Trade me any one of those LX470's for my LX450. I will have all the body work done and resprayed black for you. Im in Denver and will even drive it out to Moab for you.
Builds 80 series where to start! Again.... (11 Viewers)
- Thread starter scottryana
- Start date
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- Thread starter
- #183
Parts slowly starting to trickle in.
Turbo
1.5" wastegate
Turbo
1.5" wastegate
Wow! $20 each for those! Man....What a DEAL!
- Thread starter
- #185
Just for size reference. Not everyone has a 4202 laying around. 
That's a big ol' turbo! Or an example of the shrinking US dollar!
Yes, I know. My wife would have said it was at LEAST 12" in diameter.
- Thread starter
- #188
Well you have been lying to her about 8" for all those years. 
It is a 5" intake, 3.5" output on the cold side.
The hot side is going to be a Tial SS housing it hasn't arrived. But it will be 2.75" v-band inlet with a 4" downpipe outlet. A/R 1.30.
It is a 5" intake, 3.5" output on the cold side.
The hot side is going to be a Tial SS housing it hasn't arrived. But it will be 2.75" v-band inlet with a 4" downpipe outlet. A/R 1.30.
- Thread starter
- #189
Another small piece of the puzzle. If this one works it is going to be my best idea yet! Lol
So the 80 uses a shim on bucket design. Where under the cam you have a bucket that sits on top of the valve and spring and then you adjust lash by adding a thin shim to the top of that bucket.
Something similar to this.
In situations where you have increased the spring pressure, or increased the lift, or increased the lift speed of the cam, or increased the RPM's, you have the potential of that shim being pushed off the bucket because of spring bounce and banging around inside the head causing all kinds of problems.
One way to get around this is to do a shim under bucket design where you place the shim inside the bucket and it spaces the bucket up to the cam. The only problem with this is if the bucket wasn't designed to wear against the cam you get accelerated wear, metal flake, or if the bucket has lips to retain the shim they catch the cam.
This had been figured out 9+ years ago on the Supra's using later MR2 buckets. In the Supra it also reduces a lot of weight from the valve train. But obviously the MR2 buckets are way too small for the 1FZ.
So the Nissan series of engines including the GT-R, use a shimless bucket for the cam to ride on and compress the spring and move the valve. They accomplish this by offering many different sizes of "lifter-valves" these have the "shim" built into the underside of the bucket.
I know I am probably going to have to mill the underside to get it to match the valve lash perfectly, but you get a shimless system, a hardened bucket that even has a DLC (Diamomd Like Coating) on the face to reduce friction and eleminate wear!!
I won't know for certain if they will work until the Ferrea stuff gets here but that is supposed to be Monday.
Until then check these bad boys out! Lol
So the 80 uses a shim on bucket design. Where under the cam you have a bucket that sits on top of the valve and spring and then you adjust lash by adding a thin shim to the top of that bucket.
Something similar to this.
In situations where you have increased the spring pressure, or increased the lift, or increased the lift speed of the cam, or increased the RPM's, you have the potential of that shim being pushed off the bucket because of spring bounce and banging around inside the head causing all kinds of problems.
One way to get around this is to do a shim under bucket design where you place the shim inside the bucket and it spaces the bucket up to the cam. The only problem with this is if the bucket wasn't designed to wear against the cam you get accelerated wear, metal flake, or if the bucket has lips to retain the shim they catch the cam.
This had been figured out 9+ years ago on the Supra's using later MR2 buckets. In the Supra it also reduces a lot of weight from the valve train. But obviously the MR2 buckets are way too small for the 1FZ.
So the Nissan series of engines including the GT-R, use a shimless bucket for the cam to ride on and compress the spring and move the valve. They accomplish this by offering many different sizes of "lifter-valves" these have the "shim" built into the underside of the bucket.
I know I am probably going to have to mill the underside to get it to match the valve lash perfectly, but you get a shimless system, a hardened bucket that even has a DLC (Diamomd Like Coating) on the face to reduce friction and eleminate wear!!
I won't know for certain if they will work until the Ferrea stuff gets here but that is supposed to be Monday.
Until then check these bad boys out! Lol
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- Thread starter
- #190
This was my big concern when I mentioned earlier with tire selection, and then saw the guy in the 60's section doing a build.
To me this looks way too small.
And the same with the 80.
Both are running about a 25.5" tire on an 18" rim. Which is a very common tire size for older performance cars. But for something the 80's size it doesn't look right. The other thing I bet neither the 60 or the 80 guy thought of was the load rating for the small sports car tires. I would imagine they are not rated to handle the 80's ummm girth.
The saving grace is that even though I found a tire almost 4" bigger, a more common tire size like a 315/35 R20 which is only about 3" larger might not look as bad as I thought.
To me this looks way too small.
And the same with the 80.
Both are running about a 25.5" tire on an 18" rim. Which is a very common tire size for older performance cars. But for something the 80's size it doesn't look right. The other thing I bet neither the 60 or the 80 guy thought of was the load rating for the small sports car tires. I would imagine they are not rated to handle the 80's ummm girth.
The saving grace is that even though I found a tire almost 4" bigger, a more common tire size like a 315/35 R20 which is only about 3" larger might not look as bad as I thought.
- Thread starter
- #191
Early Xmas. Ferrea stuff showed up 3 days early! but I had to go check out the hot rods in Moab tonight, lots of awesome cars. I will take real pics tomorrow at the park but tonight they were cruising around.
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- Thread starter
- #192
Ok the Ferrea stuff!! There is a reason they are the best in the business. Everything was perfect. Packaged with care on cardboard, shrink wrapped, and labeled. And you have to remember all of this was custom and made to order, not like it is a huge difference from their normal stuff but still nice to see it wasn't just thrown in a ziploc bag.
Valve Guides x 24
Titanium Retainers
Spring Seats
+3mm intake valve, +1mm exhaust valve super alloy
Cool to see the intake valve stem is back cut for more flow
Valve Guides x 24
Titanium Retainers
Spring Seats
+3mm intake valve, +1mm exhaust valve super alloy
Cool to see the intake valve stem is back cut for more flow
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- Thread starter
- #193
Dual spring valve springs. Seat pressure 75lbs at 33mm, coil bind at 17mm, I am only going to run 10.35mm/10.55mm
Spring retainer fits the solid bucket, I really need to pull the head out of the box to test it.
Spring retainer fits the solid bucket, I really need to pull the head out of the box to test it.
- Thread starter
- #194
Thinking about the exhaust manifold more and more, I was having a hard time conceptualizing how the 1.5" schedule 10 stainless tubes were all going to fit. A 1.5" schedule 10 is actually 1.900" OD and 1.682 ID all going into the Tial flange which is only 2.75" ID. While it makes a lot of sense especially with our Inline 6 and the 1FZ's firing order to do a twin scroll, the Tial SS exhaust housings are about 1/2 the weight. Which I thought was important to minimize since that is a lot of weight hanging off the exhaust manifold.
And while I have zero doubts that my friend and fabricator could make one, I thought there has to be a better more precise way, then eyeballing and cutting tubes. So I started searching for CNC turbo merges, and found this in Finland of all places!!
I talked to Axel (how could you not go into cars with a name like that) and he said he has done many 6-1 merges before but always for a T4 flange but that he had no problem doing one for the Tial SS housing v-band. He sent me a picture of a 4-1 with the smaller GT35 Tial vband and it looks nice!
So I think I am going to give Elmer Racing of Finland a go at making a 6-1, 1.900" Tial GT42 merge collector.
And while I have zero doubts that my friend and fabricator could make one, I thought there has to be a better more precise way, then eyeballing and cutting tubes. So I started searching for CNC turbo merges, and found this in Finland of all places!!
I talked to Axel (how could you not go into cars with a name like that) and he said he has done many 6-1 merges before but always for a T4 flange but that he had no problem doing one for the Tial SS housing v-band. He sent me a picture of a 4-1 with the smaller GT35 Tial vband and it looks nice!
So I think I am going to give Elmer Racing of Finland a go at making a 6-1, 1.900" Tial GT42 merge collector.
Why not do (2) 3 into 1 and (1) 2 into 1 larger instead of all 6 into 1? It might make it easier to match tube lengths and be easier to fabricate. Pros/Cons?
- Thread starter
- #196
Space is the first limitation with a 3-1, 2-1 setup. It makes the merges much longer, and it was my idea to do an upside down turbo and hang it from the flange to make routing the exhaust and charge pipe easier, it also makes the oil drain to the pan a straight shot and the water lines easier to plumb.
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- Thread starter
- #197
Well it is a success. If anyone else wants to try something like this while I go away for 18 months, it works and fits perfectly! The only piece missing now from a badass head is the Kelford cams and then putting it all together. The cams I was told are 60 days out and unfortunately I won't get to work on it when they show up. But if you are wondering.
Intake
Exhaust
Intake
Exhaust
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SEXY... ALL THE WAY Ryan.....
- Thread starter
- #199
Haha thanks Beno, this project has me really excited. Toyota design with a little extra sprinkled in the mix. I think of all my projects this one is the one that makes me think about the technical side the most.
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Finnyfam60
Driving miss daisy
no, must be a round plastic receptacle for hot or cold liquid containers to be technical!
