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Search: Posts Made By: edfishjr
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Forum: Autocross
05-19-2019, 11:52 PM
Replies: 37
Views: 2,626
Posted By edfishjr

Nice run you did there. And kind of brave of you...

Nice run you did there. And kind of brave of you to post Bostic's run along with yours... he's really so good. I wouldn't want to critique your run... just compare to Bostic. Maybe notice the extreme...
Forum: Autocross
05-15-2019, 01:45 PM
Replies: 63
Views: 6,886
Posted By edfishjr

See Autocross To Win on-line for advice on how...

See Autocross To Win on-line for advice on how stiff an autocross car should be. (In the neighborhood of 2.2HzFront/2.5HzRear) Requires knowing some data & measurements and plugging values in to...
Forum: Autocross
05-13-2019, 10:44 AM
Replies: 13
Views: 733
Posted By edfishjr

Experimentation example on new-build ES 944 on...

Experimentation example on new-build ES 944 on Rival-S tires:
Co-driver (lots of 924/944 experience) and I started at 26 psi all around. (This is a balanced car, not a 911!)
Then we went to 28,...
Forum: Autocross
05-12-2019, 10:13 AM
Replies: 14
Views: 867
Posted By edfishjr

Thanks.

Thanks.
Forum: Autocross
05-11-2019, 11:55 PM
Replies: 14
Views: 867
Posted By edfishjr

I've seen the A052 listed with a as-molded tread...

I've seen the A052 listed with a as-molded tread depth of both 6/32 or 7/32, neither of which would be legal in Street class?

Edit: the rules states 7/32 minimum, not "more than 7/32" which is...
Forum: Autocross
05-10-2019, 12:41 PM
Replies: 13
Views: 733
Posted By edfishjr

Get a portable pump or reservoir, an accurate...

Get a portable pump or reservoir, an accurate gauge, listen to Burglar and then experiment.

if itĺs a hot day you may need a water sprayer to cool the tires. RE71R easily overheat , especially...
Forum: Autocross
05-09-2019, 08:59 AM
Replies: 37
Views: 2,626
Posted By edfishjr

Congrats on the bump-class win!

Congrats on the bump-class win!
Forum: Autocross
04-26-2019, 02:25 PM
Replies: 148
Views: 15,880
Posted By edfishjr

https://cimg3.ibsrv.net/gimg/rennlist.com-vbulleti...

https://cimg3.ibsrv.net/gimg/rennlist.com-vbulletin/720x403/17s_right_copy_17e09a1e78f52b32eb21920e5e2df7ffefdd3263.jpg
I'm no longer a member of the Tiny Rivals club.

These 17s seem huge. 9bs...
Forum: Autocross
04-25-2019, 02:05 PM
Replies: 148
Views: 15,880
Posted By edfishjr

245/40 on 7 and 255/40 on 8, RE71R Bridgestones....

245/40 on 7 and 255/40 on 8, RE71R Bridgestones. Badly scuffed-up 17" Cup 1's I got cheap that I'll plasti-dip glossy white.
Tire guy said only slightly more difficult to mount than normal. Didn't...
Forum: Autocross
04-24-2019, 09:25 PM
Replies: 6
Views: 702
Posted By edfishjr

I haven't found anything better than reusable...

I haven't found anything better than reusable vinyl.

-I think one big panel is easiest to handle and keep clean, but this may depend upon the curvature of the door
-I tape the leading edge with...
Forum: Autocross
04-18-2019, 07:55 PM
Replies: 148
Views: 15,880
Posted By edfishjr

The Grenada Pro-Solo was disappointing, but...

The Grenada Pro-Solo was disappointing, but instructive. Saturday was a flood and I didn't have Contis. I must have been the slowest car in the entire event. Sunday I had 4 dry runs before rain...
Forum: Autocross
04-17-2019, 08:19 PM
Replies: 37
Views: 2,626
Posted By edfishjr

This is a tough question to answer. Most would...

This is a tough question to answer. Most would say that track-days are much harder on the car because:

1) Brakes get much hotter and get much more work on the track. Porsches generally have very...
Forum: Autocross
04-17-2019, 02:08 PM
Replies: 37
Views: 2,626
Posted By edfishjr

I agree completely with your plan. the autocross...

I agree completely with your plan. the autocross is the place to safely learn at-the-limit car control.

Most of us autocrossers would say you are way too much under control! (and not nearly tight...
04-11-2019, 12:00 AM
Replies: 1
Views: 604
Posted By edfishjr

I see you did not get any replies. (I was...

I see you did not get any replies. (I was searching for 993 MRs for a friend. No reliable data on MRs there either.)

I'll offer a few comments, engineer to engineer:

1. If you want to know the...
Forum: Autocross
04-07-2019, 05:38 PM
Replies: 37
Views: 2,626
Posted By edfishjr

This run in the 1989 944 was good for the local...

This run in the 1989 944 was good for the local E-street win against a bunch of pretty fast Miata drivers and 4th PAX of 107.
https://youtu.be/WPBSmJUPPSs
Forum: Autocross
04-07-2019, 12:00 AM
Replies: 148
Views: 15,880
Posted By edfishjr

Update on engine: bore scope shows all 4...

Update on engine: bore scope shows all 4 cylinders have coolant intrusion to some extent. The good news is no white smoke, no overheating, no visible water in oil, engine runs fine, was unable to...
04-03-2019, 07:41 PM
Replies: 25
Views: 1,688
Posted By edfishjr

If this is your first track-day ever (sounds like...

If this is your first track-day ever (sounds like it) then you'll be fine with shocks not at full stiff.

As you get faster you will find that any suspension that is not uncomfortable on the...
Forum: Autocross
04-03-2019, 07:18 PM
Replies: 10
Views: 859
Posted By edfishjr

I've had two relatively powerful cars that both...

I've had two relatively powerful cars that both were bad about wheel-hop on launch as delivered from the factory. In both cases the wheel-hop disappeared after I installed shocks with increased...
04-02-2019, 03:44 PM
Replies: 5
Views: 539
Posted By edfishjr

S2 has only 1 sensor.

S2 has only 1 sensor.
04-01-2019, 03:32 PM
Replies: 7
Views: 517
Posted By edfishjr

That was an interesting thread! Car running good...

That was an interesting thread! Car running good now?
04-01-2019, 12:51 PM
Replies: 4
Views: 778
Posted By edfishjr

The rear spring rate is calculated by adding the...

The rear spring rate is calculated by adding the T-bar rate to the coil-over rate adjusted for motion ratio.

1) the torsion bar rate is a 1:1 wheel rate. So, if you have 175lb/in T-bars you have...
04-01-2019, 11:55 AM
Replies: 7
Views: 517
Posted By edfishjr

Plugs look good, no deposits, good color, but...

Plugs look good, no deposits, good color, but only a few hundred miles on them. Piston has healthy carbon deposits in the middle but clean near the edges, just like I've seen in videos of before and...
04-01-2019, 10:35 AM
Replies: 7
Views: 517
Posted By edfishjr

Thanks for the reply. I've noticed none of those...

Thanks for the reply. I've noticed none of those issues presently.

Cold coolant level definitely low this morning.
04-01-2019, 09:33 AM
Replies: 7
Views: 517
Posted By edfishjr

Blown head gasket?

Opinions, please!

Well-cared for 1989 944 (2.7 liter) with 130K miles, all stock engine, just put back on the road after being up for 2 years.

Car is running and I've been auto-crossing it....
Forum: Autocross
04-01-2019, 12:56 AM
Replies: 148
Views: 15,880
Posted By edfishjr

Good news and bad. I took the car to a...

Good news and bad.

I took the car to a friend's house today for engine health checks. Compression was good at 200, 200, 205 & 205.
Leak down was ok also at 6%,4%, 6% & 9% (#2).

As I'm putting...
Showing results 1 to 25 of 426
 


 
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