Crawford Performance Turbo Kit
 

Okay so I've been doing some research over the past couple months regarding where I want to go with the car. Everything I've done so far has been aesthetic because I want to make sure I know what my end goal looks like before I start doing anything. I know I'm doing turbo instead of SC, and I'm currently working on new exhaust and clutch before I make a final decision.

One thing I have yet to see much information on is the Crawford twin scroll.. Does anybody have any experience with this kit? 450HP on E85 and 430HP on pump gas... Obviously I wouldn't want that much on the stock motor but that's pretty damn appealing.

I did a quick search for some threads but haven't found anything, sorry if I missed something.

Basically, if you know anything about this kit, what are the pros and cons besides the obvious reduction in turbo lag from the twin scroll? Worth the $7k before installation, or should I just forget it?

Choose another kit.

498whp on e68 and 425whp on 91 pump with @FullBlown kit. Crawford has a built engine as do I just to be fair.

If you don't want that much power how much do you want? There are a lot of kits for all different power levels.

It's just way too much money for what you get. They include a fancy $700 Inconel heat blanket for the header but the rest of the kit is pretty basic and uses a relatively inexpensive IHI VF36 turbo. It's a neat idea and I think would be a good setup if it was $2500-3K cheaper. You are also stuck with a header with a flange which makes it impossible to go to any other turbo.

You would be better off with pretty much any of the other kits out there.

Makes sense, thank you.

I'm still wrapping my head around all this. I want lots of power but I don't want to spend $20k on having to upgrade everything else just to fit the turbo or keep it from breaking my car. I heard good things about the Crawford but it wasn't from a BRZ owner so I came here to be sure.

It's all still waaaay down the line. I'm still going to do plenty of research before I make a decision, as it will take me at least a year and a half still to get the money I need to get it all done.

I would suggest taking a ride in local FI twins to wrap your head around what a certain amount of power feels like.

Lots of power and reliability are going to cost you. I'm talking 400+ power where the stock motor is hit or miss. It could last forever, it could die anytime. There isn't really a set known limit. Most issues have been tune related more than anything because the compression ratio requires a spot on tune. My setup now at 380whp is fast, but it gets boring. My new setup will make 500 but includes a built short block with 10:1 compression

Just to clear something up too, if Crawford is quoting those numbers from their own Dynapak, don't expect to be anywhere near that with the kit on a dynojet. Their dyno reads so unbelievable high, that at one point they were quoting crank HP numbers off of it.

Example, a stock 06 STI on our Mustang makes about 200awhp, their dynapak shows the same stock STI making 300awhp.

But yes, there are definitely better kits for the money.

FBM, JDL, MAP, Treadstone, soon to be (hopefully) Full Race, will make those goals. I would say shoot no more than 300-320 whp on pump, you can push 400 on E85 if youd like, anymore than that youll start to need a shortblock.

Dont forget the other components to the system as well, the stock tranny will not hold 3-400 whp indefinitely, even with an upgraded clutch people have been sheering gears faster than I can sheer a sheep (I cant sheer a sheep, I just wanted to say that lol).

Adding gobs of horsepower to any car that wasnt designed for it, will have negative implications on other major parts and supporting mods.

Reliable, gobs of hp, cheap.

Choose two.

Wish I had some locals around here lol. The only ones I've seen are driven by teenage girls, plus a BRZ owned by a guy that works at an E-Cig shop but mine is more modded than his.



So basically what I've taken away from this is that Crawford isn't the way to go. You've all been really helpful. Price really isn't an issue for me, but I don't really want to end up having to rebuild the motor, change the block, et cetera et cetera. 300HP is honestly good enough for me if it means little effort. I don't race or track my car, I just want it to be fun for those few moments where I have someone breaking their neck looking at my car lol.

If you arent looking for much more than 300 whp, I would reccomend the FBM base kit.

Check out the fullblown, prime motoring, p and l, and MAP owners threads. I chose fullblown. Prime looks like an awesome company as well. Map is underrated and underappreciated around here since they were a little late to the party but make a great kit and constant community support.

Dont expect over 320whp on 93 without putting in pistons. 500+ is possible on e85 but the engine is getting beat up north of 400-450whp. The manual transmission does not like power over 500. If you have sticky tires and track it you could bust it at 400whp depending on how much torque you make.

A gtx28 turbo making 300+ on 93 and 400 on e85 is about as well rounded as you can get without putting in pistons and worrying about the drivetrain. Dont forget an oil cooler, gauges and ecutek.

Crawford showed up with a sky high price then quoted some high at the time hp numbers on a cheap almost proprietary turbo on a funky dyno using a shortblock they WILL NOT SELL to the public (yes their test and race car has rods in it they wil not sell due to install difficulty) and then disappeared from the forums.