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Raising boost question

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Old May 4, 2011 | 03:25 PM
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Default Raising boost question

My current setup :

2000 FRC
ECS Novi2k kit
ECS 346 blower cam
AR 1 7/8" headers
GHL's

I put down 531 RWHP and 450 TQ.

What I plan on doing is getting the Alkycontrol meth kit and getting the car retuned. The tune on the car now needs work, it runs too rich and I believe there's more power to be made on the tune alone.

I was planning on taking the car to NLP in Orlando (formerly Mike Norris Motorsports) and have Geoff tune it. I have heard some good reviews about his shop, and will not be taking it back to the place that originally tuned the car.

Geoff said that if I wanted, along with the meth kit and retune, I could also raise the boost to 10lbs. I wanted to get some other opinions from you guys and see if this is something that is commonly done, and if it's a good/bad idea.

He also said if I did raise the boost, I would need to add a boost a pump or I would be running out of fuel. I am running what came in ECS's kit right now - 60lb injectors and a 255LPH fuel pump (not sure of the brand, maybe lingenfelter). Would a boost a pump be necessary? Is there a better option?

Let me know guys!
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Old May 4, 2011 | 03:31 PM
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Definitely raise the boost and get the BAP. You will love it!
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Old May 4, 2011 | 03:33 PM
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You will need to modify your fuel system. The least you can do is add a BAP.
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Old May 4, 2011 | 03:54 PM
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Originally Posted by Milan
Definitely raise the boost and get the BAP. You will love it!
I see you're in the same area. Did you get your car tuned locally?
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Old May 4, 2011 | 08:59 PM
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Yeah I'm getting a price quote from NLP sent to me tomorrow for the meth install, tune, and changing the belts to raise the boost.

The oil pressure sensor at the back of my manifold went bad and it's not reading oil pressure correctly, I'm thinking about having them replace it and while they have the manifold off I might upgrade to either a LS6 or a FAST. Geoff @ NLP recommended just going to a LS6 to save $600 or so. Not sure about the throttle body or MAF yet.

I have the LS1 manifold now. Any suggestions?
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Old May 4, 2011 | 10:34 PM
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Just go with the ls6 manifold, you should be happy with that, add more fuel either by BAP or external pump. On a shock shortblock 550 is pushing it but it should last for a little.. Hope for the best and plan for a new shortblock
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Old May 4, 2011 | 10:40 PM
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Originally Posted by Renegade00
I see you're in the same area. Did you get your car tuned locally?
No I do my own tuning.

I've heard good things about EFI Alchemy though
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Old May 5, 2011 | 02:16 AM
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Originally Posted by C5sleeper
Just go with the ls6 manifold, you should be happy with that, add more fuel either by BAP or external pump. On a shock shortblock 550 is pushing it but it should last for a little.. Hope for the best and plan for a new shortblock
I'm hoping to find a used LS6 manifold on here . Maybe save $600 or so by going that route. Is the LS6 that much of an improvement over an LS1?
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Old May 5, 2011 | 02:17 AM
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Originally Posted by Milan
No I do my own tuning.

I've heard good things about EFI Alchemy though
What do you have done to yours? Have you tuned others?

I haven't heard of EFI Alchemy. Where are they located?
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Old May 5, 2011 | 08:18 AM
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Did I see my name here

Going to 10lbs should not be a big deal and when done right, not a problem. I do have another suggestion for a manifold swap though.

The LS6 is a great intake and if you can find one a much better option then the LS1. Since you have a FI car, then the LS2 intake becomes an option and allows you to use a LS2 90mm TB. If it was NA, I would say an LS6 all the way.

VMax has a great porting program for the LS2 on a supercharged vehicle and that combined with one of their LS2 TB's would work great. Of course you will have the initial cost of the intake, fuel rails and TB plus the port work, so the cost would not be as cheap as an LS6 swap. But it is a good option if you want to go to a 90mm setup.

If I had to guess on cost, you can maybe find a used intake, rails and TB for around $500 or so, maybe less with some hunting, then around $350 for the intake porting and $150 for the TB CNC work. Still quite a bit less then the FAST setup.

Plus with only the 102mm being available new now from FAST, it takes some work to get it to fit the firewall You would need to hunt down an older 90-92mm FAST intake.

Hope this helps and feel free to call if you need any more info or call Pete directly at VMax.

Mike Norris
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Old May 5, 2011 | 10:41 AM
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i got my ls6 manifold on ebay for 220 shipped with fuel rails. Take a look and you will be suprised how cheap u can find them
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Old May 5, 2011 | 11:26 AM
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Originally Posted by Mike@NorrisMotorsports
Did I see my name here

Going to 10lbs should not be a big deal and when done right, not a problem. I do have another suggestion for a manifold swap though.

The LS6 is a great intake and if you can find one a much better option then the LS1. Since you have a FI car, then the LS2 intake becomes an option and allows you to use a LS2 90mm TB. If it was NA, I would say an LS6 all the way.

VMax has a great porting program for the LS2 on a supercharged vehicle and that combined with one of their LS2 TB's would work great. Of course you will have the initial cost of the intake, fuel rails and TB plus the port work, so the cost would not be as cheap as an LS6 swap. But it is a good option if you want to go to a 90mm setup.

If I had to guess on cost, you can maybe find a used intake, rails and TB for around $500 or so, maybe less with some hunting, then around $350 for the intake porting and $150 for the TB CNC work. Still quite a bit less then the FAST setup.

Plus with only the 102mm being available new now from FAST, it takes some work to get it to fit the firewall You would need to hunt down an older 90-92mm FAST intake.

Hope this helps and feel free to call if you need any more info or call Pete directly at VMax.

Mike Norris
Awesome info

I will definitely look into the LS2 vs LS6/FAST and probably give you a call today or tomorrow.
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Old May 5, 2011 | 12:09 PM
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A bap is an inexpensive necessary piece. Easy to install and worth the money. 10 psi with bap,60's,meth,255 pump you'll be fine and keeping it cool and safe.

Thanks,Matt
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Old May 5, 2011 | 12:10 PM
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A bap is an inexpensive necessary piece. Easy to install and worth the money. 10 psi with bap,60's,meth,255 pump you'll be fine and keeping it cool and safe.

Thanks,Matt
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Old May 5, 2011 | 01:29 PM
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For your purposes I don't think changing the intake will be worth the money. It's easier to just turn the boost up. A LS1 intake will support 650+RWHP. I have a FAST102, LS7TB both ported but I also have 225 heads to go along with the change. Not saying a LS6 swap isn't an update. Your problem is you have to decide how much HP you want then getting the pieces to support it. You also don't have drivetrain updates to support much over 550HP without risking breaking things immediately. Even at that HP you will eventually have to build your drivetrain.

It's not a bad idea to go with the LS6 manifold but put it in context to the entire build you have.
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Old May 5, 2011 | 01:52 PM
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Originally Posted by corvettesforfun
For your purposes I don't think changing the intake will be worth the money. It's easier to just turn the boost up. A LS1 intake will support 650+RWHP. I have a FAST102, LS7TB both ported but I also have 225 heads to go along with the change. Not saying a LS6 swap isn't an update. Your problem is you have to decide how much HP you want then getting the pieces to support it. You also don't have drivetrain updates to support much over 550HP without risking breaking things immediately. Even at that HP you will eventually have to build your drivetrain.

It's not a bad idea to go with the LS6 manifold but put it in context to the entire build you have.
That is good advice. I was kind of thinking the same thing and the guy tuning the car said the same thing as well. If I do plan to do heads down the road I will probably end up getting pistons/rods and then that might be the best time to change the manifold/tb.

I tend to get carried away when I start to do one thing I try to convince myself why I should upgrade all these other things at the same time lol.
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Old May 5, 2011 | 01:53 PM
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Originally Posted by madmatt9471
A bap is an inexpensive necessary piece. Easy to install and worth the money. 10 psi with bap,60's,meth,255 pump you'll be fine and keeping it cool and safe.

Thanks,Matt
Any idea how much RWHP this fuel setup will support?
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Old May 5, 2011 | 02:46 PM
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Originally Posted by renegade00
any idea how much rwhp this fuel setup will support?
600+
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Old May 5, 2011 | 03:05 PM
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Originally Posted by Renegade00
I haven't heard of EFI Alchemy. Where are they located?
EFI Alchemy is in Jacksonville, good group there.



I would personally leave the intake, your not going to gain much at all with boost. I would bet the fuel pump with the kit would be fine with meth injection since you are technically lowering the fuel requirements of the pump with the added meth, but adding a BAP would certainly not be a bad idea.

For your set up I would suggest opening up the restrictor plate a bit to up the boost to ten lbs, add the meth injection, and relocate your IAT sensor after the meth nozzle so it is recognised by the PCM so safeties can be tuned in.

That should yield an easy 550-600rwhp, with longevity.
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Old May 5, 2011 | 04:52 PM
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Originally Posted by DOUG @ ECS
EFI Alchemy is in Jacksonville, good group there.



I would personally leave the intake, your not going to gain much at all with boost. I would bet the fuel pump with the kit would be fine with meth injection since you are technically lowering the fuel requirements of the pump with the added meth, but adding a BAP would certainly not be a bad idea.

For your set up I would suggest opening up the restrictor plate a bit to up the boost to ten lbs, add the meth injection, and relocate your IAT sensor after the meth nozzle so it is recognised by the PCM so safeties can be tuned in.

That should yield an easy 550-600rwhp, with longevity.
Do you have any experience w/ NLP? I'm in the Tampa / St. Pete area so they're closer to me - in Orlando. I think I talked to Mike over there and he recommended them. I wish I was closer to you guys that would save me the worry of who to bring it to

Okay looks like I'll keep the stock manifold for now. From what I understand it won't make a huge difference anyway until I decide to change heads or something like that..

Single nozzle meth kit should be good right? Oh, also.. when do I need to change to an 8 rib?
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