Wanted RS2 / 7A inlet cam

[Rusty]

After an ADU or 7A inlet cam. Not willing to spend much money on this as it's an experiment but let me know if you've used the exhaust cam and not the inlet...

[s2_bo]

Yeah i got one..
how much money is "not much money"?

[Rusty]

PM sent Bo.

[Jamo]

The RS2 inlet is the exactly same as the ABY inlet

It's the cam wheel which changes it's timing

[Rusty]

Interesting, thanks for the info, sorry I couldn't afford to play RS2 exhaust cam but a 7A inlet is a lot cheaper as noone wants them. Be interesting to try the 7A inlet with both S2 and RS2 exhaust but that will have to wait for another day!

[Jamo]

Interesting, thanks for the info, sorry I couldn't afford to play RS2 exhaust cam but a 7A inlet is a lot cheaper as noone wants them. Be interesting to try the 7A inlet with both S2 and RS2 exhaust but that will have to wait for another day!

You've seen the results at Weston, my Avant has a 7A inlet and RS2 exhaust cam in it

[Rusty]

Again, interesting... Your motor might not be the best benchmark though mate as you never had a RR on standard cams. To quantify gains I'm game to try a before and after. Just got to get the exhaust done and see if I can break 300 camless.

[Jamo]

Doug did a bench mark of 7A inlet vs ABY inlet with the 7A exhaust being constant.

I'll be interested to see your results on a standard turbo.

You'll find the 7A inlet will increase lag but pull harder higher up the range.

[Rusty]

That's the hope... what lag?

No one's done a test with the S2 cam as a constant so happy to give it a try.

The extra overlap of both 7A cams might not help, hence Doug's findings. As the standard S2 cam is fine for k24 boost levels I'm going to see if I can get more air in the cylinder in the first place.

[Jamo]

http://www.s2forum.com/forum/showthread.php?t=10461

Posts 7 & 8

sorry for the hijack but it's all relevant

[Rusty]

Cheers mate, read it earlier, it is indeed relevant.

Unlike the massive turbo that Doug had the k24 suffers at the top end. Single mass flywheel made quite a difference, as did a decent exhaust. Hoping this will make a difference to the top end too. Mid range is fine as is, losing a bit won't make me cry and will help for track stuff and sprints.

[Rusty]

Been doing some research into cams (this forum really is a wealth of knowledge when you look!).

Really interested in the RS2 exhaust cam being shorter duration.

[Rusty]

Anyone got an NM inlet cam?

[Jamo]

Anyone got an NM inlet cam?

Yep Sorry you can't have it

[S2_Dave]

Can anyone suggest a good read about cams? Come on Jamo, you're bound to have a bookmark you can post.