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> calling v8 powered racers, looking for a little guidance
returf
post Jan 10 2015, 01:52 AM
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I know there are a few of us with v8 powered 914 racers so I will put this to you for any info you may be able to help me with. With my first test sessions, I felt as if the rear of the car wanted to come around on light throttle through transition in corners. I have toe in on the rear and toe out (1mm total) on the front. Great turn in. My track was 90 mm wider at the front than the rear so thinking this was contributing, I modified the front suspension today to narrow the front track and are now sitting 30mm narrower at the front than the rear. I'd be interested to hear from others as to their set-ups. ( if its a real secret you can PM me haha. Any help from guys with a similar setup would be appreciated
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veekry9
post Jan 10 2015, 02:16 PM
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Neato.
Triangulated DOM tube cage that ties into the spring perches and trailing arm pivot.
The bottom of the cage is tied into the longs with rectangular feet to spread the load to the sheetmetal.
It appears that the inner longs have been doubled with braked sheetmetal angle to add stiffness.
Transverse tubes tie the front of the cage at the top and bottom windscreen height.
I assume the cage was tested for torsional stiffness prior to installation.
I am seeing a single tube running forward from the cage.
https://www.google.ca/search?q=full+race+ro...ved=0CAYQ_AUoAQ
A look at the trailing arms should reveal a heavily modified pivot tube and box section,tho the inner console appears to have no doublers.

What brand of LSD do you use in the Soobee6 TX and at what load does it lock up?
The turbomotor is an impressive V8.Inconel exhaust valves?What pressure is it limited to?I am liking it,have you drysumped it with a wide pan?
https://www.google.ca/search?q=drysump+oil+...ved=0CAYQ_AUoAQ

Have you mounted cams to study the chassis in race conditions?A good ytub of a few races would demonstrate the chassis's dynamics.
I'm laid up with a buggered knee and have all kinds of time to do things I like doing.Such as lurk on motoring boards and scribble in the sand.
I gotta ask tho,what class are you running,it looks all-in and making some big power.
http://www.tauporacetrack.co.nz/
Is there enough dough there to run a simulation of the tracks you run at.Do you have any hard data?
Your ecu is pumping out the engine streams,consider mapping the chassis.
Where is your centroid of mass?How does the racer balance.Roll centers front and back and the camber gains.
http://www.fiero.nl/forum/Forum3/HTML/000116-30.html
Some details of geometry.
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returf   calling v8 powered racers   Jan 10 2015, 01:52 AM
veekry9   What have you done to stiffen the chassis?From new...   Jan 10 2015, 05:35 AM
Mike Bellis   We need to know more about your setup. Wide body o...   Jan 10 2015, 11:11 AM
returf   OK. the car is widebody, but will now be slightly ...   Jan 10 2015, 12:44 PM
returf   If you had the time , I have a build thread fro...   Jan 10 2015, 12:56 PM
veekry9   Neato. Triangulated DOM tube cage that ties into t...   Jan 10 2015, 02:16 PM
Racer Chris   Add 30mm more rear tire to the outside to fix the ...   Jan 10 2015, 02:36 PM
r_towle   Arbs fully adjustable? What is that? Have you corn...   Jan 10 2015, 06:23 PM
Mike Bellis   Based on the offset of the front wheels, you have ...   Jan 10 2015, 09:00 PM
Chris Pincetich   most of the best race car tips get shared in the f...   Jan 10 2015, 11:49 PM
drive-ability   Nice Car ! Nice to see the club members he...   Jan 10 2015, 11:55 PM
messix   less rear bar. or less rebound dampening in rear ...   Jan 11 2015, 02:25 AM
returf   less rear bar. or less rebound dampening in rear...   Jan 11 2015, 02:46 AM
returf   Veekry9;The inner console does have doublers as we...   Jan 11 2015, 02:41 AM
Racer Chris   ... spring rates are 6kg/mm and 8kg/mm ... That...   Jan 11 2015, 07:02 AM
returf   ... spring rates are 6kg/mm and 8kg/mm ... That...   Jan 11 2015, 12:04 PM
Downunderman   Its all in the diff. That's where I would be ...   Jan 11 2015, 03:29 AM
veekry9   Its all in the diff. That's where I would be...   Jan 11 2015, 08:43 AM
Mike Bellis   Did you have the car corner balanced?   Jan 11 2015, 12:14 PM
returf   Did you have the car corner balanced? Just roug...   Jan 11 2015, 12:51 PM
messix   is that with you in the car?   Jan 11 2015, 12:59 PM
returf   is that with you in the car? yep, with me in it   Jan 11 2015, 03:29 PM
messix   regardless you need to add some more preload to th...   Jan 11 2015, 01:09 PM
veekry9   Like what you did with the 2+2.Immaculate in bla...   Jan 11 2015, 02:37 PM
returf   Like what you did with the 2+2.Immaculate in bl...   Jan 11 2015, 03:34 PM
veekry9   That's a work of art and wouldn't be out...   Jan 11 2015, 03:38 PM
returf   That's a work of art and wouldn't be out o...   Jan 13 2015, 02:42 AM
veekry9   Just read through the club/paddock post and see yo...   Jan 11 2015, 04:27 PM
wndsrfr   You noted that "problem only on trailing thro...   Jan 11 2015, 07:07 PM
veekry9   A link to a Northstar DOHC 32V + G6 TX install. Im...   Jan 12 2015, 05:01 AM
veekry9   Thanks. Machinist since '71, farmhand way befo...   Jan 13 2015, 03:09 AM


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