AllZWay Posted December 31, 2012 Author Share Posted December 31, 2012 Jerry.... It is probably too late, but I think we may need more than those starting at 42mm. I had to use a 40mm plate on the dyno this weekend. Mitch has loaned me a set to get dynoed with. Quote Link to comment Share on other sites More sharing options...
ShadowBolt Posted December 31, 2012 Share Posted December 31, 2012 So if a 40 worked for you what range do we need? I got sick at work Thrusday so I will run them Wed. JJ Quote Link to comment Share on other sites More sharing options...
ls168camaro Posted December 31, 2012 Share Posted December 31, 2012 Jerry.... It is probably too late, but I think we may need more than those starting at 42mm. I had to use a 40mm plate on the dyno this weekend. Mitch has loaned me a set to get dynoed with. What size plate were you running last year? Is my bullet I sold you makign too much power? Quote Link to comment Share on other sites More sharing options...
wastntim Posted December 31, 2012 Share Posted December 31, 2012 Maybe 40-47? Quote Link to comment Share on other sites More sharing options...
AllZWay Posted December 31, 2012 Author Share Posted December 31, 2012 Jerry.... It is probably too late, but I think we may need more than those starting at 42mm. I had to use a 40mm plate on the dyno this weekend. Mitch has loaned me a set to get dynoed with. What size plate were you running last year? Is my bullet I sold you makign too much power? It made about 4-5 more than last year. They always say an engine is it's fastest right before it blows up. Quote Link to comment Share on other sites More sharing options...
AllZWay Posted December 31, 2012 Author Share Posted December 31, 2012 So if a 40 worked for you what range do we need? I got sick at work Thrusday so I will run them Wed. JJ Jerry...... Just a guess at this point, but I know of some using a 39mm, so maybe 38-47mm. Quote Link to comment Share on other sites More sharing options...
ShadowBolt Posted January 1, 2013 Share Posted January 1, 2013 So if a 40 worked for you what range do we need? I got sick at work Thrusday so I will run them Wed. JJ Jerry...... Just a guess at this point, but I know of some using a 39mm, so maybe 38-47mm. Can we really need that large a range? That's ten sizes! JJ Quote Link to comment Share on other sites More sharing options...
AllZWay Posted January 2, 2013 Author Share Posted January 2, 2013 Jerry... Good question and I honestly don't know the answer. I really thought a 47mm plate would do it for me, but we changed plates by 2mm increments until we got down to the 40mm. Most folks are not going to really need but two or three plates, but knowing what it is going to take is just a guess. In my case.... I would be happy with a 39mm - 44mm set, just to keep it to only five plates.... but I think some will need 42-47mm plates depending on our fresh their engine is and how much hp they are making. Quote Link to comment Share on other sites More sharing options...
ShadowBolt Posted January 3, 2013 Share Posted January 3, 2013 Jerry... Good question and I honestly don't know the answer. I really thought a 47mm plate would do it for me, but we changed plates by 2mm increments until we got down to the 40mm. Most folks are not going to really need but two or three plates, but knowing what it is going to take is just a guess. In my case.... I would be happy with a 39mm - 44mm set, just to keep it to only five plates.... but I think some will need 42-47mm plates depending on our fresh their engine is and how much hp they are making. I will make five sets of 39 to 47. JJ Quote Link to comment Share on other sites More sharing options...
Members Al F. Posted January 3, 2013 Members Share Posted January 3, 2013 lol last I dynoed mine it made the numbers uncorked Maybe it'll make more this year since its had a two year "rest". Quote Link to comment Share on other sites More sharing options...
Pranav Posted January 10, 2013 Share Posted January 10, 2013 JJ, Not sure if you missed my PM to you earlier, but I am bringing a new LT1 build to the MSRH dyno next Friday and am dire need of plates. I know you're doing this for "fun" but let me know if I can do anything to help? Thanks, Pranav. Quote Link to comment Share on other sites More sharing options...
wastntim Posted January 10, 2013 Share Posted January 10, 2013 Jerry... Good question and I honestly don't know the answer. I really thought a 47mm plate would do it for me, but we changed plates by 2mm increments until we got down to the 40mm. Most folks are not going to really need but two or three plates, but knowing what it is going to take is just a guess. In my case.... I would be happy with a 39mm - 44mm set, just to keep it to only five plates.... but I think some will need 42-47mm plates depending on our fresh their engine is and how much hp they are making. I will make five sets of 39 to 47. JJ Definately count me in for a set. Quote Link to comment Share on other sites More sharing options...
rsmith350 Posted January 10, 2013 Share Posted January 10, 2013 JJ, Not sure if you missed my PM to you earlier, but I am bringing a new LT1 build to the MSRH dyno next Friday and am dire need of plates. I know you're doing this for "fun" but let me know if I can do anything to help? Thanks, Pranav. If all else fails you can use mine Quote Link to comment Share on other sites More sharing options...
Pranav Posted January 10, 2013 Share Posted January 10, 2013 Thanks, may take you or anyone else up on that. I'm not racing so I'll only need to borrow for the dyno. Quote Link to comment Share on other sites More sharing options...
ShadowBolt Posted March 13, 2013 Share Posted March 13, 2013 I just made five sets of 39 to 47 MM. If I have it right James wanted a set, Robert, Kent and maybe Pravav. I can deliver James and Pranav this weekend but I need address for Kent and Robert. Please e-mail me at [email protected] JJ Quote Link to comment Share on other sites More sharing options...
Steve91T Posted March 13, 2013 Share Posted March 13, 2013 Instead of dealing with resteictor plates, why not simply restrict the exhaust? Doesn't that create more low end torque? A restrictive muffler and smaller diameter pipe would probably do it, right? Quote Link to comment Share on other sites More sharing options...
ShadowBolt Posted March 13, 2013 Share Posted March 13, 2013 Instead of dealing with resteictor plates, why not simply restrict the exhaust? Doesn't that create more low end torque? A restrictive muffler and smaller diameter pipe would probably do it, right? I don't know if you are right or not but how are you going to change mufflers and different size pipe during a dyno session? JJ Quote Link to comment Share on other sites More sharing options...
Steve91T Posted March 13, 2013 Share Posted March 13, 2013 I'm thinking you could just clamp on a smaller diameter turn down. They make them in different flavors and are dirt cheap. You could have it band clamped on. My exhaust will be welded from Y pipe back, but leaving the turn down clamped with a SS band clamp would work. Secure, but easy to change. I can't be the first one to think of this, just wondering why nobody does it. Seems better than dealing with restristor plates. Plus, isn't there a throttle response issue with restrictor plates? Quote Link to comment Share on other sites More sharing options...
Glenn Posted March 13, 2013 Share Posted March 13, 2013 I'm thinking you could just clamp on a smaller diameter turn down. They make them in different flavors and are dirt cheap. You could have it band clamped on. My exhaust will be welded from Y pipe back, but leaving the turn down clamped with a SS band clamp would work. Secure, but easy to change. I can't be the first one to think of this, just wondering why nobody does it. Seems better than dealing with restristor plates. Plus, isn't there a throttle response issue with restrictor plates? There used to be a requirement for where the restrictor had to be located. May not be that way now. I have some 4th gen Borla exhaust plates modified to install in my 3 bolt flange that is at the end of my Y pipe. I have never installed them. The last thing you want is more low end tq. My car w/ a 37mm plate in the intake just made a 3 pull average of 311tq at 2400 RPM's. The graph slopes downhill from there on. I have about 250lb of tq in the usable RPM range. The ticket is to have an LT1 peak at about 4000-4500. Dropping the comp ratio would be a good thing for the LT1. It would also be nice to have a 112-110 LSA cam w/ stock dur and lift. Quote Link to comment Share on other sites More sharing options...
koserv Posted March 13, 2013 Share Posted March 13, 2013 Ditto here. I have to plate for torque, not HP. And the max Tq is so low in the rpm range it's useless. The only bright spot is it stays reasonably flat to around 4k. Took a while to learn to drive to the curve. Quote Link to comment Share on other sites More sharing options...
Glenn Posted March 13, 2013 Share Posted March 13, 2013 The fastest lap I have made at my home track was while breaking in a new motor. Short shifting and all. Quote Link to comment Share on other sites More sharing options...
wastntim Posted March 15, 2013 Share Posted March 15, 2013 Got my plates today. They look great. Thank you. Quote Link to comment Share on other sites More sharing options...
Ben2004 Posted March 27, 2013 Share Posted March 27, 2013 I need a set as well. I sent you an email Jerry. Thanks! Quote Link to comment Share on other sites More sharing options...
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