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aj2burrows
P Plater
63 Posts
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 Posted - 27 Mar 2007 : 12:18:50 PM
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Hi
I saw in another post and that you can put a V8 throttle body on to the v6 just wondering what that would do??
Also can you put a V8 radiator into a v6???
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Joogie
Fully Licenced
291 Posts
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Posted - 27 Mar 2007 : 12:26:28 PM
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| there are alot of topics about v8 t/b. Yes its a straight bolt on. and as for radiator anything can be made to fit with enough money and time but i would say it cant be that hard. |
Boost me, and double clutch me so i can get my. Loss of Traction! |
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Joogie
Fully Licenced
291 Posts
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Posted - 27 Mar 2007 : 12:34:21 PM
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| oh and it does sfa besides a bit more response in throttle. |
Boost me, and double clutch me so i can get my. Loss of Traction! |
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aj2burrows
P Plater
63 Posts
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Posted - 27 Mar 2007 : 12:50:09 PM
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| Does getting the trottle body bored doing anything then??? |
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Joogie
Fully Licenced
291 Posts
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Posted - 27 Mar 2007 : 7:09:30 PM
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The V8 t/b is bigger than the V6 one. Im pretty sure a bigger t/b(bored bigger than V8 one) is still gonna have the same effect with a bog standard engine, it would be worth it if you are looking at going down the forced induction path though, even NA done up engine.
This is just what iv heard not 100% sure: the V6 t/b does not get maxed out at WOT( wide open throttle), so say a V8 one, WOT is the same as 75% open. So it will make small differance in acceleration at low throttle, but not much afterwards. |
Boost me, and double clutch me so i can get my. Loss of Traction! |
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SXC50L
P Plater
62 Posts
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Posted - 29 Mar 2007 : 03:46:02 AM
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| my throttle body opens up at 96%.. there is a program my mate has u connect it to you computer. u can do heaps with this program.i was looking at all the readings an had no idea on what i was lookin at lol but he does of course. he was muckin around with some settings got my t/b to open nelly rite up. after doin this i noticed the throttle response a fair bit. |
**My imaginary friend thinks u have serious problems...** |
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Joogie
Fully Licenced
291 Posts
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Posted - 29 Mar 2007 : 1:30:28 PM
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| I thought the only way to adjust how much the t/b opened was by filing off some metal on the stump that stops it opening to much... as most didnt go to 100% a bit of filing got you more throttle. obviously im wrong. Whats the program called? |
Boost me, and double clutch me so i can get my. Loss of Traction! |
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mouce
National Driver
1525 Posts
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Posted - 29 Mar 2007 : 8:43:26 PM
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quote:
Originally posted by SXC50L
my throttle body opens up at 96%.. there is a program my mate has u connect it to you computer. u can do heaps with this program.i was looking at all the readings an had no idea on what i was lookin at lol but he does of course. he was muckin around with some settings got my t/b to open nelly rite up. after doin this i noticed the throttle response a fair bit.
Do me a favour and smack your mate upside the head for lying to you. I just want to make this clear...
IT IS NOT POSSIBLE TO ADJUST YOUR THROTTLE OPENING USING A COMPUTER PROGRAM
It is possible to adjust what the computer expects to be the WOT voltage from the tps, and if this is what he has done, then you should smack him in the head twice.
It will work, but will be doing your car no favours. The reason for this is that the computer might BELIEVE that it's at WOT, when in reality it's not quite there, which means the airflow won't match what it is expected to. This will lead to the engine running rich at WOT, and the timing will be a little off as a result. This also leads to premature exhaust deterioration, excess heat build up and everything that goes with it.
I think it will also have been only a temporary adjustment because the Delco 1227808 ecm (which the VN runs) is not capable of being reprogrammed on the fly, you need to physically remove the chip, alter the settings on a computer, 'burn' the chip (in a similar way to how you would 'burn' a CD) then you need to re-install it all.
I have heard of some software that CAN temporarily override the chip for SOME settings, but you loose these 'adjustments' as soon as the car is switched off or the computer is unplugged.
The computer from the VR V8 I believe has the capacity to be reprogrammed on the fly, but even that is fairly buggy.
If you DO want to have the ability to reprogram on the fly, fork out the several grand required for a Motec system, personally I think it's overkill for the VN.
If you want to be able to RELIABLY modify your memcal (the chip that runs it all) then either do your research and learn how to burn your own chips, wait a little while until I've finished MY research and written the how-to (yes, it's still in development after almost 12 months of research) or take it to a professional and get it dyno tuned and a custom chip burned.
If you want your t/b to open any further than it currently does, you will need to PHYSICALLY grind away a little bit of the throttle stop post (there is a thread on dealing with your t/b in the how-to section).
Now that I've finished my little rant on that one...on to the original question at the start of the topic...
There are a LOT of threads that cover this, several that have been active recently. Search for them.  |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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