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Anyone running a top mount turbo on their SR?

sr20det topmount turbo manifold

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#1 jparker893


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Posted 27 November 2015 - 01:10 PM

Blew my turbo on the way back from SoCal. Rather than buy a replacement turbo, I figured it's time for an upgrade.


So I did some research and bought the ISR(formerly know as ISIS) Performance RS3871.


I'm planning on doing a top mount set up and haven't seen any info on what will and what 


won't work fitment wise. Is it their any issues that I need to worry about?


I've seen photos of top mount set ups on the interwebs so I am just


hoping is super easy and all I have to do is buy the top mount manifold


and the supporting mods. 


BTW: these are the turbo specs


Compressor side 3" inlet 
Exhaust side 0.64 A/R turbine housing, Results:
This turbo is rated up to ~380hp.


#2 speedtech


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Posted 10 December 2015 - 05:52 PM

i have a top mount turbo set up on my sr 260z. the only issue i had was the external wastegate placement against the steering. i had to space up the motor a bit 

#3 jparker893


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Posted 15 December 2015 - 03:23 PM

@speedtech what do you mean by "space up the motor a bit"? 

#4 Big Ben

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Posted 06 January 2016 - 05:14 AM

I have this same Terrorist Turbo on mine as well. 

11 Maxima

72 240z


#5 BluDestiny



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Posted 07 January 2016 - 07:08 AM

He means the motor had to physically be raised due to wastegate interference with the steering column. I ran into the same issue with a sr20 bottom mount setup. The steering column was going directly through where the turbo sits. So I had to go top mount Everything else is being fabbed up, so it'll be a custom fit for me. 

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#6 Nv_s30



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Posted 05 February 2016 - 02:05 PM

I am running a top mount but I am about to switch to a front mount turbo right in front of the steering rack

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