Question on Holley Terminator X Stealth 4150 2X4 EFI

[62_BattleBird]

https://www.summitracing.com/parts/hly-550-1076 Has anybody run this system on their dual quad FE? Forgive my ignorance, but would this be a correct fit (I'm using the Trick Flow Tunnel Wedge 2x4)? I'm seriously considering going the EFI route and really like the sort of "original" look this would give. Any advice would be greatly appreciated.

[TurboChris]

I've ordered it from Summit. It's been a month and the estimated ship date was a couple days ago. Now the estimated shipping date is 7/27. So while I can't offer any help on how well it works, I can tell you order now if you want it because it's gonna be a bit of a wait.

That said my tuner who's been doing this since the 90's has stated the terminator x is THE way to go. He has promised me that I'll be VERY happy with it.

[62_BattleBird]

I've ordered it from Summit. It's been a month and the estimated ship date was a couple days ago. Now the estimated shipping date is 7/27. So while I can't offer any help on how well it works, I can tell you order now if you want it because it's gonna be a bit of a wait.

That said my tuner who's been doing this since the 90's has stated the terminator x is THE way to go. He has promised me that I'll be VERY happy with it.

That’s great to hear! We’ll, not the delay, but you know what I mean lol. So to your knowledge this shouldn’t cause any fit issues? I guess I was worried because I’m still a bit confused on the mounting of the carbs on the FE (that it’s backwards or whatever) and it seemed these wouldn’t fit next to each other longwise (I hope that makes sense). Please forgive my ignorance, but I’m admittedly a newbie and this is my first build. Thanks in advance!

[pbf777]

I've ordered it from Summit. It's been a month and the estimated ship date was a couple days ago. Now the estimated shipping date is 7/27.

     If you had ordered it from us (PBF) you'd saved a couple of bucks (O.K., not much less as there just isn't much margin left  ), but I would have been honest and stated to you that Holley has been moving the "Estimated Ship Date" out 30-days at a time, so we really have no idea of when they actually might ship it; therefore, just give a partial deposit (vs. hitting your card for the full amount!  ) on the order and you'll pay the remainder when we actually do ship it to you.   

     Scott.

[badcatt]

How do you mount those on a 2x4 Ford intake?  Didn't Ford use side hung float bowls on them? Those look to imitate the center hung bowls a nd should be longer.



That might be part of the shipping delay while Holley comes up with a fix.

[JamesonRacing]

I have a single Holley Terminator X Stealth on one of my cars and like it better than the Sniper or Edelbrock setups I have other cars.  I think tunnel-ram style linkage to mount the throttle bodies sideways would need to be well thought out given how sensitive the EFI is to throttle position so the IAC can operate where it should.

[Falcon67]

I've been considering similar, maybe not this specific throttle body setup, but a Holley dual quad EFI.  My Prime Interest would be the ability to run both a gas (110 VP) and a methanol program using the Terminator X.  Anybody know if the T-Rex will support such an effort?

[62_BattleBird]

How do you mount those on a 2x4 Ford intake?  Didn't Ford use side hung float bowls on them? Those look to imitate the center hung bowls a nd should be longer.



That might be part of the shipping delay while Holley comes up with a fix.

This is my exact worry; I hope someone in here can answer before I buy em

[gregb]

I have the single version (not the X, just the stealth) I'm installing on my Mustang, it's pretty much the same size as a standard 4150 Holley with center hung float bowls, no way your fitting two lengthwise on a Ford 2x4 intake, sorry to say.....

[1964Fastback]

Plus, the original 2x4 carbs only had one metering block per carb with the secondary one being a plate.  These have two "blocks" each, plus the cathedral bowls.  Of course, I haven't measured and everything could have been scaled down some.

Pat

[Joe-JDC]

Since you are using a TW intake, it should not be an issue to mount them sideways.  Order a TR linkage kit for SBF/TR or 460Ford/TR from Weiand and you should be able to make it work smoothly.  The air filter housing should still fit for a 2x4 Ford manifold.  Joe-JDC 

[TurboChris]

Since you are using a TW intake, it should not be an issue to mount them sideways.  Order a TR linkage kit for SBF/TR or 460Ford/TR from Weiand and you should be able to make it work smoothly.  The air filter housing should still fit for a 2x4 Ford manifold.  Joe-JDC

Crap! It didn't even occur to me that it might not fit on mine.

[CDXXVII]

Plus, the original 2x4 carbs only had one metering block per carb with the secondary one being a plate.  These have two "blocks" each, plus the cathedral bowls.  Of course, I haven't measured and everything could have been scaled down some.

Pat

I'm way behind the curve on this. Why do we have bowls on an FI unit?

[Joe-JDC]

Your injectors have to be mounted somewhere.  If you don't use an EFI manifold with injector bosses, then the injectors must be in the unit.  Those are inside the units.   Joe-JDC

[JamesonRacing]

Plus, the original 2x4 carbs only had one metering block per carb with the secondary one being a plate.  These have two "blocks" each, plus the cathedral bowls.  Of course, I haven't measured and everything could have been scaled down some.

Pat

I'm way behind the curve on this. Why do we have bowls on an FI unit?

The bowls are simply aesthetic elements to make the unit resemble a Holley carburetor.  They don't hold fuel; but have two fuel injectors on each end hidden inside the "bowl".