POLARIS ESCOS

iTrader: (2)

I have a gt30 currently fitted to my car, breif spec
2.4 brooklyn conversion
rs500 plenum 8 green injectors
unsure of any headwork presume its still standard
500 cooler
uprated fuel pump
gt30 with external waste gate

car is currently running 1.3 bar

would it be safe to run any more boost with out compromising the engines life

got used to the power now and it doesnt really feel any faster than my last power engineering 2.4 with a t34/63 with 385bhp

car would be going to msd to have boost adjusted so everything should get checked just thought i check here first see if it was possible

thanks graham

LHD220Turbo

iTrader: (4)

in a word yes (engine wise), providing the engine is good to begin with. 1.3bar is nothing IMO; but what transmission are you using? if its standard i wouldnt raise it above 350hp

JTECH James

iTrader: (13)

stu, maps these to 44psi if you want

mechanic28

iTrader: (5)

fuck me !!!! 44psi

POLARIS ESCOS

iTrader: (2)

when i got the car it had a standard box and had only recently been set up by karl norris via matin reyland

i have now fitted a bara box so transmision should take the power no poblem just was unsure of engine and didnt want to ruin a good engine

JTECH James

iTrader: (13)

yes, he wanted to do my t4 the same, but i opted for the turbo friendly 37psi option

mechanic28

iTrader: (5)

what does he map then to hold at?37 psi thats still abit of a bang!

LHD220Turbo

iTrader: (4)

i'm not familiar with the 2.4 conversion but a standard engine with a standard head will make 420hp; with porting of the head you could easily see 500hp with your spec - but just be careful with the box

the guy who has already posted above (JTECH) can tell you all about transmission for 500hp

LHD220Turbo

iTrader: (4)

44psi! jesus; that's one hell of a kick, 44psi is about 3 bar!

Charlie Chalk

iTrader: (1)

I would love 44psi!! what GT30 is good for that, 3076? or can a 3071 do it?

JTECH James

iTrader: (13)

bara box should be ok, mines been fine after lots of abuse

scoooby slayer

iTrader: (4)

i thought i was running alot at 36 psi peak 32 held 44 must sound like a jet

JTECH James

iTrader: (13)

i think either gt30 will do it, but as stu, said to me, it depends how long you want your turbo to last,

it was 44psi peak, 37psi hold


i went 37psi peak hold 32


my old t34.48 was at 36psi aswell lol

Charlie Chalk

iTrader: (1)

Awesome! I guess a 3076 would be better for 44psi ?

bigchez

Fucking hell 44 psi is silly!

How long would a turbo last at that?

JTECH James

iTrader: (13)

would make a nice ammount of torque

JTECH James

iTrader: (13)

no idea

mechanic28

iTrader: (5)

fuck me on a T34!bet the turbo did not last long!!!!but that was a awesume road car!!was that live mapped by stu?

JTECH James

iTrader: (13)

off the shelf from msd on 55lbs, 370bhp 420lbft...

turbos were doing 30k

Alg1k

iTrader: (2)

Keep the oil changed regular and make sure you cool it down after a blast
I have my fans on a switch which i allways run after i turn the engine off then about 2min later restart and watch the temp come right down,
I havnt had any problem with my GT35 and i run it at 44 psi all the time

mechanic28

iTrader: (5)

bloody hell!!bet that kicked back hard in the midrange!

Alg1k

iTrader: (2)

ohh and ive had the turbo on over 2 years now

mechanic28

iTrader: (5)

sorry about the thread hijack1

DazC

iTrader: (1)

The 44psi peak is on an internally gated (V band housing, not the 3 stud flange) GT3071R.

JTECH James

iTrader: (13)

how does she go daz

dave cos4x4

iTrader: (5)

thats some pressure on the head gasket,bolts etc...

bet it goes well.

DazC

iTrader: (1)

Not been out in it properly yet but from what my Dad says, it's very lively, goes a lot better and despite being 4x4, needs treating with a bit of respect.

From the brief moment I was in it, it was very smooth and well behaved off boost but came on boost nice and progressively. I've not felt it at full boost for more than a couple of seconds at most.

Apparently something along the lines of full boost by 3.5k and still making 32psi at 8k rpm.

Lo@der

iTrader: (8)

Yeah agreed, dont think a grp A H/G would like it.lol

DazC

iTrader: (1)

Good job it's on 10 long studs and a Mountune WRC gasket instead then!!

Lo@der

iTrader: (8)

Out of interest are they stud and nut or stretch, the long studs?

(that sounds like Im being dumb as its long STUDS but in any case)

DazC

iTrader: (1)

The studs will be stretch studs as the head is a dissimilar metal to the block, therefore 2 different heat expansion rates. And yes they are studs with nuts!

Lo@der

iTrader: (8)

Yes, I have an arp stud and nut kid in my yb, just wasn't culed up on what is used for 6 or 10 longs.

DazC

iTrader: (1)

Mountune WRC long studs are used. There are others out there though. Some shit and some good. Don't know which are good or not though.

I'm not sure if ARP do a long stud kit or not. I only know of the short stud and nut kit.

POLARIS ESCOS

iTrader: (2)

anyway back on topic lol

without taking head off and doing any mods what would the boost be safe to run
it allready has a group a gasket from when the 2.4 was done I have been told that the 2.4 dont like high revs due to the stroke angle but lowdown they are so responsive and with the gt30 it is a very good set up just after a bit more poke overall

bigchez

Its all in the thread - if you are a real man you'll run it at 44 psi!

glancy2081

if your head is std still it maybe that above 1.3 bar you are getting surge

Lo@der

iTrader: (8)

Dont mean to sound rude mate, but why ask this if your going to get it setup at msd anyway?

westus1

iTrader: (6)

what comp is it
i'm assuming its not standard with the stroker conv?

POLARIS ESCOS

iTrader: (2)

i am happy with the way the car is running so it doesnt need a set up
but if it was easy to get more power by turning the boost up and the engine allowed this i would get msd to do it

POLARIS ESCOS

iTrader: (2)

i am unsure of the comp ratio

will be making a couple of calls tommarow to andy fisher (brooklyn) so hopefully have a better idea of engine spec