Well thought it was about time to update my thread!
Everythings working and driving sweet!
i'v had afew beers so bare with me..
Just to re hash i put a 5.0l v8 into a gu4.5, mods to engine were complete rebuild,heads ported,hardened valves,hsv headers/exhaust and hsv chip.
makes 160hp at wheels on petty and bout 7 hp different on gas!
tb45 used to make 110hp at wheels!
Gossy's done the dyno tune and reckoned that in a comma it would have made about 210 odd hp, so there's quite a bit of loss in the weight and drive train
not a big difference i know.. power has gone from geez this is sh1tting me to mmm comfortable! but deffinately not oh sh1t hang on power..
if someone was going from a 2.8 or NA 4.2 they would notice a big difference!
total cost for conversion was prob about 6, thats after i sold afew things!
as for ecconomy im getting about 40-50km more per tank of gas then the tb45 so 440 odd per 90l!
problems encounted during the conversion was the holden power steer bracket, it had to be chopped and modded to clear the steering box!
also the loom that i had custom made was meant to be plug and play...it was not!
the speed interface box i was made also gave afew dramas involving blown fuses,shorting out the speedo fuse on the back of the cluster and telling the ecu that the car was doing 15km/h at idle....!
so im currently getting that sorted out..
i had to swap my tb45 radiator with a zd3.0 one, as the inlet and outlet hoses were on the wrong side with the tb45 radiator!
and as for over heating issues..there are none what so ever, and i have given it some pedal up the beach with trailer in tow afew times and also sand and mud recovery's!
i used the heavy duty chev clutch and pressure plate as it was cheaper then the standed clutch, so the imput shaft(spacer bearing??) had to be machined down! thers a slight squeel while the clutch is depressed about 30mm! used all standed tb45 clutch cylinders!
now i have not surrended in saying this but i have already been sourcing/pricing 355 stroker parts/cam etc
from the few blokes iv spoken to about a stroker in ther gu's there getting about 250hp at the wheels with 33's but its the torque that these blokes love over the 5.7!
i dont plan on doing it for a while but would love to do it!
i know my mixer will be right but the tb45 pump gives up at around 210hp!
now im not getting spitefull here, but are all those 300wrkw 6.0l in patrols or still in the commas??
i'd be thinking that you would take off 1/3 of that for the weight/drive train and aerodynemic's(spelling) of the brick that is a GU
one main question i have is- do people still use the gm power steer pump of do they graft something else to fit?
because at slow random intervals the steering "stutters" which while 4wdriving can be a pain!
i spoke to marks and they reckon thats all they ever use..!
so i dont know if mines just flogged out??
now would i do this conversion again with a 5.0l..NO!
But if i had a 355 stroker or iron block/head 350 chev..YES
i'l have to get those pics up..
open to responses both good and bad
cheers fellas
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