Technical opinion on Procharging my 01' Baja H2X
02-07-2012 | 06:06 PM
#21
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From: St-Hyacinthe, quebec, canada
Jeff do you recall if your H2X had any model specific parts on it to make it work right. I know the 6.2 motor already has forged parts stock so thats a plus in my corner. I see yours had an MSD ignition of some sort and I see the exhaust was upgraded. Would you happen to know what spark plugs were in it? I was planning to leave mine stock except for the needed upgrades to make it reliable.
02-08-2012 | 08:28 AM
#22
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From: Central IL
Good move on going with the Whipple kit.
02-08-2012 | 09:23 AM
#23
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From: Gulfport, MS
Well after talking to Shooter last night I think it would be smarter to wait until my 11 year old motor gives up it's ghost and then swap it out for a 502. Too much red tape around superchargers in boats then add the destroyed resale value it just isn't worth it. Thanks for the info Shooter I will contact you again when it comes time for a new Bullit!
02-08-2012 | 09:52 AM
#24
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From: Spicewood, Texas USA
Just to throw in my 2 cents. There is no "bolt on" and go kit. Like Eddie mentioned there are a lot of things that need to be addressed to be reliable. The 6.2 does not have forged pistons. They will eventually fail. The procharger fuel management system is crude at best. You need to set it up with a 2 bar map sensor and reprogram the ecm to get the tune correct. I've done prochargers and whipples both on 6.2L but we always went through engines and upgraded pistons, added oil cooler and upgraded the fuel system. If you do it right you can get a dependable 500 HP or more if you upgrade the heads. We've done several with the Edelbrock Etec heads and they really work well. Around 565 HP with 6 psi boost.
Bob Lloyd
Full Throttle Marine
Bob Lloyd
Full Throttle Marine
02-08-2012 | 12:44 PM
#25
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From: Oneida Lake NY
I agree with the above on fuel systems, Aeromotive makes some nice stuff, you may want to look them up. I have a freind with a pro charged 454mpi CAST 330hp engine, running strong no issues.
For those questioning the internals of the 6.2 ls based engine read this and get back to me http://www.hotrod.com/techarticles/h...g_bang_theory/
Do your research for fuel, and be a pioneer! I would love to see the results. I don't think anyone has enough experience to be commenting on blown stock small blocks in boat. Sometimes guinea pigs end up being geniuses
For those questioning the internals of the 6.2 ls based engine read this and get back to me http://www.hotrod.com/techarticles/h...g_bang_theory/
Do your research for fuel, and be a pioneer! I would love to see the results. I don't think anyone has enough experience to be commenting on blown stock small blocks in boat. Sometimes guinea pigs end up being geniuses
02-08-2012 | 01:46 PM
#26
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From: Central IL
I agree with the above on fuel systems, Aeromotive makes some nice stuff, you may want to look them up. I have a freind with a pro charged 454mpi CAST 330hp engine, running strong no issues.
For those questioning the internals of the 6.2 ls based engine read this and get back to me http://www.hotrod.com/techarticles/h...g_bang_theory/
Do your research for fuel, and be a pioneer! I would love to see the results. I don't think anyone has enough experience to be commenting on blown stock small blocks in boat. Sometimes guinea pigs end up being geniuses
For those questioning the internals of the 6.2 ls based engine read this and get back to me http://www.hotrod.com/techarticles/h...g_bang_theory/
Do your research for fuel, and be a pioneer! I would love to see the results. I don't think anyone has enough experience to be commenting on blown stock small blocks in boat. Sometimes guinea pigs end up being geniuses
02-08-2012 | 02:23 PM
#27
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From: Oneida Lake NY
The Merc 6.2L MPI that came out in 2000/2001 to replace the 7.4L MPI is not an LS-based motor. It is the same 350 Chevy long-block supplied to Merc from GM that Merc stroked to 377 cu. in. Mercury does not use forged pistons in the 6.2L MPI. Bob has experience with adding supercharges to small-blocks in boats so he absoutely is one to comment on the subject.
I was calling any one person out, as much as I was calling everyone out. This site has a lot of knowledge, but it also has a ton of "you can't do that" sometimes without reason.
I still think he should go for it
02-08-2012 | 09:28 PM
#29
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From: Fresno, CA, 93722, USA
AMEN!!!
They recommended not changing the fuel system???? You are going to increase the power by approx. 50% and nothing needs to be done with the fuel system? What does the pickup in the fuel tank look like? How big is it? What about the fuel lines? The filter head with it's 1/4" npt fittings. Does it have an anti-siphon valve?
All of these items were installed with the stock 350 hp engine. That's what they are designed to support....not 450 hp. These things may be fine, but more than likely some or all need to be addressed. I can almost guarantee that the pickup in the tank is a plastic pickup tube with a VERY small hole. Then the adapter fitting that screws into the top of the pickup blocks off half of the hole, making it even smaller.
You are going to have a much higher fuel pressure with the Procharger. You are going to need to be able to move enough volume of fuel to supply that amount of increased pressure.
What I'm trying to say is that I have done a lot of Procharger setups and have seen tons of them come in that are in boxes because none of the items I mentioned were addressed. Make sure that you do it once, and do it right. If you can't afford to do it right, then wait until you can afford it. It will cost a little more to do it right, but it will save you a ton of money and heartache in the end.
As mentioned previously, there is NO such thing as a bolt on supercharger kit. If they told you up front about everything else that needed to be done, they would sell a whole lot less kits.
Don't hesitate to contact me if you have any questions. I would be glad to help you out the best I can with advice, etc. Find someone that you are comfortable with. Do some research on that person to be sure he does good work. Good luck.
Eddie
They recommended not changing the fuel system???? You are going to increase the power by approx. 50% and nothing needs to be done with the fuel system? What does the pickup in the fuel tank look like? How big is it? What about the fuel lines? The filter head with it's 1/4" npt fittings. Does it have an anti-siphon valve?
All of these items were installed with the stock 350 hp engine. That's what they are designed to support....not 450 hp. These things may be fine, but more than likely some or all need to be addressed. I can almost guarantee that the pickup in the tank is a plastic pickup tube with a VERY small hole. Then the adapter fitting that screws into the top of the pickup blocks off half of the hole, making it even smaller.
You are going to have a much higher fuel pressure with the Procharger. You are going to need to be able to move enough volume of fuel to supply that amount of increased pressure.
What I'm trying to say is that I have done a lot of Procharger setups and have seen tons of them come in that are in boxes because none of the items I mentioned were addressed. Make sure that you do it once, and do it right. If you can't afford to do it right, then wait until you can afford it. It will cost a little more to do it right, but it will save you a ton of money and heartache in the end.
As mentioned previously, there is NO such thing as a bolt on supercharger kit. If they told you up front about everything else that needed to be done, they would sell a whole lot less kits.
Don't hesitate to contact me if you have any questions. I would be glad to help you out the best I can with advice, etc. Find someone that you are comfortable with. Do some research on that person to be sure he does good work. Good luck.
Eddie
02-08-2012 | 09:51 PM
#30
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From: Denmark and hopefully some place nice
Hope this helps.
