?s about 351ve and 451ve

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bwdt

engineer
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Oct 19, 2009
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I'm interested in putting one of these on a 24 valve vp truck and want to know what their differences are and what the differences would be like while driving on a vp truck.... What should I expect? Sorry if this info is available somewhere else on this site.
 
search Blackskyracing- he has a 451ve on his 12 valve and should be able to help you out.
CSMdiesel has a 351ve on his truck as well as quite a few others. search "vgt".
 
The 451 really isn't going to have much benefit over the 351 IMO. There seems to be a couple of different turbine wheels - 74/60, 76/60, and 8?/67. Otherwise you have the same 60/88 CNC billet aluminum compressor wheel the 351 has (BTW the 351ve turbine is 70/60). Unless of course you find a 451VeTi which will have a Titanium wheel, this will actually spool slower because it is heavier than an Aluminum wheel and a little bigger - 60/93 (though to me the VGT still spools wicked fast I can only imagine with an Aluminum wheel). Also, you will more than likely end up with a bigger housing on the 451 as the most common one seems to be a 29cm housing (that's what I have) and a 31cm housing, whereas the 351 is 25cm...Though once in a while you will find a 431 with a 19cm housing, I would actually like to find one of these for myself to see if it will fit mt 451 or if it can be modified to fit a 551 :evil.

Either way they will both support 500hp #2 only without getting too hot (my pyro stopped dead at 1250* when I laid down 422/903 with 39psi boost and 60psi of drive). Though I think the 451 would be more suitable for twins since it has a bigger housing and would be less likely to need an external gate set-up for a higher HP build. At least so I hope because I plan to throw an HT60 under mine sometime in the future.
 
Wow, Thanks,
If you were looking for 450 to 500 towing power, which one would you use?

I have a 62/65-12 and have major heat issues while towing. This is why I'm looking at using one of these. I bought a stainless steel exhaust manifold that I plan on modifying to bolt the turbo to. All I have to do is figure out if I want to use the electronic controller from Fleece or go with a manual set up using exhaust pressure or boost pressure. I have come up with a delay valve to slow the the variable housing down so the turbo won't bark.

Any help is appreciated.
 
bwdt said:
Wow, Thanks,
If you were looking for 450 to 500 towing power, which one would you use?

I have a 62/65-12 and have major heat issues while towing. This is why I'm looking at using one of these. I bought a stainless steel exhaust manifold that I plan on modifying to bolt the turbo to. All I have to do is figure out if I want to use the electronic controller from Fleece or go with a manual set up using exhaust pressure or boost pressure. I have come up with a delay valve to slow the the variable housing down so the turbo won't bark.

Any help is appreciated.
Click to expand...

If 500 was where you plan to stop at for a MAX hp range I would say the 351 since it it more widely available and cheaper. Like I said the compressor side of the 351 and the 451 are IDENTICAL, so there's no sense in spending the extra money for the 451 unless you planned on building high hp twins... Then the only benefit is the bigger housing and bigger exhaust wheel (up to 67mm) you can get with the 451 to flow better up top on the turbine.:Cheer:
 
bwdt said:
Wow, Thanks,
If you were looking for 450 to 500 towing power, which one would you use?

I have a 62/65-12 and have major heat issues while towing. This is why I'm looking at using one of these. I bought a stainless steel exhaust manifold that I plan on modifying to bolt the turbo to. All I have to do is figure out if I want to use the electronic controller from Fleece or go with a manual set up using exhaust pressure or boost pressure. I have come up with a delay valve to slow the the variable housing down so the turbo won't bark.

Any help is appreciated.
Click to expand...

Whats that delay valve your talking about? thanks!

To the OP, i put on a 351ve on my 24valve and love it!
at this elevation i wouldnt like it to tow at 500 hp...
 
a delay valve allows the air to flow in the vacuum line in one direction and bleed slowly in the opposite direction.
what is your altitude? What kind of heat do you see? Do you tow?
 
Fleece and Industrial injection have some upgraded He351ve, is these a good solution to keep the drive pressure and egt low.
 
MiB said:
Fleece and Industrial injection have some upgraded He351ve, is these a good solution to keep the drive pressure and egt low.
Click to expand...

If they put in Borg-Warner wheels/shaft, then yes, they will help. The stock exhaust side wheel is only 60mm whereas the Borg-Warner wheel should be 65mm and they would probably have put a 62mm wheel in the compressor side... The only thing that kinda makes me shy away from that is II was asking $2500 for a 62/65/VGT built off a 351 last I checked. But, then again, I was quoted $1k for the same mod on my 451 since there's less modification to the exhaust side to fit the 65mm exhaust wheel and we think a 64mm wheel will fit.:evil
 
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