Light weight flywheel?, Street driven 914-6 w/ 2.7l RS spec engine & 901 transaxle |
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Light weight flywheel?, Street driven 914-6 w/ 2.7l RS spec engine & 901 transaxle |
Rufus |
Jun 27 2020, 09:35 PM
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#1
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Member Group: Members Posts: 314 Joined: 8-April 06 From: Central NC Member No.: 5,840 Region Association: None |
Hi Folks - I just bought this 914-6:
http://www.914world.com/bbs2/index.php?sho...346147&st=0 In planning to add an LSD, I’m also considering a lightweight flywheel. Will the low end torque of the 2.7l RS spec engine with 901 gearbox (believed to have stock 914-6 ratios), in a stock curb weight ‘70 914-6 be compatible with street driving with a lightweight aluminum flywheel without making starting off too edgy? It has a new street clutch; nothing radical. Also my new 205/55-15 tires are about 5% smaller in diameter than the 185/70-15 1970 OE tires ... and thus provide about 5% greater torque multiplication. (Why? I did this on my street driven ERA 427 Cobra, and liked the benefits to engine response, and reduced rotating / overall vehicle masses. In that case, even with a triple disc racing clutch, starting from a stop was still pretty manageable.) Opinions appreciated ... |
Rufus |
Jun 28 2020, 02:36 PM
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#2
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Member Group: Members Posts: 314 Joined: 8-April 06 From: Central NC Member No.: 5,840 Region Association: None |
Thanks for your input, stownsen914. About all that’s known is the case is a ‘73T 2.4l 7R, and the transaxle is a 901, “possibly” original to the car.
I realize that without knowing more, like gear ratios, especially 1st, it’s difficult to know how light a flywheel I can get away with for the street with a curb weight of about 2100 lbs., and a close-to-RS-spec 2.7l. My hope is someone’s covered similar ground before, and can provide a point of reference. |
wndsrfr |
Jul 1 2020, 09:19 AM
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#3
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Senior Member Group: Members Posts: 1,430 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
Thanks for your input, stownsen914. About all that’s known is the case is a ‘73T 2.4l 7R, and the transaxle is a 901, “possibly” original to the car. I realize that without knowing more, like gear ratios, especially 1st, it’s difficult to know how light a flywheel I can get away with for the street with a curb weight of about 2100 lbs., and a close-to-RS-spec 2.7l. My hope is someone’s covered similar ground before, and can provide a point of reference. I've got an AASCO aluminum FW on my 2.7RS+ engine... with the street clutch disk it's fine on the street. I'm near Va. Beach.... will pm you. |
wndsrfr |
Jul 1 2020, 09:44 AM
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#4
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Senior Member Group: Members Posts: 1,430 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
My 2.7 had this fw on it when I got it from Josh
http://www.914world.com/bbs2/index.php?act...t&id=495546 Attached thumbnail(s) |
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