Budget pulling truck engine named (Tommy Boy)

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Mon Feb 27, 2017 9:40 pm

I will try to graph this for you tomorrow. Thanks, Charlie

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Mon Feb 27, 2017 10:31 pm

0209172049_HDR.jpg
In order for the graph to be accurate I will need flow in these increments and sizes of intake opening and exhaust opening as well as throat diameters. Take a look at this sheet for input info. Thanks, Charlie
You do not have the required permissions to view the files attached to this post.

randy331
Guru
Guru
Posts: 2536
Joined: Mon Dec 04, 2006 7:30 pm
Location: N.W. MO.

Re: Budget pulling truck engine named (Tommy Boy)

Post by randy331 » Tue Feb 28, 2017 1:10 am

Got no flowZ below .200"

Very seldom flow anything down there.

Randy

MaxFlow
Expert
Expert
Posts: 800
Joined: Mon Jan 08, 2007 9:47 pm
Location: WV

Re: Budget pulling truck engine named (Tommy Boy)

Post by MaxFlow » Tue Feb 28, 2017 9:03 am

Looks like a decent set of iron to me. What chamber size are they at?
Joe Stalnaker
WV

Rick360
Expert
Expert
Posts: 888
Joined: Sun Oct 03, 2004 9:55 pm
Location: Missouri

Re: Budget pulling truck engine named (Tommy Boy)

Post by Rick360 » Tue Feb 28, 2017 5:10 pm

randy331 wrote:
Carnut1 wrote:
randy331 wrote:What would knowing the port energy tell me ?

Randy
Even if you just use it for comparison to your next project you have a baseline of port energy vs. Performance. If your next set of heads have more port energy and perform better you know you are on the right track. Just another tool, more info the better. I would be glad to do it for you but you will owe me a beer when you visit. Thanks, Charlie
FlowZ for the 034 Bowtie's on Tommy Boy.

205cc and 5.45" port length.

.200--142
.300--197
.400--242
.500--264
.600--274
.700--276

Randy
Port Energy = 22.74 at .700" lift :lol:

Rick

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Tue Feb 28, 2017 8:10 pm

Rick360 wrote:[quote="randy331"
randy331 wrote:What would knowing the port energy tell me ?

Randy
Even if you just use it for comparison to your next project you have a baseline of port energy vs. Performance. If your next set of heads have more port energy and perform better you know you are on the right track. Just another tool, more info the better. I would be glad to do it for you but you will owe me a beer when you visit. Thanks, Charlie
FlowZ for the 034 Bowtie's on Tommy Boy.

205cc and 5.45" port length.

.200--142
.300--197
.400--242
.500--264
.600--274
.700--276

Randy[/quote]
Port Energy = 22.74 at .700" lift :lol:

Rick[/quote]Not bad Rick, 22.9 at .7" lift.

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Tue Feb 28, 2017 8:14 pm

0228171956.jpg
Test #1 my ported Dart pre platinums 248cc 2.08 valve flows. I picked this head because I did get some flak that I totally screwed these by making them too big, plus the bowties will get dynoed and hopefully the results get shared and I can get an idea what I can do with these darts. Thanks, Charlie
You do not have the required permissions to view the files attached to this post.

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Tue Feb 28, 2017 8:17 pm

1488330222250.temp.jpg
Bowties, I did need to estimate some measurements and flows but I think I am pretty close to a decently ported bowtie head. If we have any big disagreements I can rerun the program. Thanks, Charlie
You do not have the required permissions to view the files attached to this post.

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Tue Feb 28, 2017 8:18 pm

1488330261935.temp.jpg
Ported Dart vs. Ported Bowtie. Very interesting.
You do not have the required permissions to view the files attached to this post.

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Tue Feb 28, 2017 8:22 pm

1488330296249.temp.jpg
Port velocity and port energy Ported Dart vs. Ported Bowties. I have run Bowties and they run well if ported. I am looking forward to some of Randy's magic on this mill. Thanks, Charlie
You do not have the required permissions to view the files attached to this post.

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Wed Mar 01, 2017 7:08 pm

Not even a comment? I wish the wife would give me the silent treatment. No such luck. Thanks, Charlie

randy331
Guru
Guru
Posts: 2536
Joined: Mon Dec 04, 2006 7:30 pm
Location: N.W. MO.

Re: Budget pulling truck engine named (Tommy Boy)

Post by randy331 » Wed Mar 01, 2017 8:11 pm

Carnut1 wrote:Not even a comment?
Been getting ready to head to the dyno.

As far as magic, I didn't grind on the these heads, so any magic can't be credited to me.
But the car Tommy Boy was in ran well, so I expect it to do well on the dyno.

As far as port energy/flow curves go. I don't think these Bowties will flow what your bigger valve does down at .050"and .100", but I didn't flow them there so I'm basing that on past differences on valve sizes.

It's always an interesting day/days when we go to the dyno.

As for your wife, stay off st and take her to the beach one day ! :lol:

Randy

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Wed Mar 01, 2017 8:34 pm

Have fun and we expect a full report!

randy331
Guru
Guru
Posts: 2536
Joined: Mon Dec 04, 2006 7:30 pm
Location: N.W. MO.

Re: Budget pulling truck engine named (Tommy Boy)

Post by randy331 » Wed Mar 01, 2017 9:28 pm

Carnut1 wrote: we expect a full report!
PM your phone number if you wish to be on the list to receive periodic up dates through out the session via text.

Randy

Carnut1
Guru
Guru
Posts: 3213
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: Budget pulling truck engine named (Tommy Boy)

Post by Carnut1 » Wed Mar 01, 2017 10:01 pm

Pm sent

Post Reply