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New Forgelines , 4mm less threads for bolts, help

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Old 05-12-2017, 02:47 AM
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gulf911
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Default New Forgelines , 4mm less threads for bolts, help

Hello,
After installing a set of forgelines we measured the depth of threads into the hubs , the OEM wheels its 14mm , and 10mm with the forgelines.

Would it be necessary to use studs , or are there Porsche bolts that are a bit longer?
Thank you for your help!
Old 05-12-2017, 05:49 AM
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cox1974
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yes there are longer bolts.. check our sponsors... :-)
Old 05-12-2017, 09:12 AM
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blacksheepSpyder
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So how did you resolve this?

Did you use stock bolts?
Old 05-12-2017, 09:44 AM
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ChrisFL
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Originally Posted by gulf911
Hello,
After installing a set of forgelines we measured the depth of threads into the hubs , the OEM wheels its 14mm , and 10mm with the forgelines.

Would it be necessary to use studs , or are there Porsche bolts that are a bit longer?
Thank you for your help!
if you're going to constantly switch back and forth, then I would just buy studs. If its an occasional thing, you can buy bolts in various lengths from a number of places. check for merchants that sell spacers and they will usually have the bolts that go with them.
Old 05-12-2017, 10:36 AM
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ExMB
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Originally Posted by gulf911
......depth of threads into the hubs , the OEM wheels its 14mm , and 10mm with the forgelines.

...... are there Porsche bolts that are a bit longer?
Yes
Old 05-12-2017, 01:49 PM
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blacksheepSpyder
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so we need to find longer bolts?

which forgeline wheels did you get?

Last edited by blacksheepSpyder; 05-12-2017 at 10:00 PM.
Old 05-13-2017, 10:12 PM
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gulf911
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Hi all,
Thanks for the information. I went with the GS1R's , Competition Motorsport
confirmed they run the stock bolts. I will go to studs for ease of swapping as suggested.

Thanks alot,
Dan
Old 05-13-2017, 10:55 PM
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Mech33
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I wouldn't mess with studs personally. Longer bolts all the way!
Old 05-13-2017, 11:01 PM
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paradocs98
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I highly recommend MSI wheel studs if you haven't already made a purchase.
Old 05-14-2017, 08:36 AM
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Bill Lehman
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Originally Posted by paradocs98
I highly recommend MSI wheel studs if you haven't already made a purchase.
+1 for MSI studs. I broke "Track Studs" on my 987.1, replaced with MSI, no issues. Sticking with bolts on GT4.
Old 05-14-2017, 10:48 AM
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4carl
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If you stick with bolts the rule of thumb is a min of 7 turns to seat . If you have less their too short . Carl
Old 05-14-2017, 05:39 PM
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gulf911
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Thanks all , who has the longer bolts besides dealers?
Old 05-14-2017, 10:46 PM
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Mech33
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Originally Posted by gulf911
Thanks all , who has the longer bolts besides dealers?
I bought aftermarket longer front bolts (+12 mm or so) for use with front spacers from ECS Tuning. Same OEM style with the integrated "washer" piece.
Old 05-15-2017, 12:12 AM
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DC640
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Oem bolts does not work w gsr1?
Old 05-18-2017, 11:28 AM
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blacksheepSpyder
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stock bolts are fine.


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