Anyone running a cable throttle body on a 5.7?

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70chall440

70chall440

Mopar or No Car...
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I just ordered a new 5.7 crate motor and am wanting to run a cable TB.
 
CichliDart said:
What are your plans for ignition and fuel system?
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Currently I am planning on using a Holley system for ignition/control. As for fuel, I assume you mean the system (tank, pump, etc.) for that I will probably use a Tanks Inc. system or maybe a Holley system. I will make all my own likes (have already done this a number of times).
 
The adapter is 92mm, did not see any larger or smaller when I was doing mine, so just went with the 92mm TB. Quick and easy. I did see where FAST had a TB which did not need the adapter, but it was pricey.
 
Thanks. There are a number of them on the market but as you note, they are spendy.
 
i run 90mm acufab on my twin turbo 411 g3 hemi. its a real healthy engine on its own. there isnt a noticable increase from 90mm to 110mm tb.
 
I am going to put in a new comp cam or possibly a 392 cam, but other than that I don't intend to modify it more than that.
 
Well... its really worth 65 HP, the 100 HP is based on peak to peak numbers which really isn't a useful number, however it does make a real 65 HP increase over stock. They are not cheap, $445 for a cam is a little spendy but it is what it is.
 
70chall440 said:
Well... its really worth 65 HP, the 100 HP is based on peak to peak numbers which really isn't a useful number, however it does make a real 65 HP increase over stock. They are not cheap, $445 for a cam is a little spendy but it is what it is.
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"65hp" is actually a "Peak to Peak" Hp. It is the difference between Peak Stock hp to HRT Peak hp

+100hp rating is the difference in Hp of both cams at a specific RPM. For the Stage1 non-VVT its ~6300rpm and 6000rpm for the 5.7l Eagle. It used to highlight how bad the stock cam chokes at higher RPM, which is very useful info to most everyone.

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Absolutely true, however if a 5.7 is producing 383 HP bone stock, the addition of the cam does not make it 483 and reading the headlines of the article about the cam implies that. I agree that the 100HP is a useful number if analyzing cams, just that it comes off as a little misleading. Either way, it is a huge increase and something I am probably going to put into my new 5.7.
 
I have the BBK-1792 on my 6.1. No adapter plate needed and the cable hook up is on the correct side for my setup
 
Does a cable operated TB require aftermarket EFI controls? Or can the OEM setup be configured to work?
 
I am not sure but there has to be a TBS so that side should be the same.
 
I’m in the middle of the swap so it’s not connected. I test ran it on a stand. I drilled and tapped the shaft and added the external TPS potentiometer.

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Thats pretty cool. Do you have any pictures of it on the engine? Where did you get the TPS?
 
I used a 5K potentiometer and attached it to the middle gear. Thinking about using the original actuator for cruise control in the future. I’ll see if I have a picture from my testing.
 
70chall440 said:
Currently I am planning on using a Holley system for ignition/control. As for fuel, I assume you mean the system (tank, pump, etc.) for that I will probably use a Tanks Inc. system or maybe a Holley system. I will make all my own likes (have already done this a number of times).
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Isnt the new terminator stuff DBW capable now?
 
Cazbah362 said:
440 - yes, I am using an Ebay throttle body and a car 5.7 intake. EFISource has the adapters for this conversion.

Gen 3 Hemi throttle body adapter - EFI Source

92mm Throttle body + TPS IAC Throttle Position Sensor For LSX LS LS1 LS2 LS7 | eBay
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Did you have any issues getting 100% throttle position using a stock throttle pedal? I'm also using an Ebay 92mm throttle body but only getting around 75% open, trying to figure out how to increase my cable travel without having to extend my pedal to get more throw. I'll extend the pedal if I have to, just trying to find an alternative before doing that.
 
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