With the intake aqnd exhaust done at the same time (you'll need to do them to take advantage of the other mods) you'll probably gain 40-50hp. The forged parts will only buy you some durability, not performance, and Turtle is a living example of what the stock 'block' parts are capable of. You're still in the range of the 4T60, and your PCM wouldn't know what to do with a 4T65E, so if you plan on a trans swap, just go for the 4T60-HD out of an SSEi. Great tranny, and takes a ton of abuse (trust me on that one).

:?: If I keep the engine, I can just rebuild it. Here'* the simplified and less costly alternative for the upgrade:
1. Rebuild the engine with supercharger engine internals (ported and polished heads, etc).
2. Ported MAF opening.
3. Replace the headers with Ceramic Ported Headers.
4. Rebuild the 4T60E tranny or get the 4T60-HD tranny.
5. Replace the exhaust system.
6. Maybe bet a custom chip.

I think that'* the most I can do without replacing the drivetrain. I'd like to know the make, part numbers and pricing for the exhaust system. What'* a good performance hiflow catalytic converter and muffler? Does anyone have a good system with the split before the muffler (similar to the new SSEi and Caddy Seville STS)?

Sounds like a good plan. Lean towards the HD tranny if you can, and the SSEi exhaust doesn't split until AFTER the muffler.

How about adding a turbo onto the engine? I know some people were playing around with the idea this winter, but would that be feasible without replacing the tranny (I might have to replace mine soon anyways, I have almost 140k miles on my car). If a turbo works, that might get you close to the 300hp mark.

It'* not an idea, its a reality. It'* getting built piece by piece, all of our ADTR cars are going to be turbocharged except for 2. The ZZP CSC Kit makes 300HP crank easy. Turbo would do the same and at a lower rpm.

Even us that have trannys above 100k miles??? (Mine has about 140k). Are they gonna be free, or how are you going to make sure that all of us have one.

Macho,

Not all MEMBERS cars will have it, he is refering to all the test vehicles he is currently using for R&D. He is in business to make money, so he is putting them on his test vehicles before it goes to market.

The centrifugal sc is a great way to go and you can get much more than 300hp. It depends on your engine build. For the path of least resistance you are looking at a centrifugal sc and a tranny upgrade. Yes the transaxle I offer will eat the 400hp range no problem and with a limited slip you will scare stock vettes. You can increase "flow" to your current engine but it won’t really perform without some sort of increase from a sc or turbo. Ok NOS will push it too. I offer the same porting and polishing of exhaust manifolds yes thermal coating too.

For crazy hp a N* swap is awesome but not the cheapest option.

I have an upper sheet metal intake available as well so you can be sure your engine will hold together.

Ty

But don'y you need to upgrade the pistons and rods for the centrifical unit?

Lets put it this way yes and no. If you want more than 350hp I would suggest it, but others have done it without updating the pistons. I have heard of 800hp with a full rebuild. I am not the pro when it comes to this but I do know that if you want I can also have a series one setup made.

I started doing this for many of the same reasons you have and I have spent 3 years now researching this engine and car and the "big picture". The engine is made in a some what sloppy manner so once any of the engines put out by GM are modified they have a greater chance of problems but the series 2 that I have has been abused to the enth degree and the heads never warped the gaskets never went and I mostly spun bearings and blew transaxles. So found the transaxle solution and the rest is also available. I tried the cheap rout and you can get away with it but in the end it pays to spend the money up front. bla bla bla

So buy a CSC and start off mild stock then go out buy the rebuild parts and rebuild a cheap core then turn up the power until you blow the stock engine LOL. You will be surprised how long it lasts. The point is this 6 can put out more than enough hp for the average street racer.

If you want tunable easy torque and power the v8 can be done and smoged in all states. It is more expensive but it is built by a pro. Everything is made perfect and professionally fabricated. $15000.00 with a sc is a awesome deal for this kind of service. BUT it depends on your needs.

I also offer Rwd conversions...Basically as I have said before I connect you with the builder and I sink my time and money and so does the builder. In the end you are only paying for basic materials and his time. I am waiting for the guy who wants the first RWD 92-99 Bonneville with 1000HP. That would be a fun project.


I can go on forever so if you really want to talk performance call me. 559-709-4127.
Ty