Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - NIsaacs

Pages: 1 [2]
16
Member Projects / '74 F-350 Built in '90 to '94
« on: November 23, 2014, 12:02:52 PM »
First I just want to say I am amazed at the build quality of some of your projects on here. The attention to detail, fixing everything back to original or better, the knowledge and ability of you guys are second to none.

My build is a little backwards since it was done years ago. It is also a little different due to the size of the truck and the transplant of the FE to a Cummins. The build quality is not nearly as complete as what I see here but none the less a pretty good rig.

I am computer challenged so bare with me a bit as I try to size pic's to fit and such. A little history. I bought the truck (360/4spd/D70/4.10) in 1977 used from a Ford dealer in Miles City, Montana (well used, ex oil field rig) to help move down here to Arizona. It needed to tow an 8x35 park model trailer, so the first thing I did was cut the frame off at the rear of the rear spring shackles for more hitch support and installed a wood/metal 8x10 bed from Omaha Standard (metro model).

Please feel free to ask questions. More to come. Dang I can't seem to size my pic's right, any ideas?

Nick 

17
FE Technical Forum / WOT 428 power improvment sugjestions?
« on: November 19, 2014, 07:52:17 AM »
I am looking for any small HP tuning tricks that all you FE engine builder/owners might have. Currently running a 1975 F-250 4x4 puller in the 6500 lb stock gas class. I think It was Barry that said it so well in one of the engine build threads. "It don't matter if it idles like crap and stumbles through the pits, if it makes power where it is working is what matters", true story!

I know you guys like details so here is a small rundown of the truck. I think I have the gear ratio, tire size and chassis dialed in. I am running 4.88 gears, 31" tires and a 2.72 low gear kit in the c-6 w/3k stahl. I really don't want to go any slower since speed/momentum is key. The last pull was 16 mph @ 5800 rpm. I would like to get that up to 17/18 mph and 6000/6200 rpm.

Engine started life in a '67 XL 428. I have built it twice over the years (30) and is currently 60 over (440 I think) about 10.5 compression, sorry I really don't have much tech specs on this part. I have a complete RPM top end kit installed, one piece at a time (more work but I wanted to see how it responded) because even thou I am a good mechanic I am not a good hotrod mechanic. My last addition is a Pertronics distributor set for 21* initial 37* total, I have not pulled it yet with this. The old oem duraspark was erratic as heck and I think a major problem. I used my 3k Huges stahl converter as my dyno  :) for this setting.

I was wondering if a 1" spacer might be good for 5 hp would a 2" or even 3" help? I have plenty of room in this truck. Also my headers have the one piece collector that necks down to 2.5". I run them open so would it help to cut the 2.5" off at the 3" size? I am also still running the factory PCV system. Is that an issue? I noticed that most of the dyno tests were done for street or some street/strip use, that won't apply here.

Thank you.

Nick 

Pages: 1 [2]