ADM Performance LME LSX427 AGP Twin Turbo Build

[RealQuick]

Congrats!!!

[Unavowed]

Congratulations. A build of this caliber deserves a matching pair of front Welds. Black Friday is coming..

[cbiracing]

Is there a benefit to use the 427 lsx compared to the 454?

[ADM PERFORMANCE]

Originally Posted by cbiracing

Is there a benefit to use the 427 lsx compared to the 454?

Rod to stroke ratio - Most engine builders shoot for a ratio between 1.5:1 and 1.8:1 on a street motor, with 1.75:1 considered ideal, regardless of application. (The most highly developed four-stroke engines in the world-F1 and motorcycle engines-have rod ratios of more than 2:1.


Rod ratio is the mathematical relationship between the overall length of the connecting rods and the stroke of the crankshaft. Divide rod length by the crank stroke and you get the rod ratio. For example, say you’re building a stock small block 350 Chevy with 5.7-inch rods and a 3.48 inch stroke. The rod ratio in this engine would be 5.7 (rod length) divided by 3.48 (stroke), which equals 1.64.

If you build the same 350 engine with longer 6-inch rods, the rod ratio becomes 1.72. And if you are building a 383 stroker with 6-inch rods, the rod ratio becomes 1.6 due to the longer stroke (3.750 inches).
What do these numbers mean? They express a geometric relationship between the rods, crankshaft and pistons. The lower the rod ratio, the greater the side forces exerted by the pistons against the cylinder walls. This increases wear on the piston skirts and cylinder walls, and creates a higher level of vibration inside the engine. The increase in friction can also elevate coolant and oil temperatures.

On the other hand, lower rod ratios do have some advantages. Shorter rods mean the overall height of the block can be shorter, which means the overall weight of the block can be lighter. The engine will typically pull more vacuum at low RPM, which means better throttle response and low end torque (good for street performance and everyday driving). Spark timing can be advanced a few degrees for some additional low speed torque, and the engine is less prone to detonation, which can be a plus in turbocharged, supercharged or nitrous applications.

[Scuzz]

Here comes the meth

[ZL1C7]

https://static1.squarespace.com/stat...Rod+Ratios.pdf

[camarosspower]

I see you putting in work on texas street scene lol. Nice to see that its being put to good use. A little brake boost and it would've been bad for the z

[CamaroDreams76]

Originally Posted by camarosspower

I see you putting in work on texas street scene lol. Nice to see that its being put to good use. A little brake boost and it would've been bad for the z

I was wondering if that was this car. I thought it looked familiar.

[Scuzz]

Originally Posted by camarosspower

I see you putting in work on texas street scene lol. Nice to see that its being put to good use. A little brake boost and it would've been bad for the z

We agreed he gets hit, no brake boosting and I start in 3rd not second. He still short stopped both races when I caught up.

[graf101]

You should let that RPM transmission do the work for you and leave it alone. It will burn up the clutch packs if you are manually bumping it into a specific gear.

[camarosspower]

Originally Posted by Scuzz

We agreed he gets hit, no brake boosting and I start in 3rd not second. He still short stopped both races when I caught up.

Yea I seen your comment on there

[mrimpala02]

Originally Posted by Scuzz

We agreed he gets hit, no brake boosting and I start in 3rd not second. He still short stopped both races when I caught up.

Lol!! This guy had too many terms. Clearly he was over matched wanting all that. Surprised he didnt asked you to put the stock wheel and tires on too. Lol!

You seem like a big fish in small pond. Once you get it lined out come down to H-town to put in some real work!!

[Scuzz]

ADM always making things look sexy AF.

[Scuzz]

A little bit more cooling with a little bit more power 😋