Right would like a bit of advice my ej22t is at the machine shop being checked over and it's now time for me to start buying some internals do I go 2.5 nitride or billet crank what rods and pistons do people recommend. Or buy a kit like lateral produce. I'm running a lateral 2.1 atm been great for years running 500bhp but want to build a 2.35 running about 600bhp any advice would be much appreciated.

 

who's building the engine?

 

Me and my mate

 

I like to do the work on my car now as sick of being ripped of by so called specialist also sense of achievement and if it ****s up its my fault lol

 

fair dos, was gonna say speak to the builder for advice

 

Got ya mate it's just there so many options now can mix and match parts or but a complete kit. Also we sort of built my 2.1 engine bought it as a complete short motor from lateral run it for about 5000 miles then for some reason I got all paranoid about it only having 11mm head studs so took it all apart so my mate could do a 14mm head stud conversion then we rebuilt it with new bearings and rings done 19000 faultless miles since paranoia does mad things to people lol

 

my cdb 2.5 has mahl pistons and manley rods

 

What sort of power are you running in that mate. I do like the torque the 2.5 gives

 

at the min its gonna be in the low 300's, its in a v5 type R but still on the 5 speed box so keeping power way down rather than shat itself lol. Engine has been speced for 550bhp though

 

Lateral done mine over 7 yrs ago..still running

2.35 gt35r 626bhp 552lbs 20%meth

Alan...

 

Worth noting mahl pistons have a large bore clearance and are noisey till up to temp, great Pistons but if quiet is your thing might wanna go wiseco ect.

 

Cheers guys going to start to buy the parts in the new year

 

my Mahle 4032 are set at .003" and they seem quiet enough

 

IMHO, Mahle's are a very good and quiet piston even when you run them at the top end of the recommended clearance's be it the 4032 or 2618 grade pistons.

Mick

 

I am running wisecos at the moment.
But for me Mahle have been the most quiet piston I have run in a forged engine. Personaly I rate them.

 

mine must be special ones then cos they arn't noisey, nor in my old built 2.5 either.

Not sure what to tell you chap, compared to cosworth builds i've heard these are quiet as a mouse

 

[QUOTE=Tidgy;11778271]mine must be special ones then cos they arn't noisey, nor in my old built 2.5 either.

My forged 2.5 hawk had these and was built by finch Motorsport who are one of the best engine builders around, and it was noisey as ****, piston slap was very noticeable until engine was right upto temp and even then u could still here them sounded like an escort diesel unless u had the temp up to 90c +.

 

[QUOTE=Nismoboy;11778949]even the best are only human mate, sure they were genuine mahl?

also depends which they were, low expansion or high expansion ones

 

[QUOTE=Tidgy;11779011]The receipt for the build says they are genuine Mahle forged Pistons so I'm hoping they were lol. Not sure on if they were 4032 or 2618 grade. All I know is they sounded like Michael flately was under the bonnet

 

[QUOTE=Nismoboy;11779277]
My Omega pistons in a forged 2.5 I ran were just like that. Noisy as hell and then once you got loads of temp into them they expanded and at high revs sounded as sweet as.