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Re: Turbo Build for the duster info please [Re: turbobitt] #1299222
09/10/12 11:22 PM
09/10/12 11:22 PM
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Temperance, MI
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prochargedhemi Offline
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for efi system i would really look into the new Holley HP efi. kit #550-605 if your proficient at wiring that kit has an unterminated harness that you will have to put ends on etc. yourself.

Fuel system go as big as you can. however, remember that all big electric pumps have huge electric draw. I have had good luck with the magnafuel efi series pumps and also if you don't mind it cranking a revolution or two more the aeromotive belt drive pump is also a great alternative.

Re: Turbo Build for the duster info please [Re: prochargedhemi] #1299223
09/10/12 11:35 PM
09/10/12 11:35 PM
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust Offline OP
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I was actually looking at the magnafuel stuff. Seems like they make pumps that handle what I need.

I thought I read or heard at sometime in my life that quench doesn't really bother a turbo build. If this is true could I just get shorter rods to drop the comp ratio? The reason I am asking is I have a nice set of pistons that utilize a 927 pin. If I could just buy rods instead of pistons as well would shave 1k off this build that I could put in a different area. Just brain storming here. If not it's fine just a thought.


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Hellcat Demon and Redeye Supercharger CNC Porting
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Re: Turbo Build for the duster info please [Re: turbobitt] #1299224
09/10/12 11:38 PM
09/10/12 11:38 PM
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto Offline
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Plymouth Meeting, PA
Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.


BB, TT5,Procharged 3300lb Street Car 4.79/154
Re: Turbo Build for the duster info please [Re: bigtimeauto] #1299225
09/10/12 11:43 PM
09/10/12 11:43 PM
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust Offline OP
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Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.




Huh?

Last edited by R5P7Duster; 09/10/12 11:44 PM.

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Re: Turbo Build for the duster info please [Re: DemonDust] #1299226
09/10/12 11:50 PM
09/10/12 11:50 PM
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto Offline
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Quote:

Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.




Huh?




detonation shows up as a rich condition to the 02


BB, TT5,Procharged 3300lb Street Car 4.79/154
Re: Turbo Build for the duster info please [Re: bigtimeauto] #1299227
09/10/12 11:54 PM
09/10/12 11:54 PM
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto Offline
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No matter what you decide to do, you either need somebody really good who can help you or you need to be really good at reading plugs. They are the only thing that tells you whats going on inside the engine.


BB, TT5,Procharged 3300lb Street Car 4.79/154
Re: Turbo Build for the duster info please [Re: bigtimeauto] #1299228
09/11/12 01:14 AM
09/11/12 01:14 AM
Joined: Oct 2007
Posts: 485
Raleigh, NC
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j.mcconnell Offline
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Raleigh, NC
Just slap at 80mm+ t6 based turbo on there with a big hot-side housing and all the supporting hardware (BOV/WG/Carb/Pump), let it eat and report back on how the nascar engine holds up. dumber stuff has been done and held together. you probably wont make 1000+ but you'll get your feet wet, see what flys apart and go from there. These are uncharted waters in mopar-land, even more so with ex-cup parts.

I'm going to throw a BW 75mm($400 @ ebay) on a small block MP 3.454in crank($50 @ Carlisle), Lentz 6.2in. roundy-round takeout rods ($150 @ ebay) and custom pistons in a free 318 block. Shooting for 10's for $5k including whatever kind of disposable a-body/f-body/dakota I find on craigslist for cheap.

Re: Turbo Build for the duster info please [Re: bigtimeauto] #1299229
09/11/12 08:37 AM
09/11/12 08:37 AM
Joined: Aug 2005
Posts: 760
Southington Ct.
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turbobitt Offline
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Southington Ct.
Quote:

Quote:

Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.




Huh?




detonation shows up as a rich condition to the 02




My example is not with E85 but with race gas. Don't know the optimal A/F for E85.

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: j.mcconnell] #1299230
09/11/12 08:48 AM
09/11/12 08:48 AM
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust Offline OP
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DemonDust  Offline OP
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Menomonee Falls
Quote:

Just slap at 80mm+ t6 based turbo on there with a big hot-side housing and all the supporting hardware (BOV/WG/Carb/Pump), let it eat and report back on how the nascar engine holds up. dumber stuff has been done and held together. you probably wont make 1000+ but you'll get your feet wet, see what flys apart and go from there. These are uncharted waters in mopar-land, even more so with ex-cup parts.

I'm going to throw a BW 75mm($400 @ ebay) on a small block MP 3.454in crank($50 @ Carlisle), Lentz 6.2in. roundy-round takeout rods ($150 @ ebay) and custom pistons in a free 318 block. Shooting for 10's for $5k including whatever kind of disposable a-body/f-body/dakota I find on craigslist for cheap.




Why would I do that? I bought my stuff before it was cheap. I've got a lot in it. I'm not gonna grenade it just because I want to see what will fail first. My block has bushed keyway lifters, no way am I spending money to do that again on a count of stupidity.

You have fun blowing up your 318 diplomat...


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Hellcat Demon and Redeye Supercharger CNC Porting
https://www.sdgmotorsports.com/
Re: Turbo Build for the duster info please [Re: DemonDust] #1299231
09/11/12 08:50 AM
09/11/12 08:50 AM
Joined: Aug 2005
Posts: 760
Southington Ct.
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turbobitt Offline
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Quote:

I was actually looking at the magnafuel stuff. Seems like they make pumps that handle what I need.

I thought I read or heard at sometime in my life that quench doesn't really bother a turbo build. If this is true could I just get shorter rods to drop the comp ratio? The reason I am asking is I have a nice set of pistons that utilize a 927 pin. If I could just buy rods instead of pistons as well would shave 1k off this build that I could put in a different area. Just brain storming here. If not it's fine just a thought.




One thing you need to do is look at the fuel output at the intended boost. You FP regulator will need to raise the fuel pressure at a 1:1 ratio to keep the pressure differential the same across the injector. For example, lets say base fuel pressure is 45 psi, at 20 psi boost fuel pressure would be 65 psi so the flow rate is consistant. This is where it gets challenging for the pumps. A lot of manufactures advertise impressive flow rates at base pressure but they all fall off under higher pressure where you need it the most. Since most of them offer a flow graph, I would select a pump based on projected power, and 30 psi boost + 45 psi(Base pressure) or 75 psi. This should be enough to cover your needs and future upgrades. You will find that there are not many pumps that can support that flow. As stated above, voltage supply will be important.
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] #1299232
09/11/12 01:29 PM
09/11/12 01:29 PM
Joined: Sep 2007
Posts: 468
Dirty Dena, Maryland
dodge turbo Offline
mopar
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Dirty Dena, Maryland
You need to get on a turbo specific site since you are brand new to this to answer a lot of questions and look at other peoples builds reguardles of brand..a engine is a engine reguardless of brand. Turbomustangs.com is full of info and will answer all your question all you need to do is read alot


78 Adventurer 150small block turbo'd 360w/Borg S475....smoke'em
Re: Turbo Build for the duster info please [Re: dodge turbo] #1299233
09/11/12 01:54 PM
09/11/12 01:54 PM
Joined: May 2004
Posts: 453
Holly, MI
JackGTX440 Offline
mopar
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Holly, MI
Ditto


Jack Irons Jr. '67 GTX, turbo 6.1 HEMI
Re: Turbo Build for the duster info please [Re: JackGTX440] #1299234
09/11/12 04:51 PM
09/11/12 04:51 PM
Joined: Dec 2006
Posts: 3,533
Indiana
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Fury Fan Offline
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Indiana
Quote:

Ditto




Visit the mopar section of the turboforums and read, read, read. Learn to sift thru teh crap. Learn who has good experience/advice and who doesn't.

As a somewhat-famous person on the mustangforums said - 'everybody blows up their 1st turbo motor'. Keep that in mind with your expensive R5P7. If you detonate a NA engine you ease off and drive home thinking about your next tunign change. Detonate a turbo engine and liekly the towtruck driver will ask you why you're crying.

http://www.turbomustangs.com/smf/index.php?board=21.0

Last edited by Fury Fan; 09/11/12 04:51 PM.
Re: Turbo Build for the duster info please [Re: bigtimeauto] #1299235
09/11/12 06:06 PM
09/11/12 06:06 PM
Joined: Nov 2006
Posts: 2,255
IL
furious70 Offline
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Quote:

Quote:

Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.




Huh?




detonation shows up as a rich condition to the 02




Generally, you would have _very_ small limits programmed in for removing fuel based on O2 to safeguard against this sort of thing. Better to have the thing loading up and going pig rich while you tune than have it erroneously take out fuel when you need it.


70 Sport Fury
68 Charger
69 Coronet
72 RR
Re: Turbo Build for the duster info please [Re: furious70] #1299236
09/11/12 08:26 PM
09/11/12 08:26 PM
Joined: Aug 2005
Posts: 760
Southington Ct.
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turbobitt Offline
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Joined: Aug 2005
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Southington Ct.
Quote:

Quote:

Quote:

Quote:

Quote:



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.




I would never let my EFI go closed loop with e85 especialy If your not using a lab grade sensor.




Huh?




detonation shows up as a rich condition to the 02




Generally, you would have _very_ small limits programmed in for removing fuel based on O2 to safeguard against this sort of thing. Better to have the thing loading up and going pig rich while you tune than have it erroneously take out fuel when you need it.




Good point and that is exactly how mine is set up. The is another nice feature of EFI, it can be limited to how much correction and in what direction.

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: DemonDust] #1299237
09/12/12 10:02 AM
09/12/12 10:02 AM
Joined: Jan 2006
Posts: 452
nc
cold85 Offline
mopar
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nc
are you building for a class?

Re: Turbo Build for the duster info please [Re: cold85] #1299238
09/12/12 08:53 PM
09/12/12 08:53 PM
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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dizuster Offline
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Oakland, MI
As bigtime pointed out, the EFI doesn't (ok... can but shouldn't) control the fuel based on live O2 information. If the car goes lean, the EFI is usually in "open loop" under full throttle. This means any lean/rich spikes WON'T be compensated for. Works just like a carb.

Also, anyone who thinks setting up EFI to work is easier then a carb is fooling themselves. Yes once you get it dialed in, changing A/F ratio is as simple as a few key strokes, but I can tell you that I've made 2 jet changes on my blow through carb, and it idles and drives perfect with that little effort.

As for the turbo, yes you have a ton of room for a T6. However, if you're going to use that motor, a T4 would probably work (just because it's only 358"). As others have suggested, get on some turbo forums.

The turbo information on here is sparse and you've got a LONG way to go before you start buying parts. No offense, but if you don't know the difference between a BOV and a WG, you're not ready to buy any parts. Don't take that the wrong way, it's just there is a lot to learn about turbo's that is a lot different from NA stuff.

Seriously though, you need to pick a real HP goal. That is the biggest problem that gets people into trouble. Saying I want to make 1200 or more doesn't help anyone point you in the right direction. Remember that you need a chassis, rear axle, fuel system, etc to support the power. Set a plan and stick with it. 1200hp is A LOT more then what you have now, and you certainly don't need a R5/P7 motor to make that happen. You could sell it off and be miles ahead with the project if you did something more conventional.

BTW... one word of advice, E85 is probably not going to work at the ice drags. It doesn't start very good at E85, and in the cold states it gets watered down to E70 just to get cars to start/run/idle right in the cold. I think you'd be better off sticking with pump gas and an intercooler. The cold air will work great, and you can make all the power in the world on 93 and a good intercooler.

Re: Turbo Build for the duster info please [Re: dizuster] #1299239
09/12/12 09:16 PM
09/12/12 09:16 PM
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Posts: 3,635
Oakland, MI
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dizuster Offline
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T6 in an early b-body. You have a lot more room then I do.

Re: Turbo Build for the duster info please [Re: dizuster] #1299240
09/13/12 12:04 AM
09/13/12 12:04 AM
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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TRENDZ Offline
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Milwaukee WI
There are things that I agree and disagree with on diz's post.
First, the wg/ bov question. Yes- you need to spend some time learning the whys and hows of boosting an engine. Again, no disrespect but anything you aren't sure about should be discussed(like we are doing now) before you make your plan and start collecting parts.
I also agree with the e85 advice. I don't think it's for you.
I don't agree with getting rid of that engine. It's a sweet piece, and with a bit of changes, will work great.
No way will a t4 based single turbo work for this application. This engine will need the highest exhaust flow available. I would keep the cam thats in it, and select turbos that will keep the pressure ratios as close to 1:1 as you can get.
Efi will give you absolute fuel control over a much wider dynamic range than a carb will be able to control. A blowthru carb on a 700 hp engine will be able to be tuned acceptably, but when you are trying to strech the curve out over almost double the fuel demand, and still maintain nice driveability, I feel the work to get a carb to work anywhere close to efi would be like chasing a rainbow.
I will suggest picking an efi system capable of dis ignition. If driveability AND power are important to you, take into consideration the fact that there are ignition events that are needed to happen from 0 degrees to 50. Try to control and phase a distributor between those ranges. Good luck, that will be one bad mambo-jahambo with a set of hair driers on it. My suggestion about turbos down by the starter was more of an example of what you can get away with with a dry sump. Normally turbos need a gravity feed to a level much above the pan level. You are free to do as you wish with placement.


"use it 'till it breaks, replace as needed"
Re: Turbo Build for the duster info please [Re: cold85] #1299241
09/13/12 02:17 AM
09/13/12 02:17 AM
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust Offline OP
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DemonDust  Offline OP
master

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Menomonee Falls
Quote:

are you building for a class?




No, the car is really not built for any class. I built it and use it at the ice drags, which have few to no rules for modified or time classes. But since going to the strip last fall I'd like to start racing asphalt. Not really sure on what classes I'd even fit into.


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Hellcat Demon and Redeye Supercharger CNC Porting
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