injector cleaning, strut bars an 4 point harnesses

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
z.Leinbach
Posts: 504
Joined: Thu Aug 06, 2015 10:08 pm
Car: 1990 Nissan 300ZX NA T-top
Location: Kennewick, Wa
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Alright guys. I need some opinions and insights. So far I have, replaced the pcv valves.. (nasty business that was with out the proper tools) and the fuel filter. She's running great, before that I used the big can of royal purple max clean, which as expected yielded decent results, and more improvement upon replacing those things, more. Question is how does our engines like top end lubricants (Lukas fuel injector cleaner), good? Bad?,

Also I'm looking into strut bars kinda stiffen her up alil bit and for looks as well, why is there such a price canyon between the Meegan brand and curbing or what ever it's called. And what's the difference if any.

And then I've recently acquired a 4point harness that id like to install. But what are the points of installment other then the strut bar.


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DCaff300ZX
Posts: 4202
Joined: Sun Jun 14, 2009 8:18 am
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1993 CRP TT- Modified
Location: Tacoma, Washington

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I've used the Lucas in my NA, worked great as it lubes the injector which is a needed bonus over normal cleaners.
The strut bars are an issue with the throttle cover and interference, which is what comes with the cheap Megan and you don't get with the Carbing and other well-fitting units.
Many of the aftermarket strut bars do not fit with the throttle cover due to hood and other clearance issues, so be sure to ask that important question before purchasing any strut bar...and the 4-point harnesses are meant to fit to a structural roll bar, not a non-structural strut bar.

z.Leinbach
Posts: 504
Joined: Thu Aug 06, 2015 10:08 pm
Car: 1990 Nissan 300ZX NA T-top
Location: Kennewick, Wa
Contact:

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Ohhh ok. That's why I asked the question. I have to say I have my 4 point bolted to the floor and the seat itself. It holds very well.

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NolimitZ32
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Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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your 4-point harness is just for looks if it is bolted to the seat. the top mounting for the harness should be to a proper harness mount bar behind the seat and level with your shoulders (never bolted to the floor because this could collapse your spine in a serious accident). Sorry if I come off as blunt and a bit of a D but this is your safety we are talking about.

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DCaff300ZX
Posts: 4202
Joined: Sun Jun 14, 2009 8:18 am
Car: .
1993 CRP TT- Modified
Location: Tacoma, Washington

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I agree- 4-points only work correctly with a full race cage and setup, or otherwise are just for looks and could actually hurt you in an actual accident. ONLY for racing and if done correctly, and inspected to boot...

z.Leinbach
Posts: 504
Joined: Thu Aug 06, 2015 10:08 pm
Car: 1990 Nissan 300ZX NA T-top
Location: Kennewick, Wa
Contact:

Post

Any ideas where to find such products. And no worries on the bluntness but. In my case Iam short and my shoulders are below the hole in the seat which makes for the necessary angles so not much damage is done, truth be told I'm probably gonna ditch the harness for now cause the buckle is worn out and doesn't stay on


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