Is a 55mm crank any different to another ?

Guys now winter has come I want to move on with my Scomadi 172 conversion and now take it to the next level and fit a 55mm crank . Now is a 55mm crank different to any other meaning cost wise ? As pm tuning is £181 pound and if I shop around I bet I could buy one much cheaper ?

 

different qualities i should imagine. im not in the know with cranks but i could hazard a guess that they are made differently by different companies. steveP will pop by and give you a better answer soon i think

 

You'll need to have your kit/cases machined to use one.

It's not a bad mod but you don't gain very much power etc for the price, compared to other upgrades. Best left till you've upgraded literally everything else IMO

 

Really I'm running a 25mm dellorto plus pm 59 custom pipe wot other upgrades are there ? They crank is £127 tops racing and porting and matching work I'm looking £300 plus barrel

 

Top racing crank is perfect, they last longer than the pm/malossi ones..at least from my experience.

Also another tip, if you are getting any port work done, do not, I repeat, DO NOT send to SRT for the work done, you'll regret it almost instantly.

 

Right that's fine who else is about to get the work done I've tried Darrel Taylor but 6 month wait . Any pointers help gradly received please or some one on here wants to do it

 

There's a person on facebook called Tom TC Tuning Cooper who does port/flow work and so on, people are getting 90+ mph with their 172's and his work doesn't look like its done with a hammer and chisel like SRT does. If you are wanting/willing to pay garage prices you could maybe give PSN Tuning a call but I wouldn't expect it to be cheap.

 

Rite parts arrived yesterday gone for 54mm tops racing full circle crank and pm tuning secondary gears . I've been told YOU don't need to get cases matched and barrel ported . You can still install a crank with out this work being done

 

standard crank is a 52mm I'm pretty sure you'll still need to do some mods to the casing, you'll be better of asking someone like Marsh/Stevep about this.