Help with diagnostic in Calgary?

I’ve got a '91 180SX, and would love for someone knowledgeable about SR20DETs to help me out.

Long and short of it is I’m deciding whether or not to write of my redtop or to get a new one.

I think I might have rod knock, and if that’s the case I’m gonna get a blacktop.

However, my knocking only happens sometimes and seems to be coming from the turbo side or the upper end of my car, and my car dosen’t knock at idle. I’m new to Calgary and would really love a hand. Please help NECC guys! I’ve seen tons of nissans and NECC stickers while taking the bus this week.

I beg: Help a brother out please :slight_smile:

I think the 2 main places that i mostly hear of are:

Autodream JDM and drift technology
#159 5120 47 St. NE
Calgary, Alberta
CANADA T3J4K3
Toll free: 877-373-2695
Tel. : 403 248-1566
Fax : 403 568-0567
Email: info@autodream.ca
Store Hours: Mon - Fri: 8:00AM to 5:30PM
Saturday.: 9:00AM to 4:00PM
Sun - holiday: Closed

and / or

Speed Tech racing
Main Branch - Calgary
1.866.206.7751
403.250.7751
403.291.9810
info@speedtechracing.com
1655 32 Ave NE
Calgary, Alberta
T2E 7Z5
Canada

Good luck!

Thanks! I took it for a second opinion and unfortunately I have rod knock. Ouch!

Thanks 240ssx & Jay_Nismo for your help.

To verify try unplugging an injector to see if it goes away. It should since there is no more load on that cylinder or rod it should stop the sound. Start with number one and keep going.