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Author Topic: Rims & tires  (Read 10270 times)
tjommi
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« on: September 24, 2013, 11:47:54 pm »

Hi. I'm new to the forum, and have a few questions regarding wheel and tire fitment on the Murena. Ideally I would like to fit 8x16 ET25 in the front and 9x16 ET20 in the back. Can anyone tell me if these  will  fit my 81 Murena? Clearance issues? Thanks in advance.
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
GP
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« Reply #1 on: September 25, 2013, 01:57:49 pm »

Hi, Welcome to the forum. Can't answer your question but this may help a little bit:

http://www.oponeo.co.uk/advice-and-tips/wheel-offset-calculator

Graham
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JL
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« Reply #2 on: September 25, 2013, 02:07:35 pm »

Hi, Welcome to the forum. Are we talking road car or track car?

John
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tjommi
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« Reply #3 on: September 25, 2013, 02:58:24 pm »

Thank you for the kind welcome. We are talking about a road/trackday car. Primarily a road/weekend-driver, but it may also see some track time.
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
matramurena
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« Reply #4 on: September 25, 2013, 10:39:29 pm »

I wouldn't go farther than 7J on the front. Steering will be worse and the chance of damaging your panels is not unimaginable.

Martijn
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1983 Matra Murena V6 (AR engine)
2003 Matra Avantime 2.0T Expression
2003 Matra Avantime V6 Privilege
tjommi
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« Reply #5 on: September 26, 2013, 07:42:34 am »

Hmmm. That wasn't exactly the answer I was hoping for Smiley I'm quite sure I've heard that Politecnic supplied rims for the Murena in 7,5x17 ET20 for the front and 8,5x17 ET13 for the back? 8" in the front and 9" in the back would look awesome on the Murena I think Grin
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
JL
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Posts: 234



« Reply #6 on: September 26, 2013, 09:09:18 am »

Hi Tjommi

For a road car I think Martijn is being generous at 7".  The Murena is so light at the front I would use a 6" rim, with a large tyre footprint in the wet the car will be an absolute dog and in the dry will skip around every undulation and white line on the road but no a very smooth track not so bad.

Regards
John
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Jon Weywadt
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« Reply #7 on: September 26, 2013, 09:13:52 am »

Hmmm. That wasn't exactly the answer I was hoping for Smiley I'm quite sure I've heard that Politecnic supplied rims for the Murena in 7,5x17 ET20 for the front and 8,5x17 ET13 for the back? 8" in the front and 9" in the back would look awesome on the Murena I think Grin
Welcome to the forum.  Grin
You would need a body kit to widen the fenders or the tires would rub. Also need spacers since the stock wheels only have about 1/2" clerance to the rear swingers. But it could be done.  Cool
John is right though about the front tires. Not enough weight to keep contact on wet road if too wide tires.
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Matranaut par excellence Cool
tjommi
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« Reply #8 on: September 26, 2013, 11:46:13 pm »

Guess I'll start looking for a new set of rims then...  Smiley So you guys think I'll be alright if I find a 7" rim with about 30 offset? How about size? Will 17" be ok, or should i stick to 16" or below? I don't mind a harsh ride Grin My Forester daily driver is rolling on Impreza STi suspention and 18", so I'm used to a stiff ride Tongue
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
Jon Weywadt
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« Reply #9 on: September 27, 2013, 12:10:47 pm »

Guess I'll start looking for a new set of rims then...  Smiley So you guys think I'll be alright if I find a 7" rim with about 30 offset? How about size? Will 17" be ok, or should i stick to 16" or below? I don't mind a harsh ride Grin My Forester daily driver is rolling on Impreza STi suspention and 18", so I'm used to a stiff ride Tongue
Here are a couple of links to help you figure out how radical you can go.  Grin
This one is for calculating wheel offset.
http://www.oponeo.co.uk/advice-and-tips/wheel-offset-calculator

This one lets you compare tire sizes to find one with the equivalent circumference.
http://tire-size-conversion.com/tire-size-calculator/

For eksample, if you take the stock 195/60R15 a close match would be  245/40R17. 91.9 Mph compared to 90 Mph for the stock tire.
Not that I would recommend such a low profile, though.  Wink
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Matranaut par excellence Cool
tjommi
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« Reply #10 on: September 28, 2013, 10:30:12 am »

Thanks! Then I'll jut have to break out the tape measure and check my clearances in- and outside and see how extreme I can go Grin Anyone tried mounting fender flares to fit bigger wheels?
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
Matra_Hans
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Owner of Bagheera, Rancho, Murena & Espace


« Reply #11 on: September 28, 2013, 12:03:00 pm »

There are several kits available but they are not cheap
From Simon Fleischmann F2 and Fleischmann F3.
From Politecnic: Kit J.P. Beltoise, Murena évolution "Groupe .4" & “Groupe 5” and Groupe F.
There are many options if you are willing to spend the money!

Hans
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northmurena
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« Reply #12 on: September 28, 2013, 04:27:41 pm »

Yes, i tried to mount fender flares....but only small ones... Grin Grin Grin Grin

Kai
« Last Edit: September 28, 2013, 04:42:52 pm by northmurena » Logged
matramurena
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« Reply #13 on: October 02, 2013, 08:11:05 pm »

I got myself a set of "new" rims today. They have to be restored so the picture is borrowed from the interwebs...

I wanted ATS Classics in 15" but I could only find 13" Classics. Then these beauties came on my path. 15" ATF rims. I got the set of 4 for only 50 Euro's...



Now I have to figure out if I wish to polish the rims or coat them silver...

Martijn
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1983 Matra Murena V6 (AR engine)
2003 Matra Avantime 2.0T Expression
2003 Matra Avantime V6 Privilege
tjommi
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« Reply #14 on: October 06, 2013, 09:15:15 pm »

Yes, i tried to mount fender flares....but only small ones... Grin Grin Grin Grin

Kai
Damn! Those were wide Grin I wasn't looking to go that wide, just some standard flares if possible. Sweet ride you've got there, looks like a supercar. Do you have the horsepower to back it up?
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MY 1981 Matra Murena 2.2 (Rolling project)
MY 2014 Tesla Models S
MY 2002 Impreza (trackday car)
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