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Re: Turbo Build for the duster info please [Re: JackGTX440] #1299202
09/10/12 01:08 PM
09/10/12 01:08 PM
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Oakland, MI
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dizuster Offline
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The only big cost of doing twins instead of single is that you end up with 2 waste gates. Other then that, it's pretty similar in costs. You have to build two hot sides anyway. You either merge the exhaust, or you merge the boost. Either way it's about the same fab work.

With twins you'll need two WG's though, so that is about your only redundant cost. In general two small turbos = $$$ 1 big turbo. The packaging of twins is definately easier since you have a much smaller turbo to work with. Packaging a big T6 can be a bit of a hassle, but nothing impossible.

Re: Turbo Build for the duster info please [Re: Georg] #1299203
09/10/12 02:15 PM
09/10/12 02:15 PM
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Ontario Canada
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MattW Offline
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Quote:

Who told such a silly thing that this motor is not capable for turbos? Check Jesel turbochargerd truck or Blowfish (landspeed record holder)car who took over 2000 hp out of this R5P7 motor with turbocharger.
With right parts and redline limit to around 8500 RPMs you can make 1000+ hp easely. I lso spoke with Steve Morris about it and he told that with alcohol and turbo/turbos some 1200hp is absolutely no problem for such a motor
Good luck and keep us posted. To be honest then turbocharge this motor is in my plans as well...
Here is a link of my friends V6 turbocharged Buick. This motor have a VERY big turbo and that motor produce near 1500hp right now I guess with ethanol fuel. If this little V6 can handle such a boost (over 25PSI) then why R5/P7 cant do it? Just need to have good ECU to control everything and FAST Xfi defenately is the one
This black Buick what made terrible wheelstands is the one what Iam talkeing about : http://www.youtube.com/watch?v=EZYhXc_cR0g
best time so far 7,65sec




I thought BLOWFISH was a 4 cylinder miget engine with a P 7 head.

Re: Turbo Build for the duster info please [Re: MattW] #1299204
09/10/12 02:20 PM
09/10/12 02:20 PM
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Holly, MI
JackGTX440 Offline
mopar
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Quote:

I thought BLOWFISH was a 4 cylinder miget engine with a P 7 head.




I thought this too


Jack Irons Jr. '67 GTX, turbo 6.1 HEMI
Re: Turbo Build for the duster info please [Re: JackGTX440] #1299205
09/10/12 02:32 PM
09/10/12 02:32 PM
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Ontario Canada
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MattW Offline
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Just confined this but with a P5 head. Maybe they changed engines?

Re: Turbo Build for the duster info please [Re: MattW] #1299206
09/10/12 05:15 PM
09/10/12 05:15 PM
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Milwaukee WI
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TRENDZ Offline
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2 turbos one wastegate. Much easier to synchronize launch boost control. Go with efi. Nobody that has used efi on a turbo would ever go back to a carb, even more so on a street driven car.A carb may be all you need... but it wont be all you want.


"use it 'till it breaks, replace as needed"
Re: Turbo Build for the duster info please [Re: MattW] #1299207
09/10/12 05:17 PM
09/10/12 05:17 PM
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Menomonee Falls
DemonDust Offline OP
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I just looked thru all the pics of the build. That is def a R5P7. Looking thru the pics I also noticed something that they did. They pressed a slug into the open deck of the engine to seal it off. I'm guesing they didn't trust the open deck with boost?

I couldn't get the pics off radrides, so here is a pic of my engine with the open deck.



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Re: Turbo Build for the duster info please [Re: TRENDZ] #1299208
09/10/12 05:23 PM
09/10/12 05:23 PM
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Menomonee Falls
DemonDust Offline OP
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Quote:

2 turbos one wastegate. Much easier to synchronize launch boost control. Go with efi. Nobody that has used efi on a turbo would ever go back to a carb, even more so on a street driven car.A carb may be all you need... but it wont be all you want.




I think I'm pretty set on EFI. Not sure about twins though. I have a lot of room in my engine bay but I think it would be just too cluttered for me.

Maybe someone has some pics of twin turbo setups under the hood of a mopar? I don't want to see non 70's era twin turbo pics. I want it to relate to what I'd be doing.


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Re: Turbo Build for the duster info please [Re: DemonDust] #1299209
09/10/12 05:30 PM
09/10/12 05:30 PM
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Menomonee Falls
DemonDust Offline OP
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Here are some pics under the hood so you can get an idea of the room I have. The drivers side is kind of restricted due to the oiling system.







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Re: Turbo Build for the duster info please [Re: JackGTX440] #1299210
09/10/12 06:16 PM
09/10/12 06:16 PM
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smokinwoody Offline
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Quote:

Quote:

I thought BLOWFISH was a 4 cylinder miget engine with a P 7 head.




I thought this too




http://smg.photobucket.com/albums/v506/smokinwoody/BLOWFISH/?albumview=slideshow


some pics at Rad Rides


Re: Turbo Build for the duster info please [Re: smokinwoody] #1299211
09/10/12 06:28 PM
09/10/12 06:28 PM
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Ontario Canada
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MattW Offline
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Quote:

Quote:

Quote:

I thought BLOWFISH was a 4 cylinder miget engine with a P 7 head.




I thought this too




http://smg.photobucket.com/albums/v506/smokinwoody/BLOWFISH/?albumview=slideshow


some pics at Rad Rides






The Hot Rod article shows a P5 and 4 cylinder midget engine. They must of changed engine because your photo is a R5 P7. Soooooo
Just went through your photo album and the midget engine is there. They must of upgraded it. LOL

Last edited by MattW; 09/10/12 06:32 PM.
Re: Turbo Build for the duster info please [Re: MattW] #1299212
09/10/12 06:37 PM
09/10/12 06:37 PM
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smokinwoody Offline
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those pictures are when they were re-configuring the car after they had run it with the 4cyl....they wanted to go faster obviously...

Re: Turbo Build for the duster info please [Re: MattW] #1299213
09/10/12 06:40 PM
09/10/12 06:40 PM
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Menomonee Falls
DemonDust Offline OP
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I see they are running dual waste gates on this setup. Is that needed?

What is better wastegate or BOV? and why?


SDG Motorsports
Hellcat Demon and Redeye Supercharger CNC Porting
https://www.sdgmotorsports.com/
Re: Turbo Build for the duster info please [Re: DemonDust] #1299214
09/10/12 07:28 PM
09/10/12 07:28 PM
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Indy
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joshking440 Offline
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you will be ok with a single 60mm Tial Gate or a 66mm Precision Gate. Buy the big tial BOV as well

Re: Turbo Build for the duster info please [Re: DemonDust] #1299215
09/10/12 07:33 PM
09/10/12 07:33 PM
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Southington Ct.
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turbobitt Offline
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Quote:

I see they are running dual waste gates on this setup. Is that needed?

What is better wastegate or BOV? and why?




A BOV serves a different purpose. It dumps boost when you get off the throttle. When the throttle blade closes, the pressure spike is far greater than boost pressure and puts a lot of load on the compressor.
The make some large gates that can handle a lot of flow and don't think you would need two gates.

Allan G.


1970 Challenger w/572 Hemi street car and my pride and joy. 1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno. 1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
Re: Turbo Build for the duster info please [Re: turbobitt] #1299216
09/10/12 08:28 PM
09/10/12 08:28 PM
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Menomonee Falls
DemonDust Offline OP
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Ok I kinda thought that was overkill.

What are your thoughts on the open deck?


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https://www.sdgmotorsports.com/
Re: Turbo Build for the duster info please [Re: DemonDust] #1299217
09/10/12 09:20 PM
09/10/12 09:20 PM
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Southington Ct.
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turbobitt Offline
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Quote:

Ok I kinda thought that was overkill.

What are your thoughts on the open deck?




I don't know much about that but it looks like it can move around under load/boost ??

Allan G.


1970 Challenger w/572 Hemi street car and my pride and joy. 1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno. 1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
Re: Turbo Build for the duster info please [Re: turbobitt] #1299218
09/10/12 09:58 PM
09/10/12 09:58 PM
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Menomonee Falls
DemonDust Offline OP
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Quote:

Quote:

Ok I kinda thought that was overkill.

What are your thoughts on the open deck?




I don't know much about that but it looks like it can move around under load/boost ??

Allan G.




This is the only part that has ever worried me about putting boost to it. The walls are very thick butI don't know how much it would take to flex it. I would think the whole bank would have to flex and the only way I could imagine it flexing would be up and down. I would think that it would be flexing already at the current power level. Do you think the head and all the bolts would hold the jugs in place?


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Re: Turbo Build for the duster info please [Re: DemonDust] #1299219
09/10/12 10:28 PM
09/10/12 10:28 PM
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Oakland, MI
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dizuster Offline
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Few comments, first of all you have A LOT of room to work with packaging 6 turbos in, let alone 2, let alone 1. Nothing to worry about there...

I wouldn't worry about the block at all. 1200hp is sort of a joke. Honestly it would be a waste of a motor that good. You could make 1200hp with a 383/400 and Indy SR heads. WAAAAAY cheaper, and WAAAAY easier.

As trendz said, EFI is nice, amazing drivability, and tuning to the greatest degree. But no one can argue with the fact that you can simply bolt a carb on and go... no tuning needed other then the occasional jet change.

Re: Turbo Build for the duster info please [Re: dizuster] #1299220
09/10/12 10:52 PM
09/10/12 10:52 PM
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Menomonee Falls
DemonDust Offline OP
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Quote:

Few comments, first of all you have A LOT of room to work with packaging 6 turbos in, let alone 2, let alone 1. Nothing to worry about there...

I wouldn't worry about the block at all. 1200hp is sort of a joke. Honestly it would be a waste of a motor that good. You could make 1200hp with a 383/400 and Indy SR heads. WAAAAAY cheaper, and WAAAAY easier.

As trendz said, EFI is nice, amazing drivability, and tuning to the greatest degree. But no one can argue with the fact that you can simply bolt a carb on and go... no tuning needed other then the occasional jet change.




I know the T6 was mentioned as a good turbo to use. I have no idea how big size wise this is. But by your comment I should have no problem stuffing it under the hood?

1200 hp was just a starting point if I can safely go more I will. I'm not scared

The reason I liked the efi was because it could mange my system better and data log. If I could make big power with a carb I would. I just don't want high maintenance. I like the idea of the computer changing jets for me


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Re: Turbo Build for the duster info please [Re: dizuster] #1299221
09/10/12 11:01 PM
09/10/12 11:01 PM
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Southington Ct.
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turbobitt Offline
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Quote:


As trendz said, EFI is nice, amazing drivability, and tuning to the greatest degree. But no one can argue with the fact that you can simply bolt a carb on and go... no tuning needed other then the occasional jet change.




I don't have any experience on carb turbo cobinations so don't want to come accross as the athority on Turbocharging but I would really think that there is nothing to be saved in a blow-through system. If you seen a well tuned fuel map and the changing A/F table required to make reliable HP you would see why I have this bias opinion to EFI. Fixing a melt-down is not way easier.

For example, A/F starts at about 13.7 at low boost/vacuum to about 11.5 at 30# boost. Any change to the weather conditions and the wide band O2 will add fuel and potentially save an engine.

Allan G.

Last edited by turbobitt; 09/10/12 11:02 PM.

1970 Challenger w/572 Hemi street car and my pride and joy. 1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno. 1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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