[ParisTNDude]

I am hearing that the GM Performance CAI doesn't play well with the Edelbrock tune for the eForce supercharger. If anyone has any opinion on the subject, please chime in. I am in dire need of a base Camaro SS air intake box, probably if this is true.

[KingLT1]

Likely because the Edelbrock MAF calibration is based around the stock airbox.

[arpad_m]

Why not get a custom tune instead of reverting to the stock airbox? Tennessee isn't a CARB state unless I'm mistaken.

[ParisTNDude]

Originally Posted by arpad_m

Why not get a custom tune instead of reverting to the stock airbox? Tennessee isn't a CARB state unless I'm mistaken.

I'm thinking about that and wouldn't hesitate to get it tuned as I have in almost every Camaro and Corvette I've owned. 2 reasons I'm hesitant:

1. Edelbrock includes a 3 year powertrain warranty as long as the tune remains as they provide with the SCT tuner. They also state that the warranty is only good if the SC is installed by an SAE mechanic. Mine will be installed by an SAE mechanic.

2. A custom tune will most assuredly increase RWHP for the car and many forum members have indicated that the stock fuel pump cannot support RWHP above about 600 or it starves with catastrophic consequences. Edelbrock with it's tune says it dynos at 609. To upgrade the fuel system, I'm told the LT4 high pressure fuel pump and fuel injectors will fix the problem, but at huge expense.

[arpad_m]

Originally Posted by ParisTNDude

I'm thinking about that and wouldn't hesitate to get it tuned as I have in almost every Camaro and Corvette I've owned. 2 reasons I'm hesitant:

1. Edelbrock includes a 3 year powertrain warranty as long as the tune remains as they provide with the SCT tuner. They also state that the warranty is only good if the SC is installed by an SAE mechanic. Mine will be installed by an SAE mechanic.

2. A custom tune will most assuredly increase RWHP for the car and many forum members have indicated that the stock fuel pump cannot support RWHP above about 600 or it starves with catastrophic consequences. Edelbrock with it's tune says it dynos at 609. To upgrade the fuel system, I'm told the LT4 high pressure fuel pump and fuel injectors will fix the problem, but at huge expense.

I see, makes sense if you want their powertrain warranty. As to the tune, I am as far as one can be from an expert, but what I heard is anything above 580 to 600 rwhp on the stock LT1 fuel system is a roll of the dice. My car only makes 560 rwhp, but I listened to Ted Jannetty, who suggested the JMS voltage booster for stability.

Either way, you'll have a lot of room to grow with the 2650, it can make essentially twice the power you are planning to have for now.

[ParisTNDude]

Originally Posted by arpad_m

I see, makes sense if you want their powertrain warranty. As to the tune, I am as far as one can be from an expert, but what I heard is anything above 580 to 600 rwhp on the stock LT1 fuel system is a roll of the dice. My car only makes 560 rwhp, but I listened to Ted Jannetty, who suggested the JMS voltage booster for stability.

Either way, you'll have a lot of room to grow with the 2650, it can make essentially twice the power you are planning to have for now.

Are you using the JMS voltage booster on a supercharged car?

I saw that Jannetty recommends it and Lingenfelter provides it in one of their kits. So, I did a lot of reading on the JMS voltage booster and it really makes sense. On a DC motor, as in the fuel pump, the more voltage the faster the motor will run. So, increasing the voltage to the fuel pump should increase revolutions and produce more fuel volume or pressure. Since the input voltage is tied to the position of the accelerator pedal, you should be safe.

I was a little worried that the stock fuel pump is probably manufactured to run with an input voltage of like 14.5 max. Does the pump draw a lot more amperage when the voltage is set at 17.45 as with the JMS device? Will the extra voltage affect the reliability of the stock fuel pump? It looks like there are plenty users of the JMS voltage boosters who give it great reviews and it's apparently pretty dependable. The worst thing that could happen is that it would fail on an engine putting out 700 hp and fry the engine.

[arpad_m]

Originally Posted by ParisTNDude

Are you using the JMS voltage booster on a supercharged car?

Yes, see my signature for what I have on the car.

Originally Posted by ParisTNDude

I saw that Jannetty recommends it and Lingenfelter provides it in one of their kits. So, I did a lot of reading on the JMS voltage booster and it really makes sense. On a DC motor, as in the fuel pump, the more voltage the faster the motor will run. So, increasing the voltage to the fuel pump should increase revolutions and produce more fuel volume or pressure. Since the input voltage is tied to the position of the accelerator pedal, you should be safe.

I was a little worried that the stock fuel pump is probably manufactured to run with an input voltage of like 14.5 max. Does the pump draw a lot more amperage when the voltage is set at 17.45 as with the JMS device? Will the extra voltage affect the reliability of the stock fuel pump? It looks like there are plenty users of the JMS voltage boosters who give it great reviews and it's apparently pretty dependable. The worst thing that could happen is that it would fail on an engine putting out 700 hp and fry the engine.

There is a risk of either the JMS or the low pressure fuel pump failing at max load, but Ted strongly recommended the unit based on his experience with it.

Also, the voltage isn't necessarily switched from 14.5 to 17.5 V in a step transition, the unit has different ramp-in and ramp-out rate configurations for accelerator pedal wireup, ie being driven off the 50% to WOT voltage input, which, I think, should reduce the likelihood of sudden failures.

I'm definitely out of my technical depth here, hopefully someone with more mojo can chime in on this. It's definitely true that us with aftermarket supercharged LT1s roll the dice in several ways, but my setup is pretty conservative in that regard.

[ParisTNDude]

Originally Posted by arpad_m

Yes, see my signature for what I have on the car.



There is a risk of either the JMS or the low pressure fuel pump failing at max load, but Ted strongly recommended the unit based on his experience with it.

Also, the voltage isn't necessarily switched from 14.5 to 17.5 V in a step transition, the unit has different ramp-in and ramp-out rate configurations for accelerator pedal wireup, ie being driven off the 50% to WOT voltage input, which, I think, should reduce the likelihood of sudden failures.

I'm definitely out of my technical depth here, hopefully someone with more mojo can chime in on this. It's definitely true that us with aftermarket supercharged LT1s roll the dice in several ways, but my setup is pretty conservative in that regard.

Well, you're absolutely right. No one would begin modding their car's performance without the knowledge that something could go wrong and seriously damage their car. The other risk is losing the OEM power train warranty. How long have you had the JMS device on your car?

[arpad_m]

Originally Posted by ParisTNDude

Well, you're absolutely right. No one would begin modding their car's performance without the knowledge that something could go wrong and seriously damage their car. The other risk is losing the OEM power train warranty. How long have you had the JMS device on your car?

Since September 2018. Zero issues so far, LPFP pressure is stable during pulls and 1/4 mile runs.

[supersportss]

If your going to make over 600 on an LT1, you better start thinking about upgrading the entire fueling system, LPFP, HPFP, injectors, cam lobe, and a supplemental pump. At that point I would't even use a JMS, you'll need something more robust. Plus like Ted told me, your tune becomes more important at that point and not to skimp on the correct fuel setup, or your just asking for a rebuild.

[ParisTNDude]

Originally Posted by arpad_m

Since September 2018. Zero issues so far, LPFP pressure is stable during pulls and 1/4 mile runs.

Are you data logging to find your fuel pressure data?

Originally Posted by supersportss

If your going to make over 600 on an LT1, you better start thinking about upgrading the entire fueling system, LPFP, HPFP, injectors, cam lobe, and a supplemental pump. At that point I would't even use a JMS, you'll need something more robust. Plus like Ted told me, your tune becomes more important at that point and not to skimp on the correct fuel setup, or your just asking for a rebuild.

I have been thinking and concerned about the fuel issues. I contacted Edelbrock about the hype on the forum concerning steady fuel pressure. They told me there would be no problem as long as the vehicle remained perfectly stock as it is and, they provide a 36 month drive train warranty as long as the tune by Edelbrock and vehicle remains stock. So, until I decide what other mods I want to install, I'm going to run it the way Edelbrock prescribes and I will be covered. If I decide to upgrade from there, I will do a dyno tune, whether it's Ted or a local trustworthy tuner. This would be the third tune by Ted since my 2010 Gen 5 Camaro and a Corvette or two on the dyno.

Thanks very much for the warning, though and it is well received.

[arpad_m]

Originally Posted by ParisTNDude

Are you data logging to find your fuel pressure data?

Yes, of course, I wouldn't make these claims otherwise.

[EDFHOBBIES]

You can handle it I watch 3 girls install one on our SS back in 2016 lol.. Same principal!

[ParisTNDude]

Geesh...if two girls can do it, I'm sure two guys could also do it. Actually, I'm ready to install it. Just need to talk the wife out of her side of the garage for a few days while I labor away at this task.

I can't imagine getting to work with the "All Girls Garage" gang. They seem like super great people aside from being awesome mechanics, and...they're not too hard on the eyes!...lol.

How did you get in contact with them to get your SC installed???