my carby motors getting old and cant be stuffed rebuilding it and being left with the same old thing.
i like the sound of a holden v8 at the right price and the extra torque at low rpm is something i'd really like lots. but is the power delivery very similar between the two tb42 motors? i know theres hardly any power increase.
diesels another option but i've been spending quite a bit recently on doing a home made efi setup on the carby motor so have fuel pumps and surge tanks ready to go and theres alot more dicking round with converting to diesel (well thats a personal opinion from the looks of things).
Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.
V8 vs Carby tb42 vs EFI tb42
Heh...its funny ive been wondering about the same thing. My ol carby TB42 is getting a bit tired and have considering rebuilding and trying to put together a copy of the EFI kit that Bru21 made. In his comments he says that the power delivery is *much* better, more responsive etc etc.
Im not really sure, but i think the standard torque from a Holden 304, isnt 'that' much different from the TB42(at low revs), just another 40 KW's of power when things get going.
Heres the specs ive got.
TB42
125kw @ 4200
323NM @ 2800
Holden 304 std
165kw @ 4400
385nm @ 3600
These specs have made me wonder if spending the $7000 on a 304 engine conversion is worth it. Dont get me wrong, i would lurrrrrrv the sound, but id really like something a little more for the money
Would be really interesting to see a real life dyno chart side by side of these stock engines, and see what the torque is at 1500rpm etc.
Im not really sure, but i think the standard torque from a Holden 304, isnt 'that' much different from the TB42(at low revs), just another 40 KW's of power when things get going.
Heres the specs ive got.
TB42
125kw @ 4200
323NM @ 2800
Holden 304 std
165kw @ 4400
385nm @ 3600
These specs have made me wonder if spending the $7000 on a 304 engine conversion is worth it. Dont get me wrong, i would lurrrrrrv the sound, but id really like something a little more for the money
Would be really interesting to see a real life dyno chart side by side of these stock engines, and see what the torque is at 1500rpm etc.
yeah my efi setup is a copy of the one bru21 did. after spending the money on it all (which ended up close to 1000 bucks) i later saw on this very site an injected tb42 with computer for like 1500 and i was like 
!!!! but that happens sometimes.
its not bad but its not exactly what i was hoping for, pings a bit too easily for my liking under not really heaps of load.
How much do you normaly have to spend to do a diesel conversion?
!!!! but that happens sometimes.its not bad but its not exactly what i was hoping for, pings a bit too easily for my liking under not really heaps of load.
How much do you normaly have to spend to do a diesel conversion?
i have had 2 patrols with 5ltr conversions and i wouldnt waste time again (conversion cost me nothing but time) the torque from the 5ltr is crap and you need to always be reving it to get anywhere and to stop it stalling over obstacles. and they only put 100kw to the wheels . a sorted out carby motor can do the same . the better option is a factory efi manifold & injectors and a aftermarket ecu . costs less than the 5ltr conversion and more torque and more power .
Ok, just as a matter of conversation, ill add this.
What about fuel econ ? Ive been told that the economy gets boosted by upto 25% when the 304 coversion is done. (So 15l/100km, instead of 20l/100km)
Is this true ? And would anyone know of a way to bring the TB42 in line with that sort of economy assuming the above mentioned mods... because my feeling would be that increasing the power output of a TB42 is going to push the economy waaaaay in the other direction. eg 30l / 100km. Which is just gona kill a daily driver.
What about fuel econ ? Ive been told that the economy gets boosted by upto 25% when the 304 coversion is done. (So 15l/100km, instead of 20l/100km)
Is this true ? And would anyone know of a way to bring the TB42 in line with that sort of economy assuming the above mentioned mods... because my feeling would be that increasing the power output of a TB42 is going to push the economy waaaaay in the other direction. eg 30l / 100km. Which is just gona kill a daily driver.
yeah ive been keen to find that out too, im like just about to do the 5ltr conversion but the only thing thats holding me back is the economy.
I'd be looking at putting the vs 5ltr in, i got a mate who had the same engine in the commodore, he reckons he was getting between 500 - 600kms per 65ltrs, so say 11 - 13ltr/100km. Commodore is a lighter car with around 30% over drive, im not sure what the patrol/mav has, prob around half. I'd be guessing around 15-16ltr/100kms, depending on tyre size.
If anyone out there has some figures, share them around please...
I'd be looking at putting the vs 5ltr in, i got a mate who had the same engine in the commodore, he reckons he was getting between 500 - 600kms per 65ltrs, so say 11 - 13ltr/100km. Commodore is a lighter car with around 30% over drive, im not sure what the patrol/mav has, prob around half. I'd be guessing around 15-16ltr/100kms, depending on tyre size.
If anyone out there has some figures, share them around please...
Who is online
Users browsing this forum: No registered users and 1 guest