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TD42 turbo on a TB42
Posted: Sat Mar 03, 2007 3:39 am
by will off road
Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
Posted: Sat Mar 03, 2007 3:46 pm
by MyGQ
Everything but the plumbing from turbo to inlet i believe
TB42 and TD42 use the same exhaust bolt out pattern so the turbo manifold fits like a glove, the turbo bolts to that and then you just work out where to get your oil and water feeds from
Re: TD42 turbo on a TB42
Posted: Sat Mar 03, 2007 5:16 pm
by tuf045
will off road wrote:Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
a good guide to turbo sizes can be used @
http://www.turbofast.com.au/TFmatch.html
Posted: Sun Mar 04, 2007 9:17 am
by tna racing
MyGQ wrote:Everything but the plumbing from turbo to inlet i believe
TB42 and TD42 use the same exhaust bolt out pattern so the turbo manifold fits like a glove, the turbo bolts to that and then you just work out where to get your oil and water feeds from
there both got the same block and crank u can change a petrol 2 deisel wif a lot of fing around
Re: TD42 turbo on a TB42
Posted: Sun Mar 04, 2007 10:25 am
by MARKx4
tuf045 wrote:will off road wrote:Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
a good guide to turbo sizes can be used @
http://www.turbofast.com.au/TFmatch.html
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
Re: TD42 turbo on a TB42
Posted: Sun Mar 04, 2007 1:29 pm
by GQ4.8coilcab
MARKx4 wrote:tuf045 wrote:will off road wrote:Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
a good guide to turbo sizes can be used @
http://www.turbofast.com.au/TFmatch.html
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
T3/T4 turbos are the norm on cheap set ups. Give "MULISHA" a pm, he is setting up his now with a T4 turbo i think, but having a bit of trouble with tuning.
or, if you want a expensive set up, turbo a 4.8 like this
Re: TD42 turbo on a TB42
Posted: Sun Mar 04, 2007 4:30 pm
by MARKx4
GQ4.8coilcab wrote:MARKx4 wrote:tuf045 wrote:will off road wrote:Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
a good guide to turbo sizes can be used @
http://www.turbofast.com.au/TFmatch.html
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
T3/T4 turbos are the norm on cheap set ups. Give "MULISHA" a pm, he is setting up his now with a T4 turbo i think, but having a bit of trouble with tuning.
or, if you want a expensive set up, turbo a 4.8 like this
That would be nice, but alot of us dont have the cash to throw at a motor like that. Most just want to get the old tb42 moving a little better and a turbo set up is cheaper then a V8 conversion and if set up on straight gas it is cheaper aswell.
Posted: Sun Mar 04, 2007 5:49 pm
by nzdarin
For what you are doing you'd be better to go too small thanto big. Too big will give you a really laggy drive which you afford when you only have 4000 revs to play with. Don't get caught in the bigger is better idea as it isn't true. Not with a vehicle where you need drivavility anyway. If you want to size your turbo correctly you need to work out how many lbs of air your engine will need (and can use) and then get aturbo that will supply that. A very rough guide is multiply lbs by 10 and it will give hp, (but there's a lot more to it!) I'm no expert but I've just worked through this with some to spec the turbo for my conversion. t is amazing the crap you'll get if you don't deal with people who really know. I got my turbo off the Garrett agents in NZ and they have a very good reputation for specing turbos right. I'll find out in a couple of weeks.
Re: TD42 turbo on a TB42
Posted: Sun Mar 04, 2007 7:39 pm
by GQ4.8coilcab
MARKx4 wrote:GQ4.8coilcab wrote:MARKx4 wrote:tuf045 wrote:will off road wrote:Sorry to ask this when I am sure it is searchable but it is late and I got bored reading through search results. What parts from a TD42 turbo setup can be used on a TB42 and what would the expected power gain be. So far I have heard that the TD42 exhaust manifold is not rated high enough to give boost for a petrol engine but is fine if not going to powerful. Also have heard that due to the TD42s turbo being for a diesel it is no good for the petrol engine and so would need to be replaced, what would be a recommended replacement. As is obvious I am looking for a budget setup that give good power for dollars spent, so any other suggestions welcome.
a good guide to turbo sizes can be used @
http://www.turbofast.com.au/TFmatch.html
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
T3/T4 turbos are the norm on cheap set ups. Give "MULISHA" a pm, he is setting up his now with a T4 turbo i think, but having a bit of trouble with tuning.
or, if you want a expensive set up, turbo a 4.8 like this
That would be nice, but alot of us dont have the cash to throw at a motor like that. Most just want to get the old tb42 moving a little better and a turbo set up is cheaper then a V8 conversion and if set up on straight gas it is cheaper aswell.
X2,
the bloke who owns that has spent bucket loads on that thing
For under a couple of grand you can have a GQ that goes alright
Re: TD42 turbo on a TB42
Posted: Sun Mar 04, 2007 7:46 pm
by gqpete
GQ4.8coilcab wrote:MARKx4 wrote:GQ4.8coilcab wrote:MARKx4 wrote:tuf045 wrote:
a good guide to turbo sizes can be used @ his 4.8 turbo will work well cause he knows his stuff and done lots of homework before jumping in headfirst. garret helped source turbo etc. cant wait to see dyno results.
http://www.turbofast.com.au/TFmatch.html
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
T3/T4 turbos are the norm on cheap set ups. Give "MULISHA" a pm, he is setting up his now with a T4 turbo i think, but having a bit of trouble with tuning.
or, if you want a expensive set up, turbo a 4.8 like this
That would be nice, but alot of us dont have the cash to throw at a motor like that. Most just want to get the old tb42 moving a little better and a turbo set up is cheaper then a V8 conversion and if set up on straight gas it is cheaper aswell.
X2,
the bloke who owns that has spent bucket loads on that thing
For under a couple of grand you can have a GQ that goes alright
Re: TD42 turbo on a TB42
Posted: Mon Mar 05, 2007 6:04 pm
by rover1
gqpete wrote:GQ4.8coilcab wrote:MARKx4 wrote:GQ4.8coilcab wrote:MARKx4 wrote:
Having a go at that calculator, a TB42 will only need a GT25 turbo. That is with a max rev@4000 on 10-12 pound boost. Does that mean a T3/4 would be overkill?
T3/T4 turbos are the norm on cheap set ups. Give "MULISHA" a pm, he is setting up his now with a T4 turbo i think, but having a bit of trouble with tuning.
or, if you want a expensive set up, turbo a 4.8 like this
That would be nice, but alot of us dont have the cash to throw at a motor like that. Most just want to get the old tb42 moving a little better and a turbo set up is cheaper then a V8 conversion and if set up on straight gas it is cheaper aswell.
X2,
the bloke who owns that has spent bucket loads on that thing
For under a couple of grand you can have a GQ that goes alright
i wonder how its going to look after the OBC...
diesel turbo wont last 10sec on a petrol motor bofore the seals shit themselves. a mate tried it with a turbo off a case backhoe on an eh.
Posted: Mon Mar 05, 2007 6:54 pm
by stool
Whats the difference between the seals for a Diesel turbo vs petrol turbo.
More like the EH over reved the diesel turbo to death.
Posted: Mon Mar 05, 2007 6:59 pm
by MyGQ
that motor in the patrol (the 4.8L) What model motor is that and whats it out of? haven't seen that b4
Re: TD42 turbo on a TB42
Posted: Thu Feb 17, 2011 9:14 pm
by PatRick
That Truck is "SHRECK" GQ ute Which belongs to Andrew from ONTRACK 4x4, Its a 4.8 litre VCT out of series 2 GU patrol.
Re: TD42 turbo on a TB42
Posted: Fri Feb 18, 2011 9:38 am
by turps
PatRick wrote:That Truck is "SHRECK" GQ ute Which belongs to Andrew from ONTRACK 4x4, Its a 4.8 litre VCT out of series 2 GU patrol.
From what I have heard Andrew hasnt owned it for ages. Lives in QLD now