Speed-Talk is running on www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 7 matches

by mn77spl
Thu Oct 14, 2021 4:59 pm
Forum: Engine Tech
Topic: Unique Engine – More Power Needed
Replies: 26
Views: 1657

Re: Unique Engine – More Power Needed

I sprung for PipeMax 4.70 in order to help me look at some of the ideas suggested. I have some questions: - What valve or cam lift are the timing recommendations referenced to? - What engine configuration is assumed for the estimated power & torque outputs, "Race Engine • Mid-Range Peak TQ • Hi RPM ...
by mn77spl
Wed Oct 13, 2021 3:17 pm
Forum: Engine Tech
Topic: Reverse Acceleration on Engine Dyno
Replies: 5
Views: 656

Re: Reverse Acceleration on Engine Dyno

Turbocharged diesel pulling tractor engines need to be tested by pulling down from the top in order to get the turbo spooled.
by mn77spl
Wed Oct 13, 2021 12:50 pm
Forum: David Vizard forum
Topic: Cam Master
Replies: 8
Views: 1357

Re: Cam Master

Stan, I have looked at the Cam Master program is hopes of getting insight into cam timing needs for my "Unique" 6cyl engine I use for tractor pulling. In any case I have some comments: - Referencing the output that shows after running a calculation on the input page - I assume the intake centerline ...
by mn77spl
Tue Oct 12, 2021 5:47 pm
Forum: Engine Tech
Topic: Unique Engine – More Power Needed
Replies: 26
Views: 1657

Re: Unique Engine – More Power Needed

I want to thank everyone with there feedback so far, in particular 'maxracesoftware' for all the time spent modeling. (BLSTIC I hope to see your analysis also.) A couple of comments on what has been provided to date: - Original valve size was 1.625 Int & 1.516 exhaust. Getting the port sizes up to w...
by mn77spl
Mon Oct 11, 2021 1:20 pm
Forum: Engine Tech
Topic: Unique Engine – More Power Needed
Replies: 26
Views: 1657

Re: Unique Engine – More Power Needed

Carbureted only.
by mn77spl
Mon Oct 11, 2021 11:29 am
Forum: Engine Tech
Topic: Unique Engine – More Power Needed
Replies: 26
Views: 1657

Re: Unique Engine – More Power Needed

Inlet tract specifications:
- Inlet to flange 10.750"
- Inlet to valve 16.250"
- Dia at inlet 2.187"
- Dia at flange 1.870"
by mn77spl
Sun Oct 10, 2021 8:09 pm
Forum: Engine Tech
Topic: Unique Engine – More Power Needed
Replies: 26
Views: 1657

Unique Engine – More Power Needed

I have a 6 cylinder Oliver tractor engine (Waukesha) that I use for tractor pulling. The engine was originally a 283 CID diesel rated for 67 hp @ 2200 rpm. The engine has been converted to spark ignition, bored & stroked, ported w/increased valve sizes, roller camed, and fitted with a sheet metal in...