Timmy66":qt9nfaw3 said:
I am planing on running a Holley 2300 super sniper EFI system on the car I was wanting to know if I am going it the right direction if there are any suggestions or concerns and with all of these changes if anyone has a good idea of what boost could be run
You can only use the 4 bbl EFi..The Holley 2300 doesnt support a turbo.So you need a 4 bbl to 2 bbl adaptor to fit it.
Americans only think V8s, so all the USA adaptors arent spaced correctly for a direct mount and dont/ wont work.
See this link, its the 42 nd Redline Adaptor and other, the 53 rd adaptor down, from Hume Perfornance in Australia.
http://au.gotfreeshipping.com/store/hol ... ptor-plate
You have to get this free delivery 302 Cleveland 4v to 2v Carter Thermoquad to 350 Holley 2bbl adaptor and mount it upside down on your direct mount 2bbl modification. Then a 4bbl Square bore adaptor has to be added to convert it back to something the Holley EFi can use.
Two adaptors 89.95 + 69.95 and a direct mount modification, and the head has to be a later C9 big log head. Some of the 170 Mavericks had big log small chamber 52 cc heads, Ak Millers special pick of all early heads. Or any later nominal 60 to 62 cc big log head, with the integrated EGR E0 1980 to 1983 3.3 liter heads the best. Big log, big chamber, good sized valves, and bulletproof. They flow less than the best modified 170 Maverick and Comete heads from 1970 to 1971.
See the $89.95 adaptor at
https://rover.ebay.com/rover/1/705-5347 ... 2977205839
See the $69.95 adaptor at
https://rover.ebay.com/rover/1/705-5347 ... 3647098190
No concerns with that 4bbl system, but throttle body EFis are always a poor choice for any single 1 bbl intake head, despite both Power Nation and Richard Holdeners tests with adaptors for in line 292s.
Direct mounting the carb with a newly machined hole of larger dimensions is a mandatory first step, then add a 4bbl to 2bbl adaptor.
Again, Powernations recent 292 Chevy Turbo episode with Pat T and Mike G show how far things have improved with this Sniper system.
An intercooler might fit if you want some more assurance that 15 psi isnt going to kill something.
https://youtu.be/WfyofaN0j3g
Basic before turbo build is
https://youtu.be/hXp5dnAEjNU
The 292 is a non cross flow six. Its inlet and exhaust is on the drivers side. Here, the turbo guys did a Ford Mustang carb turbo and split the turbo from close to the header to a point on the opposite side.
No one ever made throttle body injection turbos, so Holleys Sniper is new territory. On a log head six, direct mount the carb. The single 2.2 sq inch hole has to become a 5.4 square inch 2 bbl Holley 500 cfm base. Push the magnifying glass Search icon, select user xctasy and partial match crosley Holley 500.
search.php?keywords=4412+Holley&terms=all&author=crosley&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
My posts on it have pictures.
search.php?keywords=crosley&terms=all&author=xctasy+&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
His 1978 Fairmont headed Futura direct mount Holley 2bbl does low 15s and makes his 62 about 205 flywheel horsepower by my calcs.
Turbo has to go on the other side in my opinion, because the exhaust on the short deck 200 log head is very cramped and downturned and conjested with a starter motor, spring tower, and the battery and alternator making fabrication harder than just a j tube and a battery or alterntor relocation. If the turbo supply line is off a conventional refurbushed 2-1/4 inch outlet header tube, you can feed it through the back of the sump center hump, forward of the drag link,and that van be as easy as a 3" pipe welded into or onto the sump. Then exhaust and intake are kept apart, so heat soak from the turbo isnt such an issue.