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Dilemma: Will turbo make 1st gear useless for autocross?

Old 03-25-2015, 03:07 PM
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Originally Posted by M.Adamovits View Post
Fun fact: Shifter karts used to dominate many autox circuits, until most sanctioning bodies added rules like "vehicle must have suspension" and other to rule out shifters without saying no shifters.
They still do. They have their own class in SCCA, they're fun to watch, especially when they finally go beyond their ability to catch a slide at 60 mph, which is quite easy.

But seriously, OP's course blows. I'd rather spend my money on a single speed kart, and, you know, just go kart racing. W2W karts that only go 45mph would be way more fun than autoxing that, assuming a club exists to run with.
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Old 03-25-2015, 03:26 PM
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^^ Agreed. Either run what you have to learn how to drive YOUR car better, upgrade your car to make YOU happy on the roads YOU drive everyday and learn to drive that, or spend your money on a kart and learn the principals of driving fast with the best platform for that specific venue.

I drive with Windy City Miata Club in the suburbs of Chicago and we have a parking lot that we autocross on that is notoriously technical but I spend most of my event in 2nd, sometimes third gear.
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Old 03-25-2015, 03:33 PM
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Originally Posted by dasting View Post
They still do. They have their own class in SCCA, they're fun to watch, especially when they finally go beyond their ability to catch a slide at 60 mph, which is quite easy.

But seriously, OP's course blows. I'd rather spend my money on a single speed kart, and, you know, just go kart racing. W2W karts that only go 45mph would be way more fun than autoxing that, assuming a club exists to run with.


Did not know. That's even better.
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Old 03-25-2015, 06:16 PM
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Originally Posted by dasting View Post
If this is the only course you have I would stop modding your miata and just buy a damn kart.
Yea 1st gear autocross is not so much fun. Steering inputs on a course that requires you to go that slow just get ridiculous and harsh and the wonderful feeling of controlling and dancing with vehicle dynamics and tire slip angles just goes out the window.
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Old 03-25-2015, 06:25 PM
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MS3 + Boost by Gear + 4 psi wastegate spring
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Old 03-25-2015, 06:27 PM
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Originally Posted by Hinano View Post
t25 spools from around 3k no?
I have >0psi before 2000rpm, 7psi by 3100rpm.
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Old 03-25-2015, 07:05 PM
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You will not have a difficult time spooling your turbo in 2nd on that course unless you're driving like your sister's friend's dead grandmother.
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Old 03-25-2015, 08:02 PM
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Originally Posted by M.Adamovits View Post
Fun fact: Shifter karts used to dominate many autox circuits, until most sanctioning bodies added rules like "vehicle must have suspension" and other to rule out shifters without saying no shifters.
Does this count as suspension?

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Old 03-25-2015, 08:09 PM
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That has to be a drag car.
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Old 03-25-2015, 08:11 PM
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Whatever it is, I'm fascinated with it.
Love looking at crazy suspension setups.

Looks like it allows for about a quarter inch of travel though? tops
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Old 03-25-2015, 08:25 PM
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I'd say, but I'm no official.

And as others said, it looks like a drag car..
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Old 03-26-2015, 01:41 AM
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Originally Posted by Schuyler View Post
I have >0psi before 2000rpm, 7psi by 3100rpm.
What happens between 2-3?
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Old 03-26-2015, 02:15 AM
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I think maybe boost builds...?
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Old 03-26-2015, 02:22 AM
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Originally Posted by Hinano View Post
What happens between 2-3?
It'd probably look a little something like the red line, blue line, or yellow line. Not sure which.

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Old 03-26-2015, 02:23 AM
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Yellow line looks like mine.

Please tell me you just drew that.
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Old 03-26-2015, 02:27 AM
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Here's the thing.

I've seen people who have considerably less resources successfully turbo their car.

I've seen people more clueless than you who successfully turbo their car (read: dropped they car off someplace with a blank check).

But from where you are right now, your combination of cluelessness and lack of resources does not look promising.

You really shouldn't be touching this thing right now. You need to do a lot more reading and learning first.

Then again, you'll likely only destroy this car about as much as I destroyed my Saab Turbo and Merkur (read: both ended up parted out by the next owner).
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Old 03-26-2015, 02:29 AM
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Originally Posted by aidandj View Post
Yellow line looks like mine.

Please tell me you just drew that.
I use my Galaxy Note tablet for very important diagrams like the one shown above.
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Old 03-26-2015, 02:37 AM
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Nice, I hoped it was an mt.net original.
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Old 03-26-2015, 02:51 AM
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Side note, I need to get this 7psi IWG sorted out.
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Old 03-26-2015, 10:18 AM
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how about just build a car and not worry about the autox track.
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