Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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Gswest236
Scott West
Seabeck, Washington
(28 posts)

Registered:
07/14/2021 09:13PM

Main British Car:
1974.5 MGBGT V8 Olds 215 Stroked to 266

Anyone using Holley Sniper FI?
Posted by: Gswest236
Date: August 31, 2021 08:58PM

Iím new here, but not new to MG and Austin Healey. My ďnew to meĒ GT V8 is begging for a better fuel delivery system (vapor lock/fuel percolation) not to mention gas fumes in the cab. Itís a Buick 215 with a stroker kit, 266ci. Iíve looked online and know about the Hotwire Rover system, but donít see them used for sale in my searches. The other options Iíve looked at are the Holley, Fitech and Edelbrock. The Edelbrock system looks to be best overall but Iím not sure they have a manifold that would work. Iíve got a stock Buick 4 barrel manifold running a Edelbrock 500 CFM carb. The Holley and FITech are a bolt on your own manifold setup which is cheaper of course.
If anyone has any experience with any compatible FI system, Iíd like to get the input.
Scott


MGBV8
Carl Floyd
Kingsport, TN
(4327 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Anyone using Holley Sniper FI?
Posted by: MGBV8
Date: September 01, 2021 09:23AM

Jeff used to be a FiTech fan. Seems he has been won over by the Holley Sniper.

[www.mgexp.com]


88v8
Ivor Duarte
Gloucestershire UK
(1001 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: Anyone using Holley Sniper FI?
Posted by: 88v8
Date: September 02, 2021 04:42AM

Well that whole thread is hardly a glowing endorsement for efi.

I'm running an Edelbrock 500 on my 3.5 RV8, and 2bbl Holley on my Rambler.

New fuel hoses - I believe Gates Barricade is the cat's pyjamas - so no fuel smells, the hoses are routed away from heat or wrapped, and the carbs have heat spacers.
With E5, I have no problems.

I also had new fuel hose put in our thirty yo shopping trolley.

They just introduced E10 over here. Apparently a quarter of car owners knew nothing about it... only been in the media for months.... but then a quarter of car owners probably have no idea how their cars work, nor care.
Can still get E5 in larger garages at a premium price, less available out in the sticks.

When I read threads about efi, it always seems to be the same, it's fine for the chaps who can diagnose and modify, not so good for anyone who doesn't want to get into electronics.

There was another thread about this recently [forum.britishv8.org]

Ivor


ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1160 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: Anyone using Holley Sniper FI?
Posted by: ex-tyke
Date: September 02, 2021 07:48AM

Installed a Fitech G0 Street 400hp a couple of years ago
Finally started to play around with the fuel map and optimizing A/F ratios to dial it in to my liking- it's been running fine this summer!
FITech 1.jpg


MGBV8
Carl Floyd
Kingsport, TN
(4327 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Anyone using Holley Sniper FI?
Posted by: MGBV8
Date: September 02, 2021 09:38AM

I'm still a carb man, as well, Ivor.


Spitfire 350
Phil McConnell
Perrysburg, OH (Toledo area)
(248 posts)

Registered:
01/11/2010 09:19PM

Main British Car:
74 Spitfire 350Chevy

authors avatar
Re: Anyone using Holley Sniper FI?
Posted by: Spitfire 350
Date: September 02, 2021 12:30PM

If you guys running fuel injection are happy with it, I'm happy for you. I ran a PowerJection III, for several years. (I know today's units are more sophisticated and work better.) It never ran as well as I thought it should have. I was continuously hooking up my computer to try to tune out the issues. Finally, the ECM ceased to work at all. It went into some kind of limp home mode and would not respond to the laptop at all. However, it does look really cool hanging on the wall next to my dead MSD Digital E-Curve Distributor. I now run an HEI distributor and an Edelbrock 750. The engine has never run better and I am much happier.
wall.jpeg


Anarchy99
Jim Purdy
Memphis, TN
(156 posts)

Registered:
12/06/2013 03:54PM

Main British Car:
61 austin healey sprite LS6

Re: Anyone using Holley Sniper FI?
Posted by: Anarchy99
Date: September 15, 2021 10:11PM

I'm putting a sniper efi on the sprite. Have experience with them and they are well thought out and friendly in my experience with them on friends and other project cars.



roverman
Art Gertz
Winchester, CA.
(3178 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Anyone using Holley Sniper FI?
Posted by: roverman
Date: September 16, 2021 11:33AM

I have an older "Fast Fuel" 4 bbl. efi. Anyone with personal experience with these ?
Thanks, Art.


tr8todd
Todd Kishbach

(388 posts)

Registered:
12/04/2009 07:42AM

Main British Car:


Re: Anyone using Holley Sniper FI?
Posted by: tr8todd
Date: September 29, 2021 08:50AM

Art, my buddy has been running the FAST system for about 10 years now. He is making 327hp at the rear wheels out of his 4.9L stroker rover. It has big valve Buick 300 heads, and about $10K in engine work. It idles well, does not stink of fuel, and makes the same peak hp as his previously very well sorted carb did. It makes about 10hp more consistently every where else. He drives it to work during the summer. It behaves that well even making that huge hp number. The FAST system has had some teething pains over the years. He has done a couple of cam changes, and it had to relearn. One time the program just disappeared on him and it had to be reprogrammed. He has been talking about doing a Sniper system next. Block is currently getting top hat liners and is disassembled. He is one of those guys that throws several thousand dollars at his car every year, but in his defense, he drives it a lot. I just picked up a slightly used Fitech 600 system that was running on a lightly modified 3.5L. I plan on using it on a 4.6 along with the Fitech fuel command center I picked up previously. The FCS was new in box, but left over from a neighbors drag car project. Between the two systems, I'm into it for around $450. Ideally I would like the 400 system, but when you bottom feed, you take what you can get.


roverman
Art Gertz
Winchester, CA.
(3178 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Anyone using Holley Sniper FI?
Posted by: roverman
Date: November 23, 2021 05:45PM

I'm seriously considering the FI Tech, 400hp. TBI system,(E85 compatible). I wish to use E85 exclusively,( air/liquid cooled motor).
Local warehouse sells them, $869. complete system .
Thoughts please ? Thanks, Art.


Blown v8
Bryan Phipps

(70 posts)

Registered:
03/10/2013 04:52PM

Main British Car:


Re: Anyone using Holley Sniper FI?
Posted by: Blown v8
Date: November 25, 2021 02:30PM

0C8C9566-417A-437A-A39D-D667438F72AB.png

I went a different route,8 injectors in the hat,(JoBlo) 8 injectors in the manifold, 8 coil packs,water/meth, all run by FuelTech 550
Itís been a nightmare to tune,but getting there, the throttle response is absolutely amazing,
I donít post much, but I do check in every day,and Iíve learnt so much from here
THANK YOU


MGBV8
Carl Floyd
Kingsport, TN
(4327 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Anyone using Holley Sniper FI?
Posted by: MGBV8
Date: November 26, 2021 11:29AM

Look awesome, Bryan. Any sound clips?


Blown v8
Bryan Phipps

(70 posts)

Registered:
03/10/2013 04:52PM

Main British Car:


Re: Anyone using Holley Sniper FI?
Posted by: Blown v8
Date: November 27, 2021 12:15PM

Sorry no sound clipsÖ..yet
I snapped a blower belt, (1/2Ē pitch by 2ĒĒ wide) so in the process of converting it to 14mm pitch, (50mm wide)
The 14mm belts are a lot stronger, I donít want to go to 3Ē wide belts, but if I have to I will,, it just means a fair bit of fabrication


roverman
Art Gertz
Winchester, CA.
(3178 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Anyone using Holley Sniper FI?
Posted by: roverman
Date: November 30, 2021 07:45PM

Hi Bryan, looks like an sbc and a 671 ?


Blown v8
Bryan Phipps

(70 posts)

Registered:
03/10/2013 04:52PM

Main British Car:


Re: Anyone using Holley Sniper FI?
Posted by: Blown v8
Date: December 01, 2021 11:50AM

Big bore 6:71, and my good oleí tried and tested 5.0L Rover



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