T3 front swaybar sr20 and JBC crossmember
T3 front swaybar sr20 and JBC crossmember
T3 has a sr20 front sump swaybar now
Anyone tried it and with jbc crossmember?
Anyone tried it and with jbc crossmember?
Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
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- Posts: 24
- Joined: 14 Dec 2018 10:43
Re: T3 front swaybar sr20 and JBC crossmember
I do I have the JBC V3. The swaybar isn't mounted yet as I have to still weld the mounts, but I can probably answer your questions.
Re: T3 front swaybar sr20 and JBC crossmember
ive already bought it and its installed- norm has his installed and driving see funwithmonkeys thread for feedback
Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Re: T3 front swaybar sr20 and JBC crossmember
Are you referring to this one: https://technotoytuning.com/nissan/510/ ... waybar-510
I had bought a front sway bar on ebay for my KA swap but it won't fit unless I grind down the old series McKinney cross member.
For that reason, I'm considering buying the new T3 bar but was curious about the design... are there performance trade-offs?
I had bought a front sway bar on ebay for my KA swap but it won't fit unless I grind down the old series McKinney cross member.
For that reason, I'm considering buying the new T3 bar but was curious about the design... are there performance trade-offs?
Re: T3 front swaybar sr20 and JBC crossmember
Yep that’s the one Funwithmonkeys has. To be comparable to a 1” solid bar in the stock location, the front mounted bar needs to be quite a bit larger. Something like 1.375 tubular or 1.25” solid.
I had to drop my 1” sway bar when I installed the JBC stuff and repositioned the engine so I am interested in building some blade style bars that are comparable in stiffness to what I had...
I had to drop my 1” sway bar when I installed the JBC stuff and repositioned the engine so I am interested in building some blade style bars that are comparable in stiffness to what I had...
'72 2 door KA project | S14 Silvia RB25DET | S14 RB26DETT (sold) | '90 Audi 90Q20V (sold)
Re: T3 front swaybar sr20 and JBC crossmember
well jordan i have 2 here that you can copy the blade design off-- speedway makes quite a few "bars" and also some splined ends- this was a good starting point and better than "nothing" literally.. the solid mounting plates that T3 makes are nice and i believe would work with a larger bar- it would be nice if they make a larger bar for those of us with 300# front springs but thats not yet - and i have enough other things to do on these so messing around with fabricating swaybars isnt a priority yet -
Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
- funwithmonkeys
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- Joined: 05 Sep 2013 09:34
- Location: Vancouver, BC
Re: T3 front swaybar sr20 and JBC crossmember
I can confirm what Jordan said. The bar fits very well. Is easy to install and works well. It just needs to be bigger. I have had it out quite a bit now and on my car at least it is not stiff enough. A 1.25 solid bar in that location would probably be in the sweet spot. I'm going to look at the speedway bars soon.
If no one from the future comes back to stop you from doing it then how bad of a decision can it really be?
Re: T3 front swaybar sr20 and JBC crossmember
Standard T3 product IMO......
"People don't like it when shit doesn't match their rule of thumb." Sam
- Dave Patten
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Re: T3 front swaybar sr20 and JBC crossmember
With the TC rod to sway bar clearance being an issue on extremely lowered cars, FutoFab looked into making a similar forward mounted sway bar.
What we found was when you double the length of the arms, you need to increase the torsional strength of bar by roughly 4 times.
To match torsional strength of our 1 1/8" sway bar, the forward mounted sway bar diameter needed to be over 1 3/4".
Drawing from T3's online info, assumptions and my own vehicle measurements (all very non-scientific) my calculations put the T3 bar as being equivalent to a stock position bar with a diameter between 5/8" to 3/4".
Here is a link to a handy sway bar torsional strength calculator.
http://www.gtsparkplugs.com/Sway-Bar-Calculator.html
What we found was when you double the length of the arms, you need to increase the torsional strength of bar by roughly 4 times.
To match torsional strength of our 1 1/8" sway bar, the forward mounted sway bar diameter needed to be over 1 3/4".
Drawing from T3's online info, assumptions and my own vehicle measurements (all very non-scientific) my calculations put the T3 bar as being equivalent to a stock position bar with a diameter between 5/8" to 3/4".
Here is a link to a handy sway bar torsional strength calculator.
http://www.gtsparkplugs.com/Sway-Bar-Calculator.html
Re: T3 front swaybar sr20 and JBC crossmember
speedway has their own calculator as for arm length and thickness-- i would tend to believe what their ratings are-- my real race car has a speedway hollow 1.25" and i think its 3/16"? id have to check - it also has arms that are at least 15" long as the swaybar is mounted behind the cylinder head ..
im pretty sure that a 1.25" od bar will get to the stiffness required based on the arm length -
either way i wasnt able to figure out 100% if the futofab bar works on the JBC crossmember - and no one could seem to give me the answer.
im pretty sure that a 1.25" od bar will get to the stiffness required based on the arm length -
either way i wasnt able to figure out 100% if the futofab bar works on the JBC crossmember - and no one could seem to give me the answer.
Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Re: T3 front swaybar sr20 and JBC crossmember
futofab bar does not work.
"People don't like it when shit doesn't match their rule of thumb." Sam
- eastbaysolo_73
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- Location: Northern California
Re: T3 front swaybar sr20 and JBC crossmember
Has any one made a bigger bar? Or know where you can purchase a bigger bar to use so its stiff enough. Thank you.
1970 2 door sr20det cookie cutter build
My build thread
http://www.the510realm.com/viewtopic.php?f=3&t=30772
Nor Cal Meng !
My build thread
http://www.the510realm.com/viewtopic.php?f=3&t=30772
Nor Cal Meng !
- funwithmonkeys
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- Joined: 05 Sep 2013 09:34
- Location: Vancouver, BC
Re: T3 front swaybar sr20 and JBC crossmember
I am currently putting together a 1.25 solid and a 1.125 solid. I should have tested them out by next month.
If no one from the future comes back to stop you from doing it then how bad of a decision can it really be?
- eastbaysolo_73
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- Joined: 18 May 2014 09:28
- Location: Northern California
Re: T3 front swaybar sr20 and JBC crossmember
Dude thats awesome! Cant wait for the updates.funwithmonkeys wrote: ↑07 Apr 2021 08:49 I am currently putting together a 1.25 solid and a 1.125 solid. I should have tested them out by next month.
1970 2 door sr20det cookie cutter build
My build thread
http://www.the510realm.com/viewtopic.php?f=3&t=30772
Nor Cal Meng !
My build thread
http://www.the510realm.com/viewtopic.php?f=3&t=30772
Nor Cal Meng !
Re: T3 front swaybar sr20 and JBC crossmember
let see it!
Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie