Northern Tracks Forum

Performance Forums => V8 Engines => Topic started by: Swamp Dawg on January 02, 2007, 10:06:16 pm

Title: 318 Modifications
Post by: Swamp Dawg on January 02, 2007, 10:06:16 pm
For those of you with the standard 318 Industrials in your bombardiers what kind of performance can you squeeze out of them.  Has anybody played with cams or switched to 4 barrel carb?  Any idea what the Hp and Tq ratings this motor has.
Title: Re: 318 Modifications
Post by: Skenman on January 08, 2007, 12:53:39 pm
Yes,
Bought a new Weiand 4bbl mani, ( don't fit, front of thermo housing hits back of water pump.)
mine a 313 industrial dodge poly head engine 1962. )
So Itraded a guy in the USA for a stock 4bbl cast intake and bolted a 650 cfm Edelbrock off road
carb on. had to make new throttle linkage hook ups, water hookups, etc..
Nite and day performance. 35% more fun. not much more gas either !!!!

skenman
1962 wide gauge.

Title: Re: 318 Modifications
Post by: Skenman on January 08, 2007, 01:06:24 pm
I have a spec sheet for 1962
15 passenger wide, 313 v8 = 145hp.
4400lbs, width 78" 4:10 ratio
I have the 4bbl = 30 hps
and headers = 10 hp
electronic ignition..
====  be pushing 185 - 200 hp.
now that is 1962 specs.  don't know what the dyno would say ?

12 passenger narrow 251 6 cyl = 115hp
4200lbs, width 59"  4:10 ratio.
Title: Re: 318 Modifications
Post by: Swamp Dawg on January 16, 2007, 05:35:34 pm
Thanks for that info, sounds like a real track buster!  You left the stock cam in there?
Title: Re: 318 Modifications
Post by: Skenman on January 19, 2007, 07:52:38 pm
Same original cam, i am running an electric fuel pump, and
an aluminum gas tank 104 liter, that i have mounted outside, between the
radiator and snow cover door,, NO MORE VAPOUR LOCKING, or rusty filters.
Title: Re: 318 Modifications
Post by: Swamp Dawg on January 20, 2007, 08:53:20 am
Thats a good idea, I heard that vapour locking is a big problem on these machines.  Do you have any pictures of your bombardier?  I think we would all like to see it.
Title: Re: 318 Modifications
Post by: Skenman on February 09, 2007, 10:59:48 am
yo Swamp Dog.
I'd like to post some pics, and also see other guys and gals machines.
I cannot figure out how,,on this knowledge box, don't want to screw anything up here.

Skenman
62 wide
Title: Re: 318 Modifications
Post by: Skenman on February 09, 2007, 05:56:04 pm
correction Swamp Dawg,, sorry
Title: Re: 318 Modifications
Post by: Swamp Dawg on February 09, 2007, 08:09:42 pm
I set up a post for you with pictures.
Title: Re: 318/313 Modifications
Post by: Snowbusman on March 12, 2009, 11:20:03 am
IND313
Does any one out there have the factory specs for the camshaft on a stock 313. Looking for Lift and duration.
Regards
Bob Sanders
Sault Ste Marie, Ontario
Title: Re: 318 Modifications
Post by: Skenman on March 12, 2009, 08:53:19 pm
I have a bookmarked site for the Poly 318,, we have 313 in Canada apparently.

autos.groups.yahoo.com/groups/318poly/

If that doesnt work , send me ur email and Ill send a link.
Title: Re: 318 Modifications
Post by: Snowbusman on March 13, 2009, 01:06:40 pm
Thanks there Skenman
I finally got the numbers from a rebuilder.
Took a lot of E Mails to finally find the information. Thank heavens for the internet.
Title: Re: 318 Modifications
Post by: Snowbusman on December 10, 2009, 07:52:31 pm
We searched high an low for a new cam amd finally sent the original out for regrind. If any one wants the numbers I can supply them.
If I wasn't such a fan of poly engines, I would have never gone this way.
Oh well it sure been interesting
Title: Re: 318 Modifications
Post by: Vic on March 01, 2010, 04:36:03 pm
We are having trouble with overheating with or c12 with 318 chrysler with auto transmission.  We thought a cowling around fan would help.  Does anyone have experience they can share with us.  We are in Southern Ontario near kitchener.  It was 2 degrees with heavy but not deep snow.   The cab was very warm.  Is there any way to control the heat or is it strictly a funtion of the motor heta level?
Title: Re: 318 Modifications
Post by: kpm on March 01, 2010, 05:08:17 pm
a cowling helps,and a six blade fan...and be sure to put a new thermosat...they can get nice and toasty inside when there working a bit,hard to control the heat..open a window or the hatch..
                                                                       kpm
Title: Re: 318 Modifications
Post by: kpm on August 03, 2010, 09:31:56 am
I know where there is one,with the dual pulley alt set up too.
   email me at
                                          maplelane12000@yahoo,ca
 
Title: Re: 318 Modifications
Post by: FORD F-150 on June 03, 2019, 11:03:21 am
One thing that is often overlooked is the timing of the distributor, when it is too advanced, you will find it lacks in throttle response and tend to overheat very often. Once timed right the throttle response will improve and you will notice the overheat would be somewhat solved. If you still overheat then it would be a cooling problem. Hope this helps you and others just for information.