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Search took 0.03 seconds. Search: Posts Made By: GrandSport
Forum: Tracking / Autocross / HPDE / Drifting 08-23-2024, 09:29 AM
Replies: 46
Views: 5,689
Posted By GrandSport
So definitely not perfect but it’s really hard to...

So definitely not perfect but it’s really hard to get 3d measurements on a curved plane. I’m not upset at all for the second try.


Big problem is I’m out of “footprint” on my 3d printer. The...
Forum: Tracking / Autocross / HPDE / Drifting 08-21-2024, 11:53 AM
Replies: 46
Views: 5,689
Posted By GrandSport
So I'm working on 3d printing something for the...

So I'm working on 3d printing something for the window sales. Not much real estate there, so I'm wondering if a full opening or NACA duct (that I could barely squeeze in there) is better.
...
Forum: Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) 08-21-2024, 11:41 AM
Replies: 4
Views: 326
Posted By GrandSport
Very helpful! Shaft detent ball is...

Very helpful!



Shaft detent ball is supposed to be in there. I'm not a MT guru so I looked it up. It's presumably loaded with a spring, so if there's no spring that fell out, the ball likely...
Forum: Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) 08-20-2024, 04:17 PM
Replies: 4
Views: 326
Posted By GrandSport
What is the Star/Torx Bolt on the bottom of the manual trans

I recently learned its not the drain bolt (although some MTF came out).

Anyone know what it is? Or if I screwed up anything by opening it?
Forum: Engine, Exhaust, Transmission 08-19-2024, 04:57 PM
Replies: 7
Views: 825
Posted By GrandSport
Multiply current RPM *4.88 and divide 4.56 to get...

Multiply current RPM *4.88 and divide 4.56 to get new rpm (or just multiply by 1.07). Not a huge change, but it's there. 6500 rpm becomes 7000rpm, give or take.

You'll also get a 7% mechanical...
Forum: Engine, Exhaust, Transmission 08-19-2024, 04:54 PM
Replies: 6
Views: 5,897
Posted By GrandSport
They're just reading at two different points. No...

They're just reading at two different points. No big deal.
I have a display off my OBD2 in my track only BRZ. It's fine.
Forum: Engine, Exhaust, Transmission 08-19-2024, 03:55 PM
Replies: 1
Views: 336
Posted By GrandSport
Undid the wrong bolt for trans fluid (bottom bolt)... issues

Man, what a day. I was sick just starting to get better (but far from 100%) so I went to the track. I decided to do a fluid swap for some reason, idk why. I had 90 min to kill so why not.

First,...
Forum: Tracking / Autocross / HPDE / Drifting 05-07-2024, 11:37 AM
Replies: 134
Views: 20,138
Posted By GrandSport
I had DS2500 in my AP enduro brakes and they were...

I had DS2500 in my AP enduro brakes and they were very hard to modulate because they had so much bite and made a TON of noise.
I understand some people love them, and I thought I did, until I tried...
Forum: Tracking / Autocross / HPDE / Drifting 04-30-2024, 01:14 PM
Replies: 8
Views: 1,640
Posted By GrandSport
If I run GP2, it's 0.051*rwhp +7.5 Assuming...

If I run GP2, it's 0.051*rwhp +7.5

Assuming 185-190rwhp, I get 16.9-17.2 gallons. I could, in theory, add 3.5-4 gallon surge tank and go from there.

After there, it's just how much we want to...
Forum: Tracking / Autocross / HPDE / Drifting 04-28-2024, 07:15 PM
Replies: 8
Views: 1,640
Posted By GrandSport
Thanks. I did some more reading and it looks like...

Thanks. I did some more reading and it looks like long left handers are the issue. My home track doesn't really have that issue but the track this race is at has two long and and fast left handers in...
Forum: Tracking / Autocross / HPDE / Drifting 04-25-2024, 02:41 PM
Replies: 8
Views: 1,640
Posted By GrandSport
That was kind of my thinking. I'm considering...

That was kind of my thinking. I'm considering adding a surge tank, but need to look and see what WRL will allow. I'm not going to race for a championship, but I'd like to do 2 WRL races a year.
Forum: Tracking / Autocross / HPDE / Drifting 04-23-2024, 07:10 PM
Replies: 8
Views: 1,640
Posted By GrandSport
Run time between pits for enduro?

Thinking of doing a last minute race and trying to figure out if I want to race the 86 or Miata. Basically wondering if I can go 1.5 hours between stops.

Car is a stock engine with a tune,...
Forum: Tracking / Autocross / HPDE / Drifting 03-28-2024, 07:25 PM
Replies: 7
Views: 2,219
Posted By GrandSport
Given its weight, you'd think its plenty,...

Given its weight, you'd think its plenty, honestly. I get a Colision with a sports car would be a problem, given it's 1/2 the weight of a Miata,


from their website:
Safety: Small doesn’t mean...
Forum: Tracking / Autocross / HPDE / Drifting 03-28-2024, 03:43 PM
Replies: 7
Views: 2,219
Posted By GrandSport
Man, that's awful and scary. I've been looking...

Man, that's awful and scary.
I've been looking at those cars. Makes me really think about the safety of them...
Forum: Tracking / Autocross / HPDE / Drifting 03-26-2024, 01:16 PM
Replies: 63
Views: 12,819
Posted By GrandSport
17x8 with 35mm offset running 245/40/17 tires and...

17x8 with 35mm offset running 245/40/17 tires and steering limiter (for brake ducts) and I just ripped out a fender liner
Forum: Tracking / Autocross / HPDE / Drifting 03-20-2024, 01:01 PM
Replies: 63
Views: 12,819
Posted By GrandSport
ah yeah, obviously, driving straight will burn...

ah yeah, obviously, driving straight will burn the insides faster than track driving with negative camber
Forum: Tracking / Autocross / HPDE / Drifting 03-19-2024, 01:17 PM
Replies: 63
Views: 12,819
Posted By GrandSport
A hair over zero. It's pretty close to zero.

A hair over zero. It's pretty close to zero.
Forum: Tracking / Autocross / HPDE / Drifting 03-19-2024, 01:16 PM
Replies: 34
Views: 5,192
Posted By GrandSport
So the rear takes 20 min to swap- how bad is the...

So the rear takes 20 min to swap- how bad is the front? Same?
Forum: Tracking / Autocross / HPDE / Drifting 03-18-2024, 03:50 PM
Replies: 63
Views: 12,819
Posted By GrandSport
Man, I'm nowhere near wearing the inside of my...

Man, I'm nowhere near wearing the inside of my 730s before the outside with the same -3.5
Forum: DIY (Do-It-Yourself) Guides 03-15-2024, 12:32 PM
Replies: 197
Views: 62,104
Posted By GrandSport
Is there a way to turn everything but ABS off...

Is there a way to turn everything but ABS off automatically on startup?
Forum: Tracking / Autocross / HPDE / Drifting 03-14-2024, 04:42 PM
Replies: 117
Views: 43,452
Posted By GrandSport
Yup, stock.

Yup, stock.
Forum: Tracking / Autocross / HPDE / Drifting 03-14-2024, 01:57 PM
Replies: 117
Views: 43,452
Posted By GrandSport
Do we need any additives for the diff? BTW:...

Do we need any additives for the diff?

BTW: this is a track only car in Texas, so cold weather driving isn't really a concern. I can't imagine either oil is cold for more than about 1 minute, the...
Forum: Tracking / Autocross / HPDE / Drifting 03-13-2024, 05:01 PM
Replies: 117
Views: 43,452
Posted By GrandSport
while we're at it- do we have a preferred trans...

while we're at it- do we have a preferred trans fluid and diff fluid? It's a trans out of a 2.4
Forum: BRZ First-Gen (2012+) -- General Topics 03-07-2024, 12:10 PM
Replies: 42
Views: 10,111
Posted By GrandSport
I think the issue is that it's a giant question...

I think the issue is that it's a giant question mark. I would imagine everyone knows it could be a bargain, and you have just as good of a car, for 30% less, or it could be a god damn never ending...
Forum: Tracking / Autocross / HPDE / Drifting 02-21-2024, 03:50 PM
Replies: 117
Views: 43,452
Posted By GrandSport
I've been going down a serious oil rabbit hole. ...

I've been going down a serious oil rabbit hole.
Does anyone have any experience using synthetic diesel oil? Ie: Shell Rotella? Their Zinc concentration is really high, and it's $23/gallon vs. about...
Forum: Tracking / Autocross / HPDE / Drifting 02-21-2024, 08:12 AM
Replies: 34
Views: 5,192
Posted By GrandSport
I think I have 608k track miles (zero street) on...

I think I have 608k track miles (zero street) on mine and I've replaced one rear (knock on wood). I cracked a wheel and my wheel bearings were fine. I think I have a little play in one wheel though....
Forum: Tracking / Autocross / HPDE / Drifting 02-20-2024, 03:30 PM
Replies: 117
Views: 43,452
Posted By GrandSport
Ah, I see. Is there some rule that something...

Ah, I see.
Is there some rule that something for cars can't be measured in a rational way?
We need to produce figures for viscosity at room temperature and operating temperature.
Definitely do...
Forum: Tracking / Autocross / HPDE / Drifting 02-19-2024, 03:00 PM
Replies: 117
Views: 43,452
Posted By GrandSport
So it thickens up as it gets hotter? How is it...

So it thickens up as it gets hotter?
How is it only "5" at cold temps and "30" at 200 degrees!?

Also, this not only doesn't follow my common sense test, but it doesn't follow my data either. My...
Forum: Tracking / Autocross / HPDE / Drifting 02-19-2024, 01:33 PM
Replies: 117
Views: 43,452
Posted By GrandSport
Yes, so why is it 5 when its cold and 30 when its...

Yes, so why is it 5 when its cold and 30 when its warm?
Thicker = higher number
cold number is lower.
Forum: Tracking / Autocross / HPDE / Drifting 02-19-2024, 12:24 PM
Replies: 117
Views: 43,452
Posted By GrandSport
Okay, I have what I bet is a really dumb...

Okay, I have what I bet is a really dumb question:

Higher number = thicker

IE: 40weight is thicker than 50 weight oil.

Okay, then why is the first number (cold temp/winter) number always...
Showing results 1 to 30 of 316
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