Search found 40 matches
- Mon Aug 24, 2020 8:02 am
- Forum: Chassis / Suspension / Body
- Topic: Slip Tube Hardtail Dragster Tuning
- Replies: 1
- Views: 1428
Slip Tube Hardtail Dragster Tuning
Hello everyone, I just bought a slip tube 93 Box Chassis dragster. This is our first dragster and I'm wondering what my options are as far as chassis tuning goes. Is weight distribution how you tune for more or less traction beyond the ignition system and tire pressure? The dragster has yet to go do...
- Mon Aug 24, 2020 7:58 am
- Forum: Engine Tech
- Topic: Throttle Body quality and design questions
- Replies: 1
- Views: 326
Throttle Body quality and design questions
I'm looking at using circular throttle bodies in a vertical position for a sheet metal tunnel ram type intake manifold. For a visual, I'm thinking it will look similar to a 2x4 Rons Flying toilet mfi system. Instead of putting the injectors in the runner, I'm thinking of placing the injectors direct...
- Thu Jun 18, 2020 8:46 am
- Forum: Engine Tech
- Topic: Top Guided Piston Pin Spacers? Who makes them?
- Replies: 20
- Views: 2145
Re: Top Guided Piston Pin Spacers? Who makes them?
Thanks for the replies
- Wed Jun 17, 2020 3:20 pm
- Forum: Engine Tech
- Topic: Top Guided Piston Pin Spacers? Who makes them?
- Replies: 20
- Views: 2145
Top Guided Piston Pin Spacers? Who makes them?
Hello everyone, I'd like to know who to talk to get some top guided piston pin spacers. Who makes these? I'd like to get some quotes for my engine build. Thanks!
- Sun May 31, 2020 9:15 pm
- Forum: Engine Tech
- Topic: Used Nascar Keyway lifters? Good or Bad Purchase
- Replies: 3
- Views: 718
Used Nascar Keyway lifters? Good or Bad Purchase
I know there was a thread sometime ago about Nascar takeoffs but I'm curious of people's experience in buying used Nascar Keyway lifters. Is this a dangerous purchase to make or are they worth buying from some of the more reputable resellers. Just curious if there is any value that can be had here. ...
- Sun May 24, 2020 10:43 pm
- Forum: Chassis / Suspension / Body
- Topic: Can altereds/dragsters sfi spec be upgraded easily?
- Replies: 3
- Views: 1143
Can altereds/dragsters sfi spec be upgraded easily?
Guys, I'm not sure that this is the best place to put this question but I figured that more people in the Top Sportsman and Top Dragster forum would be knowledgeable on this. I have plans to purchase a dragster or an altered. I had an opportunity to purchase an altered with a sfi 10.3 cert which is ...
- Sun Dec 06, 2015 9:49 am
- Forum: Engine Tech
- Topic: CD/Crane/Chet Herbert Camshaft Identification
- Replies: 2
- Views: 1759
CD/Crane/Chet Herbert Camshaft Identification
I've got an old camshaft of which I'm trying to the specifications to. From what I've read, it seems to be a Crane Cam Core with a Chet Herbert grind but in searching there were two cams with two different specs that used the 689356 number so I'm trying to verify the cam information. Please, can som...
- Fri Jul 05, 2013 4:18 pm
- Forum: Engine Tech
- Topic: Distributor Timing Curves?
- Replies: 4
- Views: 807
Distributor Timing Curves?
We have a bracket racing motor and are looking to play with the distributor timing curves but I'm not really sure on what curve to start with(spring, bushings combination). Motors Specs: MSD Ignition MSD Pro Billet Distributor 383-400 Naturally Aspirated 497ci BB Mopar, full roller, 12.5:1 comp, 650...
- Mon Feb 25, 2013 12:25 pm
- Forum: Engine Tech
- Topic: Head bolts in intake ports: Is it a restriction?
- Replies: 9
- Views: 1182
Head bolts in intake ports: Is it a restriction?
Question, I know that SB2 engines have the headbolt in the intake port and that some utilize threaded plugs to go over studs in the port but I was wondering if there is any restriction in the port by having the head bolt in the port. I'm aware that most of the air velocity will be centralized in the...
- Mon Dec 19, 2011 2:42 pm
- Forum: Engine Tech
- Topic: Pressure Differential of flowbench test?
- Replies: 4
- Views: 855
Re: Pressure Differential of flowbench test?
Thanks Rick, its much appreciated!
- Mon Dec 19, 2011 12:58 pm
- Forum: Engine Tech
- Topic: Pressure Differential of flowbench test?
- Replies: 4
- Views: 855
Re: Pressure Differential of flowbench test?
I don't know if I mis-explained but to answer your question: This is what I assume is the pressure at the port entry which is standard pressure: 29.92in Hg is equivalent to 406.8in H20 This is what I assume the test pressure is in the bore fixture: 28in H20 is equivalent to 2.0599in Hg In psi is rou...
- Mon Dec 19, 2011 11:24 am
- Forum: Engine Tech
- Topic: Pressure Differential of flowbench test?
- Replies: 4
- Views: 855
Pressure Differential of flowbench test?
I have a question about the test pressures of flowbench testing. Its my understanding the that the pressure differential is caused by creating a vacuum at a test pressure of 28in H20 underneath the port in the cylinder bore fixture and at the entry, it would be somewhere near standard pressure 29.92...
- Wed Dec 07, 2011 8:28 am
- Forum: Engine Tech
- Topic: What are typical roller rocker arm widths?
- Replies: 0
- Views: 371
What are typical roller rocker arm widths?
Looking for rocker arm widths in shaft mount and stud mount applications in high horsepower Naturally aspirated applications(i.e. Super Stock Hemi engines, Comp Eliminator Engines, Pro Stock engines). I'm curious as to how the technology have developed and just how small things are getting to lighte...
- Thu Oct 20, 2011 7:52 pm
- Forum: Engine Tech
- Topic: Formula to estimate intake flow for estimated hp
- Replies: 8
- Views: 1683
Re: Formula to estimate intake flow for estimated hp
I am mainly curious about the relationship between intake flow in relation to HP potential. But lets just say for now that the engine is a 4.50 bore, 3.38 stroke, 6.76 rod, 1160HP, 14:1 or higher compression.
- Thu Oct 20, 2011 11:08 am
- Forum: Engine Tech
- Topic: Formula to estimate intake flow for estimated hp
- Replies: 8
- Views: 1683
Formula to estimate intake flow for estimated hp
First, I know that flow numbers aren't everything and that there probably is not an extremely accurate formula to estimate this but I would like to know if there is a formula that can relate and estimate required intake cfm for power output using a certain bore,stroke, and rpm. I would assume that y...