If your plans include as LS as mine do the above point is an important factor as well as the oil pan concerns. I dont believe the Speed tech sub does well in those areas.
As for the AME If Jake went out of buisness that SUB would be the one I went with. It offers some of the same advantages as Jakes but not all. Still the AME is a great SUB no question. In regards to using high dollar car builders choices as a guide don't make that mistake. Their are decisions that go into those choices that have no bearing on the general public. Its a lions den so lets just leave it @ that.

We are using a LS3 (480hp) from S&P with a T56 tranny on it.

Customer wants a "LS motor, manual, go like hell, turn on dime, then stop on a dime and give him 9 pennies back" to quote....

He also wants the biggest possible tire under the back, the car has already been mini tubbed.....

You may want to talk to your client about balance between the front and rear tires....Steve had to drop down a rear tire size on Penny for the competition.

Fortuantly, all listed subs allow for a wider front tire over the stock frame...but remember balance (in more ways than one) is key to the total package.

Is 21st Century still around?

You can make a stock subframe fit whatever size tire you want with modifications. It will hold air ride shockwaves, and coilovers (via DSE). Like Stuart we've built DSE speed stuff on a stock unit, air ride on a stock unit, DSE subframe with air ride, Both C4 and C5 wayne due's.

My personal opinion is how good of a driver is the owner? We're not all Kyle or Dave so is the expensive of a DSE, AME, Speetech, etc subframe worth it on a build? Will it make the car more desirable when it's time to sell? Will the owner be using the car to autocross, track, etc? My car my money the DSE unit just looking at it you can tell an "engineer/driver" designed it. The others just don't look quite as beefy or designed to be beat on (my opinion).

The goal of any build is to make the customer's dreams a reality! The building process is a huge learning experience for the owner so giving them the proper information to make decisions is paramount in my book.

He also wants the biggest possible tire under the back, the car has already been mini tubbed.....

Put MIKE'S (MCC) deep tubs in you get another 2.5 INCHES of tire clearance ..
Mario

Mike doesn't really have them labeled as "Deep Tubs" does he? :_paranoid

I watched Jake run his car and he runs HARD
He was running his street car faster then the full race cars in his class :yes:
It was fun watching a 69 Camaro smoke by a Z06 .... It's obvious Jake did a lot of research on his frames :thumbsup:

There are fortunately multiple choices. Everyone has there biases, which makes the world go around. Go take a ride in all these choices, see if your engine, brakes, drive system, etc. works with your choice and enjoy your car. All good here in the neighborhood.

If I can get three of you to do a road trip and we can suck up all the rain, I'm down for that :P

Well said Stuart! :cheers: