good job !.. thats a big difference although drilling 10mm would have been more than enough since you are using 3/8 fittings
Yea i tried 10mm it just looked sihtty on the inside. ive drilled fittings out to do you think i could offer these exchange? do you think they would sell. atleast people can have single or dual in out.
dont see why not .. you can run 650sards/collars on the series 1 rails ..easily make 400rwkw+ .... plenty for the majority of Z's
I gotta say your tig welding shows talent. I think offering a changeover would get takers. If you had sold them I wouldnt have modded mine. just bought em.
Not sure if im braking guidelines by asking how much would people would be willing to pay for rails i mod?
priceless It depends one how many hours you need to spend to do it and how many you want to make verses the demand. If the price is at or close to the "300 rail" and no warranty etc them you may find few takers. If you can produce it at a good price, below the 300 rail and there is no fitment issues them there maybe a few takers. I'll admit I am interested, can count me as a maybe if the price is right!
How could the design be improved for a smoother I.D surface post drilling? I'm all for a cheap improvement, where a cheap improvement is needed, just interested to know options for the more obsessive of power junkies.
I can smoothen out inside slightly with a diff type of drill. it looks rough in the pics but i dont think it that bad.
You could try using a boring bar. That would give a better result. Or maybe just slow the drill speed and feed rate right down.
Reckon you could find a cylindrical file of the same diameter? Impressive work by the way! Following your VQ30 build too
These are the facts about the 300deg rails for the later style pintle-less 615 nismo injectors. These are far from being a bling only addition, and to my way of thinking were cost effective, because I brought the kit with 615 injectors, and the later style connectors. I commend ezzupturbo for his efforts in modifying the stock rails, I've done it also, and the only way I found to smooth the bore(especially around the buckets) was to use a worn 80g flapper on an extension, it's really important to have the bore smooth. The length of the modified rails needs to the same as the stock rails, or there will be problems when it comes time to connect the fuel lines, especially for a Ti To configuration. The price is right if it stays that way, but you'd have to add the collars for sard injectors to that, plus new injector insulators ect, or use the older style injectors which are around 800-1000ad a set. Like I said it was cost effective for me to just buy the whole kit from coz, and be done with it. Description: 300 Degree High Performance Fuel Rails fit the OEM newer style of injectors (pintle-less) or Sard style injectors into either style lower intake (early or later). A common upgrade is to install the newer style pintle-less OEM injectors on an earlier model Z32 replacing the pintle type injectors. In the past, the labor required to complete this conversion involved not only removing the intake manifold to access the fuel rail and injectors, but removal of the timing belt and most of the front of the engine to remove the lower intake. The lower intake is then removed and sent off for machining to accept the later style fuel rail. We developed our rails to make this upgrade simpler. We avoid all the additional labor and downtime. Our rail will adapt the pintle-less injectors to the early style lower intake directly. Everything is a simple bolt on. 300D-012-01 fits Sard injectors (commonly sold as 850cc/min) onto an early model lower intake. 300D-012-02 fits Sard injectors onto a late model lower intake. 300D-012-03 fits pintle-less injectors onto a late model lower intake. 300D-012-04 fits pintle-less injectors onto an early model lower intake (shown above). Advantages to our design: # Bolt on application. Absolutely no major machining or fabrication required. For pintle-less injectors with the early plenum, there is a small amount of grinding to make the #1 injector fit. (Better than Stock and the Border aftermarket fuel rail depending on injector choice) # Can be plumbed in serial or parallel. Installation flexibility is user definable for performance applications. The installation of a parallel feed system should aid in preventing fuel starvation in cylinders 5 and 6 as is common with a stock setup. (Better than Stock) # Has 57% "faster" pressure recovery then a stock fuel rail. The 300 Degree rails maintain pressure longer then a stock fuel rail while regaining fuel pressure quicker with out hindering fuel flow below the delivery rate of the stock fuel pump. (Better than Stock) # Increased fuel velocity when pressure begins to drop which assists in the recovery of fuel pressure. This will be beneficial for those that run Nitorus Oxide Injection systems where the fuel pressure drops to undesirable levels during NOS injection. (Better than Stock and Border) # They are completely thermally isolated from the upper and lower plenums. The stock fuel rails are thermally isolated, the border fuel rails are not. This can lead to heat soaking of the fuel rail, increasing fuel temperature. (Better than Border) # Fuel injector to main bore alignment is optimized for maximum fuel delivery. (Better than Stock and Border) # Absolutely the highest and tightest tolerance for all threads where the AN fittings attach. This, coupled with an interference fit and o-rings, provides the greatest defense against fluid leaks between the rail and the plumbing.
good read.. Im trying to get hold of some AN fittings for the rails throug work. I just thought it might be a good way to stop leaning out 4 and 6 pots. They seem to get the hottest. And i was board.
Don't stop now ezzupturbo, what your doing is a great solution for many people, and should have been offered as an cost effective alternative long ago. The only minor draw back is choice of injector, other than that your on a winner mate.
