Originally Posted by ActionJackson (Post 1759537)

I am intrigued. All these 450+ hp brzs/frs talking about fully "built engines".

I have a couple questions for the veterans.

1. What has to be done to the engine to fully build it?
typically refers to: redoing the whole internals of the motor itself{pistons, rods, cams, etc etc}

2. What's the general cost for parts and labor on building a brz engine? no idea

3. Once the compression ratio is lowerd I have my big ole turbo kit in it and my racing clutch.... It's there anything else mandatory to swap out to Handel increase in power/torque

technically, no.

4. (Off topic). Jackson racing makes a super charger for these guys and I was wondering, if it made 100 more hp and 45% more torque with no building or compression changing.... In theory would lowering the compression ratio increase output? Or is that entirely based on the forced induction kit you have on the car....



lowering the compression ratio will DECREASE the output. for the trade off of being able to run more boost.

5. If I lowered the compression ratio with no added forced induction would the car run ultra sluggish?


absolutely.

6. (Off topic). What are the stock speakers like? And brakes? It's the car super tail happy with the thin tires?


this question will get 50/50 answers. I believe the stock speakers are quite decent, brakes work perfectly fine but do fade under extreme stress. car is fine for me on stock tires, stays planted unless I tell it not to.

7. Is everything crawford did there brz really necessary? I drool over that car and I see it has 30+ grand after market in it and I feel two achieve that sort of power and race compatibility you don't need to double the price of the car.... Correct me if I'm wrong, it does seem like they've got there act straight.


keep in mind, they built a race car...it costs to race...simple as that.Could you get by with less, probably. would you be in the shop every day after a race, most likely.

Anyone and everyone feel free to answer whatever you like I'm open to all opinions and facts,

Thank you,

AJ

P.S. I'm also new to the forum and I'm glad to find a forum with so many step by step builds and avid tuners as this I look forward to posting my project once it is....well.... Purchased.....

Originally Posted by Basket Case (Post 1759692)

If you are willing to do work yourself, I think you can build a motor for around $3k...supposedly the crank is already forged and the Crawford motor uses the stock crank. You can get the rods for around $800-1000, and forged pistons for around the same pricing. There really isn't a cam option out yet, so no money spent there yet. Upgraded valve springs probably wouldn't hurt though. Also, I believe most people are lowering the compression to 11.5/1 like the the DIT motors.

Like others have said, read, read, and read. Check out the forced induction section and the engine section.

Originally Posted by misooscar (Post 1763319)

DIT?

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