BD blowoff valve
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Senior User
Joined: Apr 2009
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From: Scenery hill,Pa.
BD blowoff valve
Hey guys i think im going to be buying a new turbo here in the following months. Im thinking about going with the H2 holset conversion or the newer ATS kit. Anoyone out there using the ATS? The reason im going with these set ups is once i buy diesel sites upgraded pump im in stalling 530s with head studs and ported plosihed heads, fireringed, head studded. These will all come with time but I want the turbo first. With this install I want to put a blow off valve in and I want to protect the $2200 investment. Only one i have seen that would work best for our trucks is the bd one. All the other ones have vacum hooked up to them some way and i would rather have the advaced BD one. Anyone ou there using these yet. . Should this get me up into the 400hp range with proper tuning? By my research i should be around 500 but find it hard to believe.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
Blow-off valve? Where did you get the idea you need one? Those are only used on gassers because of the butterfly in the throttle body. We don't have those in our trucks.
As far as the rest of it, you don't need most of that stuff to get to 400hp. You can do it with a van turbo or 38r and hybrids on an otherwise stock engine. I'm there now with that combination (van turbo and 235cc hybrids). And what year is your truck? The big mods you listed are mostly needed after you build up the bottom end first. What are you plans there?
As far as the rest of it, you don't need most of that stuff to get to 400hp. You can do it with a van turbo or 38r and hybrids on an otherwise stock engine. I'm there now with that combination (van turbo and 235cc hybrids). And what year is your truck? The big mods you listed are mostly needed after you build up the bottom end first. What are you plans there?
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From: Scenery hill,Pa.
Well the blowoff valve im looking at is more of a dump valve to keep me from breaking my turbo shaft with the elevated boost levels so after i let off the pedal it will dump the boost. Figured id be looking at around 45 plus. BD makes a kit im looking at if you wanna check it out on jegs or ebay.
Well the bottom end i have been debating on. I also have a 1995 that i just picked up for a mere $800 thats just needed some batts and a IPR. That also included a 96 engine. I have thought about sawpping rods out to my 02 since they have the weaker rods. I want something thats really gonna run well and push high horsepower. Im refusing to run NOS or propane though. I have a water meth system here i bought off my friend to help combat EGTS. Maybe ill build the 95 up. The thing is my 02 is in supreme condition and the oil hardly turns black in between oil changes. Seems kinda dumb to destroy the engines perfect quality. Cleveland brothers CAT just sent me my results for my oil sample and my engine is absolutely perfect. Maybe ill build the 95. I just dont know what truck to build. If i do build one im not chancing it and putting in a grudle with the forged rods. My real master plan is to build cummins killer!
Well the bottom end i have been debating on. I also have a 1995 that i just picked up for a mere $800 thats just needed some batts and a IPR. That also included a 96 engine. I have thought about sawpping rods out to my 02 since they have the weaker rods. I want something thats really gonna run well and push high horsepower. Im refusing to run NOS or propane though. I have a water meth system here i bought off my friend to help combat EGTS. Maybe ill build the 95 up. The thing is my 02 is in supreme condition and the oil hardly turns black in between oil changes. Seems kinda dumb to destroy the engines perfect quality. Cleveland brothers CAT just sent me my results for my oil sample and my engine is absolutely perfect. Maybe ill build the 95. I just dont know what truck to build. If i do build one im not chancing it and putting in a grudle with the forged rods. My real master plan is to build cummins killer!
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Joined: Jun 2006
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From: Brinklow Md
IMO you should put the build up the older motor and swap it into the 02. Combine the two motors you already have, and since your already going to be tearing apart the motor put a girdle in it too.
I dont know if you'll need a wastegate or not with the bigger turbos, but someone who does will chime in.
I dont know if you'll need a wastegate or not with the bigger turbos, but someone who does will chime in.
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From: Scenery hill,Pa.
IMO you should put the build up the older motor and swap it into the 02. Combine the two motors you already have, and since your already going to be tearing apart the motor put a girdle in it too.
I dont know if you'll need a wastegate or not with the bigger turbos, but someone who does will chime in.
I dont know if you'll need a wastegate or not with the bigger turbos, but someone who does will chime in.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
I've never seen anyone running a BOV on a diesel, and there are guys running way more boost than that. The BOV is there for gassers when the throttle body slams shut. We don't have anything like that, the air just keeps running through the valves even if it's not used. Diesels use variable fueling to adjust power and don't need a particular fuel/air mixture like gassers do. That's why we don't have throttle bodies.
If it were me in your shoes, I'd start building the 96 to get it ready to transplant in the 02. Heck, you could sell the '02 off to get some $$$ back if you wanted. But be warned -- stock forged rods aren't always all that safe. There have been several that have given up the ghost in the low 400s. I'm running in the 400s now with PMRs in my 02 on a stock bottom end. So far, so good.
If it were me in your shoes, I'd start building the 96 to get it ready to transplant in the 02. Heck, you could sell the '02 off to get some $$$ back if you wanted. But be warned -- stock forged rods aren't always all that safe. There have been several that have given up the ghost in the low 400s. I'm running in the 400s now with PMRs in my 02 on a stock bottom end. So far, so good.
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From: Scenery hill,Pa.
I must be slightly confused on the operation of a blow off valve then. I always though it dumped boost after decel to combat shaft breakage. I do know what your saying about the gas engines though with butterfly and all. If this is the case then why is BD selling a product that supposed to do what i have told you its supposed to do? This is false advertisment and ill have to tell them about that.
The forged rods really give out that easy? I thought the newer powderedized ones where know for that? If thats the case there goes another $2000 on a set of racing rods.lol
The forged rods really give out that easy? I thought the newer powderedized ones where know for that? If thats the case there goes another $2000 on a set of racing rods.lol
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Posting Guru
Joined: Dec 2003
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From: NW Arkansas
WOP sells a set of factory forged rods that are cryno'd. I was gonna try them but I decided to go 12v cummins instead.
I would say look into a gt42 or gt40 Garrett turbos instead of ATS stuff. There stuff is quite pricey. even a holset HX50 w/ a 13 or 15cm exhaust housing would spool really nice and flow large
I would say look into a gt42 or gt40 Garrett turbos instead of ATS stuff. There stuff is quite pricey. even a holset HX50 w/ a 13 or 15cm exhaust housing would spool really nice and flow large
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Thread Starter
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Senior User
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From: Scenery hill,Pa.
WOP sells a set of factory forged rods that are cryno'd. I was gonna try them but I decided to go 12v cummins instead.
I would say look into a gt42 or gt40 Garrett turbos instead of ATS stuff. There stuff is quite pricey. even a holset HX50 w/ a 13 or 15cm exhaust housing would spool really nice and flow large
I would say look into a gt42 or gt40 Garrett turbos instead of ATS stuff. There stuff is quite pricey. even a holset HX50 w/ a 13 or 15cm exhaust housing would spool really nice and flow large
Although im sure there is one out there
Posting Guru
Joined: Dec 2003
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From: NW Arkansas
You can look at those turbos on Garrett's website. Welcome to TurboByGarrett.com
I am picking up a 12v engine for $900 so i'm set there.. i'm gonna go compounds in the future..
The turbo will stay in the same spot. These turbos can be had for $12-1400 and you will need a install kit which I have found for around $1200.
This road will allow for alot of upgrades..
Hope this helps.
I am picking up a 12v engine for $900 so i'm set there.. i'm gonna go compounds in the future..
The turbo will stay in the same spot. These turbos can be had for $12-1400 and you will need a install kit which I have found for around $1200.
This road will allow for alot of upgrades..
Hope this helps.
Posting Guru
Joined: Dec 2003
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From: NW Arkansas
ohh.. jeez.. it's the 180 I think. I'm aiming for 600hp so i'm not too worried about finding a 98 manual p pump.
The new turbo set up has a t4 flange. (opposed the baby'sbutt stock set-up)
A well build kit should have a pedistal, new uppipes with appropriate flange set up, intake spyder and sometimes IC pipes.
It's not that big of a deal to bend your own IC pipes.. so some kits don't include them.
I hope this helps.
The new turbo set up has a t4 flange. (opposed the baby'sbutt stock set-up)
A well build kit should have a pedistal, new uppipes with appropriate flange set up, intake spyder and sometimes IC pipes.
It's not that big of a deal to bend your own IC pipes.. so some kits don't include them.
I hope this helps.
Thread Starter
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Senior User
Joined: Apr 2009
Posts: 301
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From: Scenery hill,Pa.
ohh.. jeez.. it's the 180 I think. I'm aiming for 600hp so i'm not too worried about finding a 98 manual p pump.
The new turbo set up has a t4 flange. (opposed the baby'sbutt stock set-up)
A well build kit should have a pedistal, new uppipes with appropriate flange set up, intake spyder and sometimes IC pipes.
It's not that big of a deal to bend your own IC pipes.. so some kits don't include them.
I hope this helps.
The new turbo set up has a t4 flange. (opposed the baby'sbutt stock set-up)
A well build kit should have a pedistal, new uppipes with appropriate flange set up, intake spyder and sometimes IC pipes.
It's not that big of a deal to bend your own IC pipes.. so some kits don't include them.
I hope this helps.
I looked at them a while ago and say the square flange. So its knida like the h2e setup? They come with everything though. What do you think is better the h2 holset or the garret.
Posting Guru
Joined: Dec 2003
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From: NW Arkansas
The GT40 and GT42 use a T4 or T6 flange. I would say that a T4 set-up would allow for you to go with alot of different turbo set-ups.
However, a modded H2e would def. make you happy as well.
I would find a diesel performance shop you like and talk it over with them and they can point you in the right direction.