C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
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Old Jun 22, 2013 | 09:24 PM
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St. Jude Donor '13-'14-'15
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Hey everyone, I'm running into an issue with my car and I've recently moved from Houston where all my work was done, now if needed I will take the car back there but I'm trying to avoid that If possible, here is what's up, my supercharger has only been on my car for just a few months (A&A V3-SI) but lately it feels like its down on power and almost like its bogging down, it's got meth and the car runs fine when not on boost, I've checked all the connections, everything looks fine, fuel pressure looks good, the belts are all tight, no codes or anything. I am going to call and talk to the Guys at Englandgreen about it Monday and see what they think, but I just figured I would throw this out to see if anyone may have had some issues like this before. It was running like a scalded beast and then just started losing power and it seems like its getting worse, if the car did not run so good off boost I could understand but it runs fine.
Any ideas anyone ?
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Old Jun 22, 2013 | 09:49 PM
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Originally Posted by skydiven4fun
Hey everyone, I'm running into an issue with my car and I've recently moved from Houston where all my work was done, now if needed I will take the car back there but I'm trying to avoid that If possible, here is what's up, my supercharger has only been on my car for just a few months (A&A V3-SI) but lately it feels like its down on power and almost like its bogging down, it's got meth and the car runs fine when not on boost, I've checked all the connections, everything looks fine, fuel pressure looks good, the belts are all tight, no codes or anything. I am going to call and talk to the Guys at Englandgreen about it Monday and see what they think, but I just figured I would throw this out to see if anyone may have had some issues like this before. It was running like a scalded beast and then just started losing power and it seems like its getting worse, if the car did not run so good off boost I could understand but it runs fine.
Any ideas anyone ?
Is it running hotter where your at now then in hosston?? If so there might be safe tune where it pulls timing if iat's or engine temp goes over a certain temp. Doesn't hurt to check.
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Old Jun 22, 2013 | 10:01 PM
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I'm still down south about 450 miles East of Houston, the car has never had any issues with getting hot, we replaced the water pump, all hoses and installed a Dewitt's radiator during the install, and with just a few thousand miles all of the fuel system including filter of course has been changed. It's still climbing to 10 lbs of boost, but kind stumbles some when first getting on it.
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Old Jun 23, 2013 | 02:20 AM
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Is your car speed density tuned?

Do you have the capability of doing any data logging?
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Old Jun 23, 2013 | 05:56 AM
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Originally Posted by MVP'S ZO6
Is your car speed density tuned?

Do you have the capability of doing any data logging?
No and no, and since I'm in Mississippi now my options are pretty slim on finding anyone that can help with that, I'm beginning to think I might be better off to just pack her and take her back to Houston, Stephen and the guys at Englandgreen have done almost everything to the car over the last two years and I know they could figure it out, I just was hoping that it would have been something that I could have done. I might consider buying what is needed to data log if that would help me figure this out though.
Anything specific you could recommend ?
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Old Jun 23, 2013 | 10:14 AM
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Are you sure the meth pump is working properly? Maybe pulling timing if IATs are high?

Pull the nozzle and do a test to make sure, it's a start! Also talk to your tuner before you make the trip. If the car was running fine before it maybe something small and simple! Good luck, hopes it's a cheap fix!
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Old Jun 23, 2013 | 12:11 PM
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with IAT

At 10Lbs and you're running a MAF tune? maybe your MAF is freaking out. If you're brave enough you can separate the IAT sensor wires form the MAF and put in a seperate sensor. Your temp sensor should be after METH any ways, or your timing will be set for the intake charge before meth. If you're blowing Meth across your MAF you could have done some damage to the electrics. Just some food for thought.
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Old Jun 23, 2013 | 01:11 PM
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Maybe you have a boost leak, blowing all your boost out. Visual inspection often doesn't work either. I've seen cracked intercoolers, cracked MAF's, tears in pipes that can't be seen but will blow massive amounts of boost out before it gets to the engine. Got a boost gauge? still full boost? If yes and yes, then I would consider some protection built into the tune for lack of meth flow, but only if your IAT has been relocated because that's the only way it could be implemented. You could buy HPtuners and start logging the car and get remote help. I can get you HPtuners at a discounted price. PM me if interested.
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Old Jun 23, 2013 | 03:47 PM
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Thanks for all the input everyone, I have spent most of the day with the car up on jack stands looking everything over again, I pulled the MAF and looked over all the hoses and connections again and everything looked ok visually, I have not done the test on the meth yet as Blitzkrieg has suggested, I do have a boost gauge and it was pulling 10 lbs of boost the last time that i did try and run it up.
the car had the separate IAT and MAF but when the blower was installed it was swapped for a later model, I still have my old items though in case it comes to have to change it back. The car was running so freaking awesome up until this,
One thing I have not checked and I bring this up cause I took it for another spin and I noticed that it has started bucking worse than before almost like it was running out of fuel after getting on it, I was not running the crap out of it cause I'm being somewhat cautious, but the way it was acting was like it was starving for fuel, it's making me think that the fuel filter could be clogged cause it runs fine but directly after gunning it she acts like she is running out of fuel for just a bit then it starts to act normal again, the fuel filter was replaced, but when I started looking it was actually about 6 months before the blower install, I went ahead and ordered a new fuel filter and it should be here Tuesday, I have a pretty busy week coming up so I wiped her down and put her back in the garage till I get time to change it out. I've had a few cars act like this before and I'm hoping it could be this simple, I have been watching fuel pressure and its holding steady at just above 60lbs, but I've read that it is possible to still hold good pressure even with a clogged fuel filter.
I sure hope that its just this simple, if not I may go ahead and talk to BlownBlueZ about getting what I need to data log the car.
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Old Jun 23, 2013 | 04:46 PM
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what meth system does it have on it?
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Old Jun 23, 2013 | 04:50 PM
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Originally Posted by BLOWNBLUEZ06@RKT56
what meth system does it have on it?
Alky 100% meth, Something I forgot to add is shortly after the car was finished and when it was still running correctly I began to notice that after driving the car and it sat for a few minutes (like if you went into a store) when you went to restart the car it would start but would start off with a very low idle and slowly go back to normal, not sure if anyone has had anything like that happen but figured I would throw it out there, When that started happening is around the time that things started being abnormal,
Almost like a flooded car would act.

Last edited by skydiven4fun; Jun 23, 2013 at 07:02 PM.
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Old Jun 23, 2013 | 08:59 PM
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I'm interested in your solution. Good luck!
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Old Jun 23, 2013 | 10:05 PM
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Originally Posted by skydiven4fun
Alky 100% meth, Something I forgot to add is shortly after the car was finished and when it was still running correctly I began to notice that after driving the car and it sat for a few minutes (like if you went into a store) when you went to restart the car it would start but would start off with a very low idle and slowly go back to normal, not sure if anyone has had anything like that happen but figured I would throw it out there, When that started happening is around the time that things started being abnormal,
Almost like a flooded car would act.
I wold suggest supercharger system (cap off blower, bpv,intake pipe) see if it holds pressure -

What you are describing on start-up reminds me of what happened to my buddies Meth system, it would leak into the charge system and flood - his was a crappy SNOW system and we have since trashed that garbage and installed an Alky Control system - no more problems!

I had a tear in one of my Boost tubes and was loosing power and thought something was busted, turned out to be a tear on the backside upper section of my Boost hose - replaced and all is good!

When you pressurize the boost system you might find that you have a cracked MAF or something that is NOT visually or easilly seen by the naked eye!

Keep us posted!

Thanks,Matt
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Old Jun 23, 2013 | 10:57 PM
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Originally Posted by madmatt9471
I wold suggest supercharger system (cap off blower, bpv,intake pipe) see if it holds pressure -

What you are describing on start-up reminds me of what happened to my buddies Meth system, it would leak into the charge system and flood - his was a crappy SNOW system and we have since trashed that garbage and installed an Alky Control system - no more problems!

I had a tear in one of my Boost tubes and was loosing power and thought something was busted, turned out to be a tear on the backside upper section of my Boost hose - replaced and all is good!

When you pressurize the boost system you might find that you have a cracked MAF or something that is NOT visually or easilly seen by the naked eye!

Keep us posted!

Thanks,Matt
I will definitely keep everyone posted, I currently have an alky set up,but I guess it's possable for anything to take a dump, everything was purchased brand new and all of it is just a few months old, I know if I drove the car to Houston Stephen would take care of it for me, but if its something that I can fix it would save lot of time, I will definitely try to pressure up the system to see if anything presents itself, I've already ordered the fuel filter so I'm going to change it out just for peace of mind.
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Old Jun 24, 2013 | 08:55 AM
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What kind of valve springs are on the car?
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Old Jun 24, 2013 | 11:16 PM
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Originally Posted by JLayer
What kind of valve springs are on the car?
They were upgraded when the cam kit was installed, there the ones that Englandgreen uses with their cam kit, I got the car up today and started getting her ready to really get into it, I'll keep everyone posted, I hope to know more tomorrow
Checked the plugs they looked good, just starting to make a list and check things off following Stephens (EG) guidance.
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Last edited by skydiven4fun; Jun 24, 2013 at 11:22 PM.
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Old Jul 5, 2013 | 02:11 AM
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Update: hey everyone it looks like swapping the fuel filter out took care of everything, the car is running great, of course while I had her in the air I went ahead and changed all the fluids front to back and even had some extra time to clean up everything underneath, I appreciate everyone's input and plan on investing in some equipment to be able to data log my car for future issues when they arise.
Thanks
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