6 replies to this topic

[thebluepotato]

Is anyone running a MED 1.5 rocker and the Swiftune SW5-07 cam together?  Wanted to get advise on how those work together for daily driving. 

 

I currently have the standard 1275 1.25 rockers and interested in upgrading to the 1.5 rocker set.

 

 

 

 

[nicklouse]

All depends on the head and if you are happy with the extra valvetrain wear.

[Wazzah]

Swiftune recommend running the SW5 with the 1.5 rockers.

[Zami]

Installed the sw5 cam a year ago during a refresh. The engine is a 1380 with everything lightened, big valve longman head, twin HS4s, 1.5to1 MS rockers. around 10 to 1 compression. I switched from a vp3 cam. I find The sw5 much smoother, better response especially in the mid range and only slightly less power at the top end. I think it is much easier on the valve train. The vp3 was high lift to begin with and when I tore it down the cam and lifters were beat to hell of course some of this was probably caused by lack of zinc In The oil. I believe the sw5 is much lower lift ( hard to find info since Swiftune considers their cam geometry proprietary) and they do recommend 1.5 rockers with their cam so I think I’ll be ok.

[croc7]

My 1360 has a Calver ‘GT’ head, 1.4 rockers, HIF44, and an Isky ‘torquer’ cam. Last Dyno (RR) run had a flat torque curve from 2600 to 5600. Fun car to drive.

[thebluepotato]

Thanks guys - that is really helpful. 

 

For reference - My engine is a metro 1275 now at 1293 (nice rebore of .020") and 9.75 : 1 compression on twin HS2's, lightened flywheel, etc.  Only saw about 58HP at the wheels (see dyno below) which to me seems nice, but can be better.  Was nice to see what I started with and what I ended up with by swapping some needles and adjusting the A/F mixture.

 

Now sure if 1.5 rockers will help unlock some mid range and maybe a few more (3-5 maybe) HP?

 

 

 

Attached Files

•  before and after dyno.JPG   51.3K   2 downloads

[Midas Mk1]

I run this combination, I like it.