What should I do while I take the head off?

[UFoh]

Unless it's a dedicated racecar running race gas, I would recommend a more street friendly 12:1 ratio. A 1pt increase in compression is worth around 2-3% more power, and the trade-off for only around another 7-10HP hardly seems worth having to run race gas all of the time.😉

if i did it I’d run full time e85… but I’ve really been thinking about the inconvenience of that and I don’t want to blow my motor because I accidentally put the wrong gas in it or strand myself on a roadtrip or something. Do you think 12:5:1 is too much for 93 pump gas?

I honestly don’t necessarily care about a power increase per say, but it’d be cool if it screamed to redline… does that mean it’d only rev 2-3% faster also? Sounds like I’m wasting my time

[pynacl]

I’m going to reuse my followers 😈

Have you considered the E90 320is followers and the 288/280 Schrick cams? I've seen a few posts of people running this setup on the S54, and they're nearly half the cost of the S54 followers.

[stash1]

if i did it I’d run full time e85… but I’ve really been thinking about the inconvenience of that and I don’t want to blow my motor because I accidentally put the wrong gas in it or strand myself on a roadtrip or something. Do you think 12:5:1 is too much for 93 pump gas?

I honestly don’t necessarily care about a power increase per say, but it’d be cool if it screamed to redline… does that mean it’d only rev 2-3% faster also? Sounds like I’m wasting my time

Ya, even 12.5:1 is very borderline, and would require at least an additive or mix...and careful heat management. Of course efficiency/power matters, but the rate at which an engine revs is more dependent on the rotating assembly weight, and the valvetrain.

[UFoh]

Have you considered the E90 320is followers and the 288/280 Schrick cams? I've seen a few posts of people running this setup on the S54, and they're nearly half the cost of the S54 followers.

HTE recommended 280/272 cams. Im super interested in the e90 320i followers though. Can you find me a part number or something?

[zzyzx85]

HTE recommended 280/272 cams. Im super interested in the e90 320i followers though. Can you find me a part number or something?

PN is 11337549034

[UFoh]

11337549034 Actually is this it? That still seems super expensive at ~$1500 - i thought the consensus was that a lot of people were reusing their followers with no issues

[zzyzx85]

11337549034 Actually is this it? That still seems super expensive at ~$1500 - i thought the consensus was that a lot of people were reusing their followers with no issues

I think some people have had success with reusing their stock followers. But given the cost and time to install cams, it is one of those "while you're in there" kinds of things that reduces the risk of failure. Engine mileage needs to be taking into consideration as well.

[digger]

I would carefully consider what you are trying to achieve and not throw random parts at the engine