NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Kirk Roll Bar Install (https://www.nopistons.com/3rd-generation-specific-18/kirk-roll-bar-install-38393/)

brake 05-05-2004 11:51 PM

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A few pics and notes on the install of a Kirk roll bar.

Note the green circles. Many people have issues with the bar contacting the hatch struts. I had the cheat the rear diagonals over slightly to alleviate the issue. Notice the relationship of the diagonals vs. the stock strut bar mounting bolts. The main hoop is in straight.

Note the blue circles. The drivers side seat doesn’t really fit into the recess. It contacts the main hoop on the outer side if you put the seat in pimpin’ position, and there is plenty of wasted space on the inner side.

The shoulder straps of a 5pt. harness fall right on the curve of the bar. Either tabs will have to be welded onto the bar or an eyebolt added to keep the harness from slipping around the curve.

brake 05-05-2004 11:54 PM

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Close-up of the pass side diagonal. The circled bolt goes through the hole in the stock jacks mounting point. This was done because of the aforementioned interference with the hatch strut.

brake 05-05-2004 11:56 PM

Drivers side diagonal mounting point. I wraped the fuel door release cable with tape so the bolts don't chafe the cable.

brake 05-05-2004 11:59 PM

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Did I mention it was a tight fit over the rear strut towers> The drivers side diagonal had to be cheated to the outside to clear the stock strut bars mounting points. Notice I had to notch the plastic panel surrounding the strut to clear the diagonal. It hurts to take a dremmel to a prestine interior.

brake 05-06-2004 12:00 AM

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Pass side diagonal.

brake 05-06-2004 12:01 AM

Drivers side shot

brake 05-06-2004 12:02 AM

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Pass side

brake 05-06-2004 12:07 AM

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Rearview shot.

brake 05-06-2004 12:11 AM

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This pissed me off.

RussellTT94 05-06-2004 12:13 AM

thanks for posting these pics.



i was seriously considering a kirk cage, but i think i would rather have a custom one built.



how much did the kirk roll cage cost?

brake 05-06-2004 12:15 AM

I opted for the removable center section. The couplers fit very tight and are difficult to move (as evidenced by the peeled off paint). Also, due to residual welding stress, the bar sprung when the couplers were removed. I nearly busted a gut getting it back together. Good luck trying to do it inside the car.

Srce 05-06-2004 12:19 AM

Hmm, how much to the wheels do you make?

brake 05-06-2004 12:20 AM

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Another interior shot.

RussellTT94 05-06-2004 12:21 AM


Originally Posted by Srce' date='May 6 2004, 01:19 AM
Hmm, how much to the wheels do you make?

not as much as your 300fwhp tempo

brake 05-06-2004 12:25 AM

Reinstalling the carpet is a bitch. There is a tab holding the bins in somewhere in the green circle area. It's impossible to get the carpet back over this tab after the bar is installed. Also, there is a plastic clip that attaches the bins to the side panels directly behind the bar. I suggest cutting the carpet after the bar is positioned, but before it's bolted in so that you can access these areas.

Srce 05-06-2004 12:29 AM


Originally Posted by RussellTT94' date='May 6 2004, 12:21 AM
not as much as your 300fwhp tempo

WTF? I suggest you revaluate what and for what reason you just said that and then PM me so we can clear up any misconseptions you might have about why you even responded to my question in this topic. https://www.nopistons.com/forums/pub..._DIR#>/dry.png

brake 05-06-2004 12:38 AM


Originally Posted by RussellTT94' date='May 5 2004, 09:13 PM
how much did the kirk roll cage cost?

315 I think. I spent extra on the removable center section and paint. Neither of which I recommend. I could peel the paint off with my fingernail. It's obvious they didn't do any prep before painting. I had to sand the entire thing down and repaint it. As you can see from the pics, I did scratch it up a little during install. I suggest powdercoating the bar.

Kirk's prices have gone up slightly since I purchased the bar.

brake 05-06-2004 12:50 AM


Originally Posted by Srce' date='May 5 2004, 09:19 PM
Hmm, how much to the wheels do you make?

I don't know, never dyno'ed the car. It's nothing special, just a stock engine/turbos and all the bolt-on's.

I didn't buy the bar for straight line purposes.

Srce 05-06-2004 01:03 AM


Originally Posted by brake' date='May 6 2004, 12:50 AM
I don't know, never dyno'ed the car. It's nothing special, just a stock engine/turbos and all the bolt-on's.

I didn't buy the bar for straight line purposes.

That's what I figured, I thought it was a circuit car. How often do you hit the track, and how much of an improvment do you think the cage should make in body rigidness? Also, what kind of suspension work have you done?



I'm just asking since I'm not a big fan of drag racing either. https://www.nopistons.com/forums/pub...IR#>/smile.png

JaySpec7 05-06-2004 02:03 AM

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Where did you get yours?



Mine looks different.. the rear harness bar goes all the way on mine...



Yes it is a tight fit... but I didn't have to trim anything yet... just need to trim the covers..

apexkw 05-06-2004 06:20 AM

yea i am with jayspec7 here. mine lets me have full access to the bins and seems like my main hoop fit better. maybe you got a old one or maybe its because jayspec7 and i didnt get the removable crossbar

Fd3BOOST 05-06-2004 03:15 PM

How much leg room did you have to give up? Will the drivers seat still go all the way back?

93 R1 05-06-2004 03:43 PM

Good pics and tips man. I have one in the garage I need to install soon.

JimmyJimboJet 05-06-2004 06:34 PM

nice pics and write up.



i'm with Dave also-how much, if any, leg room did you have to sacrifice for this?


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