Pro stock tech
#2477259
04/04/18 09:32 AM
04/04/18 09:32 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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I wanted to start this so I can show Mopar what a mistake they are making. They think nobody likes pro stock. I know that is not true. I see so many Mopar pro stock fans at every race thanking me for sticking with it. So I will answer any questions you got on the engine,trans, clutch & setup.
Last edited by Alan Prusiensky; 04/04/18 09:34 AM.
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Re: Pro stock tech
[Re: Alan Prusiensky]
#2477267
04/04/18 09:54 AM
04/04/18 09:54 AM
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Joined: Nov 2011
Posts: 287 PA
Harry's Taxi 2
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Could you post as many revealing engine pictures that wouldn't give up too many secrets? Most of us here don't get to see much from that level of racing.
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: Pro stock tech
[Re: Harry's Taxi 2]
#2477274
04/04/18 10:03 AM
04/04/18 10:03 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Could you post as many revealing engine pictures that wouldn't give up too many secrets? Most of us here don't get to see much from that level of racing. pictures probably not but any questions you have I will do my best to answer.
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Re: Pro stock tech
[Re: gregsdart]
#2477277
04/04/18 10:06 AM
04/04/18 10:06 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Could you post as many revealing engine pictures that wouldn't give up too many secrets? Most of us here don't get to see much from that level of racing. pictures probably not but any questions you have I will do my best to answer. Alan, can you give us some details on cam and valve train? As a WAG i would assume rocker ratios are very high, (1.9? 2.0?) lift is 1.1 plus, duration is somewhat shorter than we think? my rockers that I have run the best are 1.85 I'm working on some 1.925 and 1.95 lobes it does look promising but nothing that I'm ready to race with. 278 intake seems to be the best right now for me.
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Re: Pro stock tech
[Re: 340Cuda]
#2477308
04/04/18 11:26 AM
04/04/18 11:26 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Alan,
Thanks for taking the time to post.
I am guessing rear end gears are changed often depending on weather and track conditions but what would be a typical range of rear gear ratios?
Very much different for Denver?
Thanks, Bill most of the time we run a 5.43. this week in Vegas a 5.50. in mine shaft air a 5.38. trans gear we change more often.
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Re: Pro stock tech
[Re: justinp61]
#2477309
04/04/18 11:27 AM
04/04/18 11:27 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Alan, if NHRA allowed carbs or fuel injection would you go back to carbs?
Thanks, Justin fuel injection I like the tuning part of it.
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Re: Pro stock tech
[Re: moparmitch]
#2477314
04/04/18 11:30 AM
04/04/18 11:30 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Whats the bore and stroke of a typical pro stock engine?
Do you have a minimum bob weight you need to have?
Thanks for joining the forum! my bore is 4.733 and my stroke is 3.55. I would like to try a 4.75 bore combo but my budget just isn't going let me.i think alot of teams run 4.75 bore motors.
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Re: Pro stock tech
[Re: Alan Prusiensky]
#2477316
04/04/18 11:32 AM
04/04/18 11:32 AM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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Whats the bore and stroke of a typical pro stock engine?
Do you have a minimum bob weight you need to have?
Thanks for joining the forum! my bore is 4.733 and my stroke is 3.55. I would like to try a 4.75 bore combo but my budget just isn't going let me.i think alot of teams run 4.75 bore motors. I run steel rods so we aren't close to the min. Bob wt rule.
Last edited by Alan Prusiensky; 04/04/18 11:32 AM.
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Re: Pro stock tech
[Re: Alan Prusiensky]
#2477345
04/04/18 12:27 PM
04/04/18 12:27 PM
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Joined: Aug 2004
Posts: 3,394 cheshire, ct
davesmopars
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master
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cheshire, ct
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Alan, Thanks for posting and answering questions. Good Luck
Last edited by davesmopars; 04/04/18 12:27 PM.
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
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Re: Pro stock tech
[Re: Alan Prusiensky]
#2477416
04/04/18 03:23 PM
04/04/18 03:23 PM
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Joined: Dec 2005
Posts: 11,586 Fulton County, PA
CMcAllister
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Mr. Helpful
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Posts: 11,586
Fulton County, PA
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I hear guys talk about the maintenance requirements for a good Top Sportsman combination. Can you gives us some insight on the maintenance routine at the PS level? Number of runs on a freshen, disassembly for inspection, piston/rod replacement, valve springs, etc?
Do you have one or two race day engines that are in a constant state of R&D or mule motors to do R&D on with that info being incorporated in the good engines?
Do you do your own chassis tuning or do you have "people"? Is there constant tweaking according to the track, gear ratios, etc., or is it once it's sorted, it's just a matter of shock adjustments, clutch adjustments, etc.?
If the results don't match the theory, change the theory.
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Re: Pro stock tech
[Re: FastmOp]
#2477426
04/04/18 03:38 PM
04/04/18 03:38 PM
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Joined: Mar 2018
Posts: 104 New Jersey
Alan Prusiensky
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What kind of stall speed do you look for on a good or bad track we run a 5 speed liberty so stall speed isn't something we are not concern with.
Last edited by Alan Prusiensky; 04/04/18 03:38 PM.
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