Gonna start gathering the parts so that i can rebuild my 2.4 to handle boost. I need suggestions on wut i should get.

I'm not looking for a huge whp build.. just in the 400-450whp and SAFE range. im prolly right at 300whp right now but i dont want to have any worries which is why i wanna build it.

im gonna be buying a spare motor to do this with so that i can take my time.

for now what i have planned is


-new precision turbo(not sure which one. i believe its an sc60 or the 6262)
-pistons- stock compression
-rods
-valvesprings
-retainers and seats
-new valves
-head p&p
-valve job
-head studs
-head gasket
-clutchmasters stage 3 clutch and most likely a lightweight flywheel. if not then spec stg 3+ and flywheel
-meth setup
-looking to run this at about 15-20 psi

will i need to go with injectors bigger than my current 60s? i already have full 3" exhaust on the car so that will be it for me.

what am i missing if anything?

 

I went lower CR on pistons to be safe, and Carrillo h-beams. I would not recommended who I got them through though

I'd go with zzp's boost referenced fuel pressure regulator as well for over 12 psi

I stuck with the stock headgasket as well as arp headstuds and clevet rod bearings / stock mains

I'm almost positive our exedy can handle quite a bit of power ill let you know when I get the Garrett 60 trim .63 a/r in

 

im keeping stock comp. i woulda bought an lsj if i wanted it lower lol..

i was considering zzps fuel thing. im prolly getting pistons and rods through ottp.. i did forget about bearings as well thanks for that.

u really think our clutch can handle 400+tq?

 

Only time will tell!

It was not showing signs of slipping at 325wtq

 

i wouldnt stay at 10.9:1 for high boost levels. maybe knock it down to 9:1????
idk much about boost. but i know high compression + high boost = not gonna last toooooo long

 

Yeah I agree, I went 8:8.1 , just gonna run more boost to make up for it, but better safe then sorry

 

It has nothing to do with lasting long, its more of a tune/gas available near you issue. The worst I've seen a properly built high compression high boost, was lift the head at WOT. If you can make a motor effcient less boost is needed to reach a set power level.

 

its not 10.9.1 its 10.4 to 1.

if i wanted to knock it down i would have gotten an lsj. k20s are 11.1 compression and they do just fine with built internals. the reason u go with forged internals in the first place is to be able to push them


i dont wanna have to get into boost just to have some get up and go.. theres a built g5 that has the 8.8 comp pistons and hes only at like 350 whp and 375 wtq after around 15-18 psi i believe. stock comp with forged pistons on those boost levels would have to be 400 easy

exactly. reason i wanted a higher comp motor was to be able to use lower boost do get good numbers.

 

What are u gonna do about the trans

 

nothing really. cavys have been running it with around 4-500 just fine.

i was thinkin about getting it cryo treated tho

 

I'm gonna cryo and micro polish everything then do LSD have u found any stock comp forged pistons yet ?

 

yea ottp said they can get the same brand as the ones they have listed for the lsjs for like 50 bucks more.

 

you can go with wiesco or diamond any cr for $650, FYI

 

its not really pistons im worried about. its the rods. sooo freakin expensive.

yea the diamond forge pistons are 395 for lsjs so if ottp still honors wut they told me itd be 440-450 for le5 with the same.

 

yeah my rods were $1,000, i wouldnt be worried about that compared to what you wanna do with your trans

 

trooth the lsd is stupid expensive

cryo treating shouldn't be super expensive... it's the uninstall and reinstall

 

i believe someone cryo treats around here for 300... id have to check. but, im prolly gonna go with that quaife down the road. i do know a guy thats working on those lsd inserts like they do for cavy's on another forum im on..

im waiting to find out if he can make one for the getrags as well.

 

real LSD > phantom slip

 

Real LSD>Team Green LSD> Phantom Grip. Only problem is most don't want to shell the 1300 out for a quaife. When a Team Green is 200 bucks and has proven itself in 400hp cars.

 

you do realize the team green and phantom grip inserts are the same style of insert right?

 

i believe theyre the same style but team greens are stronger.

i was actually not talking about either of those tho..


another guy i know is making his own

 

Ok I'm lost...how did you get to 300 whp in a 2.4 without boost in the first place?

 

welcome to the site buddy, he already is boosted

 

Ah gotcha. MORE boost, not just any boost! And thanks.

 

hmm making his own?

thing is being the same style they both put alot of extra stress on the spider gears now that doesn't necessarily = failure but it can cause failure depending on driving style