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Twin MP70's on an LS3 416 w/ AFR 225's

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Old 05-04-2010 | 01:12 PM
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Default Twin MP70's on an LS3 416 w/ AFR 225's

We are just getting started on another project. This one is BonnarLS1's car.

We were initially going to do it in a bunch of small phases in order to see the individual effects of the mods but it was determined that it would add too much time overal and Joe (BonnarLS1) is wanting this done in 2 months or less.

The car is currently a 2000 Formula with an:
LS3 416 11ish:1
AFR 225 heads
FAST 92mm Intake
FAST 92mm Throttle body
Comp Cam (Can't remember the specs. He'll post it)
Kooks 2" LT Headers
TH350 w/ RMVB and TBrake
9" 3.25:1 gears, spool and 35 spline axles
Runs on a 325/50/15 MT DR and weighs about 3900#

Runs consistant 10.4's @ 128ish with solid high 1.3 60'. N/A

We will be making a (modified) truck manifold twin kit for it. The current plan is the cut the flanges off the truck manifold and weld on a forward facing 2.5 vband flanges. Then a small 2.5" elbow up to each T4 flange right up against the frame rails and the Master Power 70's inlets facing the fenders. We are going to try to retain the PA K-member and see if we can squeeze a 3" out the driver's side. Pass side has lots of room without the A/C Compressor in the way. Oil return for the turbos is via a couple -10 bungs currently being welded into the front cover.

So we started in on it last night. They got the entire front clip apart in order to cut for the radiator and measure for the intercooler. I'm pretty sure that we decided on a treadstone 3" single bottom in/out that is 30" wide(overall)X 12" X 4.5".


ABS is getting deleted and all the relays and harness is getting relocated into the car. The dash was removed and all the A/C **** on the inside and outside of the firewall is coming out tonite.

Old 05-04-2010 | 01:15 PM
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This car is also getting the AEM computer, 160# injectors, 2500 HP Magnafuel pump and will be on e85. It will start out as a low boost setup. Once he banks a little money, the motor configuration will be switched around a little bit for lower compression and mo' boost.
Old 05-04-2010 | 01:19 PM
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Looking forward to another kick *** build from you guys.

Should be a monster with that compression....
Old 05-04-2010 | 01:48 PM
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here's some parts
Attached Thumbnails Twin MP70's on an LS3 416 w/ AFR 225's-picture-012.jpg  
Old 05-04-2010 | 02:17 PM
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the cam spec's Comp Cams Hydraulic Roller 243 / 251 .624/.624 114 LSA, Excellent top end and high rpm power for race style LS engines with aftermarket cathedral port cylinder heads. RPM range from 2600 to 7200.
Old 05-04-2010 | 02:26 PM
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More wiring for me.
Old 05-04-2010 | 02:39 PM
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Yall are building some beast. The FI section on tech is the only place where a 10 second car seems slow.
Old 05-04-2010 | 02:46 PM
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Originally Posted by ls2formula
More wiring for me.
you should have it done tonite
Old 05-04-2010 | 02:48 PM
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That car is going to be rediculous!
Old 05-04-2010 | 04:21 PM
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Originally Posted by ls2formula
More wiring for me.
I hear ya brother, I am about to jump into mine tomorrow, it's all out, and going to start to put it all in the car and get he dash back in now that my computer is here and I fabbed up a mount for it yesterday.
Old 05-04-2010 | 04:25 PM
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running a fuel cell or how are you feeding the magnafuel?
Old 05-04-2010 | 04:46 PM
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This is going to be another sick build...
Old 05-04-2010 | 04:59 PM
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I've got my second gt70 coming in tomorrow to match my current one. I can't wait to start my twin turbo setup. I'll be going out to sea shortly, so it will have to wait. I'll be watching this though.
Old 05-04-2010 | 06:44 PM
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which magnafuel pump are you guys going to use?

sounds like a bad *** build!
Old 05-04-2010 | 06:45 PM
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Originally Posted by Loudmouth LS1
I hear ya brother, I am about to jump into mine tomorrow, it's all out, and going to start to put it all in the car and get he dash back in now that my computer is here and I fabbed up a mount for it yesterday.
Atleast your harness is already stripped down. His is FULL factory.
Remember the 20lbs of copper your stripped out over here? LOL.

Originally Posted by bonnarls1
here's some parts
Sans that little dinky intercooler. That got rejected by inspector Los.


Originally Posted by KagA152
running a fuel cell or how are you feeding the magnafuel?
Our buddy that does our welding is making him an aluminum tank with a sump.
Old 05-04-2010 | 06:49 PM
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Originally Posted by Tiago
which magnafuel pump are you guys going to use?

sounds like a bad *** build!
MP-4303. Correction. It is rated at 2000 NA. Should be enough to supply the fuel for now. Once we turn it up, we'll add a second pump if the need arises. The tank will have 2 -12 bungs at the sump.
Old 05-04-2010 | 07:04 PM
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Originally Posted by 98Z28CobraKiller
Atleast your harness is already stripped down. His is FULL factory.
Remember the 20lbs of copper your stripped out over here? LOL.
Hahahahaha, true, I really need to do the same to the engine harness before I bring it all in the car, that was a lot of wire I got rid of!!!!!
Old 05-04-2010 | 07:37 PM
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can you pm me where you get your tubing from?
Old 05-04-2010 | 08:12 PM
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Looks like another badass build from you guys..

LS2formula 7sec , 98Z28CobraKiller 8sec, bonnarls1 will easily run 9sec all of these 3 builds in less than a year GREAT work
Old 05-05-2010 | 06:40 AM
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got some work done last night, got the front cover back from dave with the
bungs welded in for the turbo drains, Merize electric water-pump installed,
radiator in took some cutting to stand it up,will have pics in a little.ls2formula
went out later so i don't know what he got done i'll find out this morning.


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