moritz55

Thanks MMaras for input.... I'll go with the 2.5psi-4.5psi Airtex 8016S ... it still has the 30gph flow rate ... so it makes sense!

The Airtex 8012S is rated 5-9psi at 30gph.... shouldn't we use Airtex 8016S which is rated 2.5psi - 4.5psi at 30gph ? Just curious ? I am looking to add one to supplement my Mechanical pump as backup... Many thanks.....

View Advert Nikki Fuel Pump Parts - Mechanical Fuel Pump Spectra SP1173MP fits 75-77 Nissan 710 2.0L-L4 NEW Mechanical Fuel Pump, SP1173MP ..... 3.5psi - 4.5psi For Sale is a New Fuel Pump, SP1173MP. I bought several of these to rebuild my Nikki Stock fuel pump as written up on this site. I have enough spare parts now in case the Nikki fails again. This fits 1975-77 Datsun/Nissan 710 2.0L-L4 engines or equivalents. Thus it's for sale at a nice discount including shipping to 48 continental states. Thank you! If interested send text to Mark: 507-208-0140 Advertiser moritz55 Date 05/21/2019 Price $28.00 Category Parts for Sale

They sell for $60 on eBay..... your choice. They also work but are not original looking.

I am sure you searched on eBay .... parts are NOT cheap... https://www.ebay.com/itm/Datsun-240Z-260Z-280Z-Accelerator-Throttle-Rod-Linkage-NICE-OEM-7-1-2-Inches/173888755610?hash=item287c93d79a:g:F8kAAOSwZ3lcx8ka A little cheaper .... if you have a good working adjustable end... https://www.ebay.com/itm/70S-80S-DATSUN-240Z-260Z-280Z-ACCELERATOR-THROTTLE-ROD-LINKAGE-NICE-OEM-PART/222997336039?hash=item33ebad4fe7:g:crUAAOSwbEZbDYwX:sc:USPSFirstClass!27617!US!-1

Hey w3wilkes... good question. I am probably stating the obvious but assuming the tuning/idle is stable and setup properly at 4400 feet above sea level the same procedure should apply. Therefore if following page 10 "Needle Testing" method of the SU Needles - Tuning_SU_Carburetors.pdf ; based on how the car behaves during accelerating in 4th gear (Top Gear) and how well it runs steady at Top Speed at the 4400ft above sea level environment, it would indicate which Needle Stations should be richer or leaner. So when determining the optimum Needle profile of one Needle to another, the diameter reduction (or change) comparison must always reference off of Station #2 Idling position. Maybe a "SA" Needle profile works better at 4400 ft altitude versus an SM, SR or SL in order to be at 2.5turns out?

I did some research and found 2 Needles close to the N-27 stock ones...... See my write up.... Hope this helps .... Good Luck... I compiled some data to share (all from this site) on Needle comparisons for anyone's interest to use. There are 2 Needles that come close to the N-27 profile during working ranges and I went with one that is a slightly richer at Stations #3 through #6, but leaner than "SM" ... I am currently testing the "SR" Needle that is close to the N-27 (but slightly richer through all stations when compared to Idle Diameter), have set the Mixture Screws on the SUs back to 2-1/4 Turns Out and it's idling rock sold again... put about 100miles on these needles and the car is running real well and will stick with them for now. The closest Needle profile to the N-27 is actually the "SL" , and may work better for those with a more Stock Like engine configuration. I used pages 10 & 11 for Needle Profile testing during driving from attachment: SU Needles - Tuning_SU_Carburetors.pdf I purchase my 0.100" Needles from SU Midel: http://www.sumidel.com/shop/category/-0100-fixed Data table in the last attachment.............................. SU Needle charts pp 47 to 49.pdf SU Needle profiles vs N27 Stock.pdf SU Needles - Tuning_SU_Carburetors.pdf

My intent is not to hijack this thread but thought adding to it may help others on some data I compiled as I fine tuned my New SU's (from ZTherapy). I can delete this if recommended... My '73 240z engine: L24 rebuilt with Stock Cam, Mallory Breakerless Disty with Mallory Promaster Coil, MSD 6A Box, New Rockers/Lash Pads adjusted valves to spec. NOTE Spark Plugs: NGK BP6ES Plugs gapped to 0.062" (due to Mallory Promaster Coil and MSD 6A Spark) ... I run 87 Octane Unleaded. Tuned SU's using ZTherapy DVD: 18degrees BTDC, Idles great at 840rpm (when my electric fans kick on RPM drops to ~800rpm). Both SU's dialed currently at 2-1/4 Turns Out (Front & Back are the same). I DO NOT have O2 Sensors so am not able to measure precisely during driving.... Background: I tuned the SUs using SM Needles, 20wt damper oil (ATF) as described in the DVD and it ran extremely good. Balanced them real well and rock solid idling, starting well and no sputtering during acceleration and top cruising speed. However after about 250miles on them, I noticed it ran a little rich during accelerating and cruising based on the plugs so I tweaked Mixture Screws Leaner (Turned In) ... after repeating this for about 1month putting 300miles on it, I could not get the idle as stable as I liked... so I began to research on what Needle profile may work better for my engine config during accelerating and cruising. I compiled some data to share (all from this site) on Needle comparisons for anyone's interest to use. There are 2 Needles that come close to the N-27 profile during working ranges and I went with one that is a slightly richer at Stations #3 through #6, but leaner than "SM" ... I am currently testing the "SR" Needle that is close to the N-27 (but slightly richer through all stations when compared to Idle Diameter), have set the Mixture Screws on the SUs back to 2-1/4 Turns Out and it's idling rock sold again... put about 100miles on these needles and the car is running real well and will stick with them for now. The closest Needle profile to the N-27 is actually the "SL" , and may work better for those with a more Stock Like engine configuration. I used pages 10 & 11 for Needle Profile testing during driving from attachment: SU Needles - Tuning_SU_Carburetors.pdf I purchase my 0.100" Needles from SU Midel: http://www.sumidel.com/shop/category/-0100-fixed Data table in the last attachment.............................. Maybe this information is helpful to others .... if not I can delete this .... again I did not want to confuse or hijack this thread. Many thanks..... SU Needle charts pp 47 to 49.pdf SU Needles - Tuning_SU_Carburetors.pdf SU Needle profiles vs N27 Stock.pdf SU Needle Stations.bmp

View Advert For SALE: $3.00 , 70-83 Z/ZX SHORT Oil Pan Screws , plus shipping I have a set of 240z L24 Oil Pan SHORT screws, total of 32 pieces (31 plus an extra NEW). They need a good cleaning... https://www.thezstore.com/page/TZS/PROD/classic14a/14-1260 $3.00 or OBO plus shipping... Hope someone can use them... text me (507) 208-0140 or PM . Mark Advertiser moritz55 Date 03/13/2019 Price $3.00 Category Parts for Sale

View Advert For SALE: $40 - free shipping , Master Brake Cylinder - 15/16" Bore - 78 280z Datsun/Nissan For Sale is a "New-ish" Master Brake Cylinder, 15/16 Bore (1978 280z), bought it NEW, installed it then pulled off my 1973 240z the same day!!!. It did not work with my SU Air Box because the bleeder valves interfered. Classic dumb move on my part... installed it, added the brake fluid, bled the brakes ..... then Oh Shxx !! The Orange Airbox would not fit back on due to the interference with the bleeder valves! For Sale $40 or OBO with free shipping to continental 48 US. If interested, PM me or text (507) 208-0140 .. Mark Advertiser moritz55 Date 03/13/2019 Price $40.00 Category Parts for Sale

For Sale is a "New-ish" Master Brake Cylinder, 15/16 Bore (1978 280z), bought it NEW, installed it then pulled off my 1973 240z the same day!!!. It did not work with my SU Air Box because the bleeder valves interfered. Classic dumb move on my part... installed it, added the brake fluid, bled the brakes ..... then Oh Shxx !! The Orange Airbox would not fit back on due to the interference with the bleeder valves! For Sale $40 or OBO with free shipping to continental 48 US. If interested, PM me or text (507) 208-0140 .. Mark

I have a set of 240z L24 Oil Pan SHORT screws, total of 32 pieces (31 plus an extra NEW). They need a good cleaning... https://www.thezstore.com/page/TZS/PROD/classic14a/14-1260 $3.00 or OBO plus shipping... Hope someone can use them... text me (507) 208-0140 or PM . Mark

Let me add to this old post on Mirrors I recently purchased and am satisfied with this past July, 2018. RatSport is a UK company: ratsport.co.uk Email: info@ratsport.co.uk Mirrors, come in Flat Black (can be painted) or Chrome: https://www.ratsport.com/PBSCProduct.asp?ItmID=9611449 These are heavy ABS plastic, the mirror surfaces are very high quality and both look nice on the car while also being very functional with great visibility. They are pretty affordable so I bought 2 sets and had them painted the same color as my 240z, so I have an extra set for replacement and parts if necessary. Many thanks...Mark

Hi ..thanks for the comment.. I actually had all my bumpers re-chromed with all new rubber as well. I am just not too enthusiastic about drilling holes into the front bumperettes to attach this. That's the only reason right now.... I may regret it at some point!

Great suggestion !!!!

Bump ... price drop ... $50 plus shipping.....

Bump .. price drop... $20....plus shipping.

Bump .. price drop $30.

Bump... price drop .. $65 plus shipping.. of OBO..

I have decided to remove this item and keep it with a 2nd set of SU 4screw round tops. It is no longer for sale.... Many thanks Duffy!

Bump.. price adjusted accordingly.

For sale is New Carpet Padding for 1970-78 240z thru 280z Coupe.... $40 plus shipping or OBO. I purchased this New from ZCarSource for my 240z and did not use this. This is 3ft x 9ft - 2inch area, 1/4inch thick, compressed to 3/16inch thick. Enough material for One(1) Coupe. Link: https://zcarsource.com/carpet-padding-240z-260z-280z-280zx-70-83-coupe-new If interested call/text Mark... 507-208-0140.

Decided to NOT sell this and rather keep it as a spare with my extra set of 4screw SU roundtops. ... tx ============================================================ I am selling extra parts I have acquired, thus this Heat Shield for sale. It's ceramic coated by Performance Coatings in WA. It's a special Cerakote 2000 degree coating and the application alone was $75.... Thanks Duffy for the help!!!!! Asking $150 , OBO ... includes shipping to 48 continental states. Call or text Mark: (507) 208-0140 .

For sale is a NOS 1973 Front Over-rider bar, 30-1/4 inches Center-to-Center holes for mounting to top of bumperettes. Comes with instructions for mounting and all hardware in original box. Will repackage in additional box for shipping. I'd like to get $85, or OBO with free shipping... to 48 Continental US. Message me or text Mark at (507) 208-0140 ... Note: I bought this New one to install on my front bumper after I had it re-chromed, but decided to NOT install it. This Front Over-rider has never been installed, see pics.

Updated prices and description.