| Slant Six Forum https://www.slantsix.org/forum/ |
|
| 2 Barrel Carb conversion... https://www.slantsix.org/forum/viewtopic.php?t=56111 |
Page 1 of 1 |
| Author: | dodgedarren [ Wed Sep 03, 2014 2:03 pm ] |
| Post subject: | 2 Barrel Carb conversion... |
I have 225 slant six currently with a single Carb set-up. I bought a complete 2 barrel conversion recently and have a few questions. 1. Is it worth doing the conversion. Will I notice a power difference and will it dramatically affect gas milage? 2. Can I use my existing linkage and throttle cable? Any input would be appreciated. |
|
| Author: | Grinch62 [ Wed Sep 03, 2014 10:22 pm ] |
| Post subject: | do it |
Should feel the difference. I believe you can use the existing parts. one thing you may want to keep in mind that the true restriction in a slant six is the exhaust. Think seriously of getting a set of headers or dutra duals. Getting the exhaust out is as important as getting the fuel in. |
|
| Author: | /6 Matt [ Wed Sep 03, 2014 10:37 pm ] |
| Post subject: | |
Actually youll need to use a different throttle cable if the setup didnt come with one. A cable from a v8 car will work. Youll need the two barrel kickdown linkage or go with a lokar cable or a bouchillon cable. Lastly the head is the worst offender to flow, not the exhaust. Go 2-1/4" on the exhaust and call it a day. I did a 2bbl swap several month ago and I wish I did it years ago. The dart runs like its gota stock 318 now and Iim still running the stock 1-7/8" exhaust. Btw, expect mileage to stay the same or improve. |
|
| Author: | dodgedarren [ Thu Sep 04, 2014 10:34 am ] |
| Post subject: | Good to know |
I shaved the block and head to raised the compression and went .30 over bore so she should really move out with the 2 barrel bolted on. I already have 2.25 exhaust but was debating on putting a more aggressive muffler but I have read horror storied about "drown" when your at cruising speeds. Any thought on a muffler?? |
|
| Author: | dodgedarren [ Thu Sep 04, 2014 12:10 pm ] |
| Post subject: | Re: Good to know |
Quote: I shaved the block and head to raised the compression and went .30 over bore so she should really move out with the 2 barrel bolted on. I already have 2.25 exhaust but was debating on putting a more aggressive muffler but I have read horror storied about "drown" when your at cruising speeds.
Matt, did you have to swap the distributor???
Any thought on a muffler?? |
|
| Author: | dodgedarren [ Thu Sep 04, 2014 12:10 pm ] |
| Post subject: | Re: Good to know |
Quote: I shaved the block and head to raised the compression and went .30 over bore so she should really move out with the 2 barrel bolted on. I already have 2.25 exhaust but was debating on putting a more aggressive muffler but I have read horror storied about "drown" when your at cruising speeds.
Matt, did you have to swap the distributor???
Any thought on a muffler?? |
|
| Author: | /6 Matt [ Fri Sep 05, 2014 7:23 am ] |
| Post subject: | |
What vehicle is your slant in Darren? |
|
| Author: | Reed [ Fri Sep 05, 2014 8:02 am ] |
| Post subject: | |
Have you read the Super Six article yet? It is here: http://www.slantsix.org/articles/supersix/article.htm Short answers: (1) Possibly. Many variables here. Most people have nothing but good to say about the conversion, but you need to be sure to get a good condition carburetor. (2) Depends on the vehicle being worked on. |
|
| Author: | WagonsRcool [ Fri Sep 05, 2014 10:34 am ] |
| Post subject: | |
Quote: Any thought on a muffler??
It depends on what muffler you already have. For years many generic replacement units were restrictive by design in order to keep the sound levels down. A 2-1/4" unit would neck down to 1-3/4" or less inside the inlet pipe. Walker's Super Turbo line seems to offer a good balance of flow, sound, & cost. The resonance/drone problems seem to occur more often with "hi-perf" straight-thru muffler designs, & only at specific rpm-load points. I had that happen & was able to "tune" it down some by adding a glasspack to the tailpipe.Ideally, you'd tap a small hole in the head pipe & connect it to a low pressure gauge (such as a vac-fuel press gauge), then go for a drive. If you have under 2 psi backpressure upstream of the muffler under all conditions (incl WOT) then you don't need to change anything. |
|
| Page 1 of 1 | All times are UTC-07:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|