Plate systems?
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Joined: Feb 2011
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From: Mobile, Al
Plate systems? I have been looking at a few plate systems to run on my carb ls1. I like the zex plate the best. What are you guys opinion on any of the plate systems out there. I plan on running a 150 shot.
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What intake are you running on the car?
What are the future plans on the car? Any plans for big cubes or a forged bottom end?
The carb style intakes on ls1 cars are not an easy intake to set a plate on and just go. They do need to be test fired and distribution checked before you pill it and let it eat on the car. I would also make sure I pulled EVERY plug on several runs to make sure that the distribution is good before adding jet and moving along in the tune up. This is not a bias toward anyone as they ALL need to be checked in my opinion.
Many plates also have a hang over and do not match the flange surface as well as I would like so they cut into the intake path some.
If you have the option of send us your intake, we are big on doing custom matched spray bars to the intake. This allows us to get the distribution right on YOUR car. This is very good solution for a lot of applications based on the added hood clearance and easy access to the fittings for jet changes. This also opens the option of swapping out any spacer ( Either thickness or possible a HVH style spacer) you choose for your combination.
Here is a some examples to check out:
http://www.nitrousoutlet.com/installs/install.asp?id=17
What are the future plans on the car? Any plans for big cubes or a forged bottom end?
The carb style intakes on ls1 cars are not an easy intake to set a plate on and just go. They do need to be test fired and distribution checked before you pill it and let it eat on the car. I would also make sure I pulled EVERY plug on several runs to make sure that the distribution is good before adding jet and moving along in the tune up. This is not a bias toward anyone as they ALL need to be checked in my opinion.
Many plates also have a hang over and do not match the flange surface as well as I would like so they cut into the intake path some.
If you have the option of send us your intake, we are big on doing custom matched spray bars to the intake. This allows us to get the distribution right on YOUR car. This is very good solution for a lot of applications based on the added hood clearance and easy access to the fittings for jet changes. This also opens the option of swapping out any spacer ( Either thickness or possible a HVH style spacer) you choose for your combination.
Here is a some examples to check out:
http://www.nitrousoutlet.com/installs/install.asp?id=17
I've talked to NO about this briefly. I'm currently using the zex plate with no problems. Distribution looks good upto a .072 pill for me. Stock out of the box plate and the intake had about 3/16 milled off the carb flange by the previous owner (stock out of the box other than that).
Anyway, they said they started to see distribution problems right around my nitrous level. They said something about devoting some energy to creating their own carb plate, but it seems like they've kept their efforts to the spray bars.
All of that being said, I'll probably ship my intake to them before long to have them work their magic on it. Just understand that the Zex plate CAN work. It's obviously not the best option (no plate is) but if you watch what it's doing you can get good results.
Anyway, they said they started to see distribution problems right around my nitrous level. They said something about devoting some energy to creating their own carb plate, but it seems like they've kept their efforts to the spray bars.
All of that being said, I'll probably ship my intake to them before long to have them work their magic on it. Just understand that the Zex plate CAN work. It's obviously not the best option (no plate is) but if you watch what it's doing you can get good results.
Guest
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I've talked to NO about this briefly. I'm currently using the zex plate with no problems. Distribution looks good upto a .072 pill for me. Stock out of the box plate and the intake had about 3/16 milled off the carb flange by the previous owner (stock out of the box other than that).
Anyway, they said they started to see distribution problems right around my nitrous level. They said something about devoting some energy to creating their own carb plate, but it seems like they've kept their efforts to the spray bars.
All of that being said, I'll probably ship my intake to them before long to have them work their magic on it. Just understand that the Zex plate CAN work. It's obviously not the best option (no plate is) but if you watch what it's doing you can get good results.
Anyway, they said they started to see distribution problems right around my nitrous level. They said something about devoting some energy to creating their own carb plate, but it seems like they've kept their efforts to the spray bars.
All of that being said, I'll probably ship my intake to them before long to have them work their magic on it. Just understand that the Zex plate CAN work. It's obviously not the best option (no plate is) but if you watch what it's doing you can get good results.
You always up the jets and then you will want the spray bars.
Thanks for adding your experience ryarbrough. Did you ever test fire the plate through the intake previous to putting on the car?
Graham @ N20
If the car still needs more oomph, I'll do something else with the intake.
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I tested it outside the car and everything looked pretty good upto an .082 jet. After that, it seemed like the inside cylinders were getting more nitrous than the four corners. It wasn't HORRIBLE, but it's not something I'd want to go into without knowledge that it was happening. I probably will stay at a .078 or .082 this year, but only because alot of the classes my car fits into are limited by those jets.
If the car still needs more oomph, I'll do something else with the intake.
If the car still needs more oomph, I'll do something else with the intake.
Glad to see some posting of ACTUAL results from a knowledgeable guy.
Graham @ N20
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If you will need other components I ship them back with the intake. ( fittings, jets, pressure gauge)
If you would like to give me a call with any more questions im happy to go over the setup and pro's and con's with you.
Graham @ N20
The statement Graham made about the plate being smaller than the intake it's 100% correct. The plenum opening on my GMPP intake it right at 100mm. Most plates I have seen are around 90mm +/- a few mm. I was looking at finding the right plate until I came across the spray bars. That's what I'll be going with to complement my direct port >:-)
Guest
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The statement Graham made about the plate being smaller than the intake it's 100% correct. The plenum opening on my GMPP intake it right at 100mm. Most plates I have seen are around 90mm +/- a few mm. I was looking at finding the right plate until I came across the spray bars. That's what I'll be going with to complement my direct port >:-)
Did I mention simple?
Graham @ N20
