears.
As this is now highly likely to happen rather than just talking about it, who's still interested?
https://www.twingo133.net/engine-gearbox-exhaust-air-intake-system/cams-t258.html
https://www.twingo133.net/engine-gearbox-exhaust-air-intake-system/k4m-cams-t4919.html
I filled out the 'contact us' form on the CatcamUK website and then gave them a call. Speaking with Mathew, apparently they were previously promissed a head and cams to measure, before they could get something made or even guess wether a K4M-700 cam would fit with some drillings etc for the VVC... The promised head and cams never materialised so the project was canned.
Anyway, as you may know I found a spare head, complete with cams which I'm intending to get modified to improve the ports. So, with a head and cams to measure, they could get a profile machined up... Being as the porting work hadn't started yet, I pulled it out and it's now at the couriers ready to make it's way South.
I'm after a fast road profile, with the emphasis on more mid range torque between 3K-5500 which is where the best gains in drivability will come from. Bragging rights of top end power isn't too important to me and, gaining loads of top end power is fine if your constantly over 6K, which I doubt many people are unless they haven't sussed out theres more than 3 gears.
As this is now highly likely to happen rather than just talking about it, who's still interested?
