primaz

Don Potter was the best Datsun engine builder and unfortunately he passed away. He build Frank Leary's Z car the beat the Datsun race team for many years winning national championships. He build the highest horsepower, reliable Datsun engines period with many of his cars to this day holding track records at Road Atlanta, etc.. He was an expert mechanical engineer, machinist, race car repair/engine builder. He had his own cam grinding machine and fabricated every part in his engines. During his life many people wanted to copy his cams as they provided great power thru a wide range and were very streatable cams. HIs motors put others like Rebello racing to shame.

I found out that the Motorsport Auto velocity stacks are too tall but I did a bit more research and found out whom made the ones that I was hoping to buy from www.datsunzgarage.com, they used TWM Induction which was bought out by Boral Induction. I am waiting for them to get back to me to see if they will make custom velocity stacks that are the same specs, 44 mm, 38 mm tall, and 88 mm. I will let you folks know if they will make that custom size as that is the same one datsunzgarage had created that will fit into the stock 240z air box if modified.

I used to use the HID ones found at Motor Sport but they were not that bright nor reliable. I have since upgraded to the Vision X 7" round LED headlights and those are the best headlight in my opinion. They are super bright, have the round halo ring built in and I recommend to get their optional relay so that all five elements can be on when in high beam mode.

I tried to cut and paste the link but for some reason this site is not letting me do that so I attempted to type it manually; when I check the link it did not work so I printed the Motor Sport page and edited my original posting including that PDF, see above http:///www.thezstore.com/page/TZS/PROD/PFFC/07/11-3014 Motor Sport shows them as listed as Air Horn, 70-72 240Z S.U. carbureators

I want to keep the stock air box and found this great site showing Le Mans 240Z velocity stacks where they show you can modify the stock box to be able to use those full radius velocity stacks. They do not have any phone nor does it appear I can buy them from that site but the Motor sport air horns appear to look the same? Will those air horns work as the Z Car Garage Engineering site shows? Here is the Z Car Garage Engineering url on the velocity stacks http://datsungarge.com/catalog/z.htm I attached their 6 page instructions on how to modify the stock air box to accept the full radius Le Mans velocity stacks which look the same as the Motor Sport Auto air horns? I hope someone can tell me if the Motor Sport air horns will work if I follow the same modifications shown on the attached instruction sheet? Thanks in advance, I am trying to initially set up my new 240Z engine to see how fast you can make a 240Z using stock induction. The engine is a 3 Liter Datsun Spirit bottom end with a DL Potter head using the Datsun Spirit cam. I have the stock SU intake ported to match the head as well as the cast iron exhaust ported to match the head which then feeds to a custom stainless exhaust Don Potter helped design before he died. For some reason I cannot paste URL's so I saved the Motor Sport page as an PDF attachement velocity stack mod to stock air box_mod2013.pdf zstore airhorn.pdf