Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

5 Pages V < 1 2 3 4 > »   
 Reply to this topicStart new topic
> Splitter, they sell these at Home Depot now...
Trekkor
post Oct 24 2006, 04:15 PM
Post #21


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I did a quick little test drive. Not too fast.

It felt great, but it does scrape the bolt heads underneath a tiny bit when hard braking.

I'm very curious to see how it feels at top speed. (IMG:style_emoticons/default/idea.gif)

I know the 22#'s sounds heavy, but putting it in perspective, that's the weight of less than three gallons of gas.

( trying to justify )


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Rough_Rider
post Oct 24 2006, 04:20 PM
Post #22


Smurf Zone
***

Group: Members
Posts: 525
Joined: 16-August 04
From: Beaverton, OR
Member No.: 2,547
Recomended height varies from track to track, track temperature, spring rate, etc.

However i'd recomend basing the initial height on your current sweeper dam. If it doesn't ground out then set it there.

Two suggestions
1. Make it height adjustable by slotting the mounting holes, or just drill another set of holes.
2. If you need it ultra low you can get good benefits from a sweeper lip at the leading edge of the splitter. Flexible rubber (so long as its 0.5"-0.75" shouldn't deform to much) or harder plastic would suffice.

Keep an eye on temp gauges. Some folks have warned of higher temps due to less airflow under car. Maybe we'll all need snorkels in the future (IMG:style_emoticons/default/biggrin.gif)


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Oct 24 2006, 04:21 PM
Post #23


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
I'm thinking about the car moving down when at speed. You have to compensate. Raise it 10mm's in the front. You can lower the rear also. I notice in one of the other pics the rear seemed high. Good corner weights start with the body 1inch above the top of the rear rim at rest.

B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 24 2006, 05:13 PM
Post #24


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
OK...Good.

I'll try some adjustment tomorrow afternoon when I have some time.

As far as setting the rear, is that the rear fender lip 1" above the top of the rim? I'm not totally clear on that.

thanks...


Trev, I can't adjust the height of the splitter on the car with slots.
I'd have to cut material off the lower edge of the rubber skirt.
then there is no going back.

Yes I've seen that lower sweeper off the splitter treatment.
My Mustang racer friend has that on his car.

KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
turboman808
post Oct 24 2006, 05:23 PM
Post #25


Advanced Member
****

Group: Members
Posts: 2,718
Joined: 31-January 06
From: North Jersey
Member No.: 5,505
Region Association: North East States
That's pretty low you driving that on the street at all?

I can see it now car starts draging the ground when ya get going over 120!!!

Also I thought the car got air from above and pushed it towards the ground. Also may want to consider removing the rear valance and muffler to get more air moving out from under the car.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 24 2006, 06:30 PM
Post #26


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
No driving on the street with this one. I'll switch to the LE for what limited street driving I do.


I have no rear valence and I am running dual glasspack/megaphones so the air moves well back there.

Also, I may have to modify my approach to pounding the track berms.
My curb surfing may need to be controlled... (IMG:style_emoticons/default/unsure.gif)


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Rough_Rider
post Oct 24 2006, 06:38 PM
Post #27


Smurf Zone
***

Group: Members
Posts: 525
Joined: 16-August 04
From: Beaverton, OR
Member No.: 2,547
BTW Trek i think this is a brilliant solution. (IMG:style_emoticons/default/driving.gif)

Let us all know how it goes.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Thorshammer
post Oct 24 2006, 10:04 PM
Post #28


Senior Member
***

Group: Members
Posts: 749
Joined: 11-November 03
Member No.: 1,335

Great job,

Looks good. I tried a type of splitter like this, and found problems with handling. Youwill have the best luck if you have something else on the back to balance it out.

I could not get it to work. Push here, oversteer there. No balance.


Erik
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 25 2006, 12:40 AM
Post #29


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I'm going to try my best to make this work for me.

If it's a bust, that's OK, too. I had a good time foolin' around in the backyard. (IMG:style_emoticons/default/smile.gif)

One more point of interest regarding wieght:
A 200# passenger costs me 1-2 seconds on the big track or a 1 minute a/x run.

I'm not too worried about this 22#'s if it yields "perceived" better handling...ha ha. (IMG:style_emoticons/default/biggrin.gif)

KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Oct 25 2006, 03:26 PM
Post #30


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
It is weight that is not supported between the axle centerlines. It is a "little" different than weight between the axles.

I'm not concerned about the weight.


B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 25 2006, 09:15 PM
Post #31


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I was able to make my ride height adjustments.

I'm now at 4.5" at the front doughnuts from 4".

In the rear, it's 1.5" from the top of the rims to the fender wells.
That's the lowest I can go with my 10" springs on "Ground Control" adjustable perches.

I won't likely have time for another road test.
I'm 95% likely going to TH on Friday for a full day DE followed by the GGR a/x at Alameda on Saturday.

I should know something by then, huh?

I'll have the spare LE dam along, too, just in case.


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
nebreitling
post Oct 25 2006, 09:20 PM
Post #32


Member Emeritus
****

Group: Members
Posts: 3,314
Joined: 26-March 03
From: San Francisco
Member No.: 478
trek, don't waste your time on ride height adjustments until you get your car on scales. do it once, do it right...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 26 2006, 10:18 PM
Post #33


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I'm trailed up and packed for TH.

I added the turnbuckle supports to the splitter.


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Randal
post Oct 27 2006, 12:20 PM
Post #34


Advanced Member
****

Group: Members
Posts: 4,446
Joined: 29-May 03
From: Los Altos, CA
Member No.: 750
QUOTE(trekkor @ Oct 24 2006, 05:30 PM) *

No driving on the street with this one. I'll switch to the LE for what limited street driving I do.


I have no rear valence and I am running dual glasspack/megaphones so the air moves well back there.

Also, I may have to modify my approach to pounding the track berms.
My curb surfing may need to be controlled... (IMG:style_emoticons/default/unsure.gif)


KT



Surfing is OK, but strongly suggest you inspect your suspension ears and surrounding suspension areas after each outing.

I broke mine at TH surfing.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Oct 27 2006, 02:33 PM
Post #35


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
QUOTE
trek, don't waste your time on ride height adjustments until you get your car on scales. do it once, do it right...


He called me from Sears..

Was glad he raised the car 1/2 inch in the front. The splittler is dragging the hardware in several places and it would have been REAL bad if he hadnt raised the car (IMG:style_emoticons/default/biggrin.gif)

I gave him a good starting point. These cars really dont differ that much when it comes to cross weights. I had NO idea his car hadnt been cornered until I saw the Laguna pics. I thought you had helped him with that way back.. then he calld me a week or so ago and told me he had my scales..LOL



B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 27 2006, 10:49 PM
Post #36


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
QUOTE
He called me from Sears..


actually, I was at TH. (IMG:style_emoticons/default/dry.gif)

I got my 2:15 fast lap time with turn five, "over the top".

I few of the bolt heads on the underside of the Sweeper Splitter™ are completely worn away. Other than that, no problems. All the fasteners held tight and the car felt very stable and tight to the ground.


I'll countersink the underside fasteners when I have some free time.


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
maf914
post Oct 30 2006, 12:59 PM
Post #37


Not a Guru!
****

Group: Members
Posts: 3,049
Joined: 30-April 03
From: Central Florida
Member No.: 632
Region Association: None
You need some titanium skid blocks under the splitter. (Call alpha for titanium.)The Formula 1 teams used to use them in the old days to reduce wear on the under-bodies. The make big sprays of sparks when they drag on the pavement. Very intertaining. (IMG:style_emoticons/default/laugh.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 30 2006, 01:08 PM
Post #38


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
QUOTE
(Call alpha for titanium.)



PM sent... (IMG:style_emoticons/default/biggrin.gif)


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Matt Meyer
post Oct 31 2006, 02:38 PM
Post #39


Überlurker
**

Group: Members
Posts: 216
Joined: 2-December 03
From: Eastern Washington
Member No.: 1,411
Region Association: Pacific Northwest
To save weight why not make it out of foam board and a little thicker glass?

You just made a composite beam. That has got to be tough as nails. Most of the strength is probably comming from the f-glass anyway.

Just an idea for rev. 2.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Trekkor
post Oct 31 2006, 04:48 PM
Post #40


I do things...
*****

Group: Members
Posts: 7,809
Joined: 2-December 03
From: Napa, Ca
Member No.: 1,413
Region Association: Northern California
I still have the template (IMG:style_emoticons/default/idea.gif)


KT
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · The Paddock · Next Newest »
 

5 Pages V < 1 2 3 4 > » 
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 7th May 2024 - 07:15 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...