Outer Limits 4x4 Board

has anyone intercooled a gq rd28 as there seems to be no space it comes straight out of the trbo into the inlet mainfold ... im running 12psi out of the standard turbo and plenty of fuel and it doing 120 hp at the wheels (33'') is anyone getting better and if so wat are u running id like the boost to come in a little sooner than 1800 rpm but it goes well ...
wat turbo up grades have peoples done ?????????

Mate ive been down the path you are heading and done

BBTurbo
Front mount intercooler
Huge amount of extra fuel
Egr blocked off
3" exhaust from turbo

Yes it went very well and had boost from 1000rpm BUT

Unfortantely not for long so I suggest you return it to standard.

patrol28 wrote:has anyone intercooled a gq rd28 as there seems to be no space it comes straight out of the trbo into the inlet mainfold ... im running 12psi out of the standard turbo and plenty of fuel and it doing 120 hp at the wheels (33'') is anyone getting better and if so wat are u running id like the boost to come in a little sooner than 1800 rpm but it goes well ...
wat turbo up grades have peoples done ?????????

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Do this and you will be more than satisfied:

Following engine mods:
big GT2871R.86AR bb turbo
12mm plunger from a german made MAN truck. pump is set up to deliver 100cc of fuel.
injectors set to 155ats
3" dump/exhaust
custom plenum chamber( velocity stacks inside)
3" IC pipes
Big FMIC
Powershot LPG injection
Snow Performance Water/meth injection
Big kn airfilter
Exedy xtreme clutch

Puts out around 250hp/500nm. My latest modification to it was water injection and I`m very happy with the power increase.

thanks guys
i dont no that i want to go crazy with it as i understand its not the toughest block around but would like more usable power ..

STOOL did you use the GT2871R turbo if so how did you go plumbing the intercooler do you just spin the alloy side of the turbo around 180' so you could plumb and elbow on it .. i understand wat you say about keeping it stock that kinda why i want the boost to comin sooner so i dont need to try to pull so much power from it as with the intercooler ..
have you got any of the gear still laying around ..
thanks guys

vn15 wrote:

patrol28 wrote:has anyone intercooled a gq rd28 as there seems to be no space it comes straight out of the trbo into the inlet mainfold ... im running 12psi out of the standard turbo and plenty of fuel and it doing 120 hp at the wheels (33'') is anyone getting better and if so wat are u running id like the boost to come in a little sooner than 1800 rpm but it goes well ...
wat turbo up grades have peoples done ?????????

--------------------------------------------------------------------------------
Do this and you will be more than satisfied:

Following engine mods:
big GT2871R.86AR bb turbo
12mm plunger from a german made MAN truck. pump is set up to deliver 100cc of fuel.
injectors set to 155ats
3" dump/exhaust
custom plenum chamber( velocity stacks inside)
3" IC pipes
Big FMIC
Powershot LPG injection
Snow Performance Water/meth injection
Big kn airfilter
Exedy xtreme clutch

Puts out around 250hp/500nm. My latest modification to it was water injection and I`m very happy with the power increase.

nice do you use it for 4wding or drag racing

I used a GT25r with .48 exhaust and .48 compressor

which was custom built` and I just rotated the comp side a little to suit

Wat sort of ecomony ur u fellas gettin out of these rd28's???????

MAD DOG 79 wrote:Wat sort of ecomony ur u fellas gettin out of these rd28's???????

between 14l\100 and 20l\100 but its normally around 17l\100..


14l\100 is when the misses drives i dont no how she does it i try driving like an old woman but i just cant match her ...

I thought the small diesel would get better than that!! Thats not much better than my petrol!!!!

Jimbo wrote:I thought the small diesel would get better than that!! Thats not much better than my petrol!!!!

wats that everyone i no that has a petrol is getting 25l\100

Yes i get 25l/100 on lpg giving it a lot. But 20l/100 on lpg is not hard and under 20 on petrol! I thought the 2.8 were better on fuel than the 4.2 diesels.

i get around 17/100 but i dun have 120hp
stupid 4.2

if you rotate the inlet side of the turbo to suit be careful not to slit the very thin seal the is around the outer egde, it will cause a leak and loss of boost..

shw337 wrote:i get around 17/100 but i dun have 120hp
stupid 4.2

if you rotate the inlet side of the turbo to suit be careful not to slit the very thin seal the is around the outer egde, it will cause a leak and loss of boost..

fow shizzle

MAD DOG 79 wrote:Wat sort of ecomony ur u fellas gettin out of these rd28's???????

I am now getting an average of around 11.3lt per 100k out of my RD28 and I don't baby it at all. I am even more happy with that after the figures you guys have quoted.

i average around 12.5l/100 combined cycle and driving like acomplete grandma on a roadtrip i once got to 10.9 on a roadtrip brisbane to cairns. ussually hway i get 11.7-12.0

i have done 13l/100ks on a trip but it is tuned for power and i am running 35s



i ve booked in to get lpg put on even if i do end up changing the motor
i can still use it ..

i here story's of people running 30psi boost on stock crank and rods
any body got any experiance with this ?