Tom Nelson Building Twin Turbo LT5

[scholtmj]

Does anyone know anything about this buildup?

http://www.nelsonracingengines.com/v...niversity.html

Polished block, 377 cubic inches, attention to detail is amazing. I thought it was interesting he put bearing spacers in the mains.

[Zr1 Destroyer]

I posted that about three months back, but I havn't seen any updates or who's car that unit made it into!?

[scholtmj]

Originally Posted by Zr1 Destroyer

I posted that about three months back, but I havn't seen any updates or who's car that unit made it into!?

Woops, didn't look back that far!

I'm curious if he makes the "normal" 1500hp with this motor or if the 4-valve heads make even more. Also very interested in what cams he's going to use and where he gets them.

[flyin ryan]

Originally Posted by scholtmj

I thought it was interesting he put bearing spacers in the mains.

That's one way to get bearings easily. potentially a little more power too.

[Jagdpanzer]

Originally Posted by flyin ryan

That's one way to get bearings easily. potentially a little more power too.

But how well will they hold up to the firing pressures involved?

[jonszr1]

from what i know about nelson racing is that they only do it the very best way possible .he has built 3 motors for me over the years and they all were very well built. 2 of them i know for fact are still running. the third i dont know where it is now .jmho

[Polo-1]

I would just like to get a set of the main studs.

I called the shop phone, and never heard back.

[carter200]

Crate Engine, LSX SS 454ci, 700 HP, Turn Key W/ECM






Part #
MMS113-402
Price: $16,995.00Sale Price: $16,495.00Your Savings: $500.00

Quantity:




Type: LSX 7.4L
Displacement: 454 Cubic Inches
Compression Ratio: 12:1
Bore x Stroke: 4.185 x 4.125
Rev Limit: 7250 RPM
Crank: Callies
Rods: Callies
Pistons: Mahle Motorsports
Cam: Mast Custom 3-Bolt Core Cam
Heads: Mast CNC LS7 Casting
Intake: GMPP LS7 Intake
Valve Springs: Manley Polished Double Springs

The LSX 454 SS’s heart and soul is the new GM Performance LSX iron block. This LSX engine family utilizes a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports LS3 cam core. The 454 SS’s foundation is a fully machined iron block with a forged Callies rotating assembly with Mahle pistons that is topped off with Mast Motorsports CNC LS7 casting cylinder heads and a LS7 intake manifold. ARP fasteners are used throughout and Manley pushrods ride on GM Cadillac High RPM hydraulic roller lifters. The LSX 454 SS is the most powerful naturally aspirated pump gas LSX block Street engine to hit the streets.

I'm afraid any of us would pucker the leather in our seats if we came across this and for only $17,000. I still love my LT5 but........

[Topfuel]

It sounds like I need to talk to this guy since 800 to 1000 hp for my street machine is what I am lloking for. My other car pegged the chassis dyno. I will have 4 cars that are twin turboed soon as I finish this project with the lt5 800 to 1000 is actullay very easy to hit. In the resurch I have done so far stock crank is good for 1000hp range. Rods for around 800hp. Have to slleve it so the cyclinder don't distort under the pressure and loose ring seal. I think these motors are so Ausome. Here is a link to a picture of one of my other twin turbo setups pegged the dyno at over 1600 at the tires
http://racingsouthwest.com/forums/in...=post&id=13466