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-   -   World Record NA VHR Build (http://www.the370z.com/engine-drivetrain/97666-world-record-na-vhr-build.html)

1slow370 03-13-2015 10:00 PM

Sure is but the reason to mount the tank low isn'tso much the frothing of oil, that WILL happen with a drysump even while running do tothe evacutaion of blow-by gas as well as oil in the scavenge stages(you count on tank design to takecar of this) but if the tank is mounted above thecrank level and you get oilleak back as the pump wears, you may endup in extreme cases with oil seeping past main seals or above piston rings and into cylinders (only on high capacity systems with a really high mounted tank. The biggest worry though is running the tank low at startup since all the oil is in the motor before the pump can pump it back into the tank in the firstfew seconds. My drysump could cy le all of the oil in the car in under 15seconds. It was a 30gpm system lol.

imjello 03-25-2015 11:27 AM

Quote:

Originally Posted by 1slow370 (Post 3019508)
yep stock rods, pistons, crank, bearings, timing gear, valves, springs, lifters, vvel, ports(nothing is ported). the only internal changes were the cams and removing the oil pump.

There was some slow secret sauce poured into the trans to help with the higher rpm shifts tho, eat that TSM lol

Quote:

Originally Posted by BGTV8 (Post 3019835)
Based on my research (JWT, Unitech, the NISMO engine-builder with Kelly Racing), with replacement rod bolts both the VQ35HR and VQ37VHR are both safe to 8800rpm (although the jury is still out on running the VVEL that hard for sustained periods - there is no real empirical detail).

With OEM rod-bolts, I'd be reluctant to exceed 8000rpm, but that is just me.

Remember, NASCAR engines run 9500rpm and more for hours and they are all >3-inch stroke.




great thread btw! I was hoping to find something like this. Sry you had to sell.

Did you ever take it to 9k? I saw you mentioned it, I have yet to watch all the videos (thank you for videos!)

and as it was asked before, the stock internals are able to support the higher then 7.5 redline easily. My goal is really just 8k with NA reliably and am starting to look into external oil pumps, as is sounds like the Nismo pump is not enough. Any advice is defiantly appreciated.

All of my cars have been NA engine builds ( 1999 civic hb & 1999 Miata ), I am collecting data for this platform as this v6 thing is new to me.

Elmo370z 04-09-2015 09:10 AM

Another question. My buddy has the newer Z-06 corvette's with a dry sump. Is it necessary for the tank to be mounted in the rear? I know the Z's have limited space in the engine bay.

bullitt5897 04-09-2015 09:13 AM

Elmo you can locate it where ever you want however I know matt's tank was stupid large and contained somewhere near 12 quarts of oil if I remember correctly... depending on the amount of oil you run will determine where you can locate the oil reservoir... However, your trunk is going to be your best bet...

bullitt5897 04-09-2015 09:15 AM

Quote:

Originally Posted by imjello (Post 3148778)
great thread btw! I was hoping to find something like this. Sry you had to sell.

Did you ever take it to 9k? I saw you mentioned it, I have yet to watch all the videos (thank you for videos!)

and as it was asked before, the stock internals are able to support the higher then 7.5 redline easily. My goal is really just 8k with NA reliably and am starting to look into external oil pumps, as is sounds like the Nismo pump is not enough. Any advice is defiantly appreciated.

All of my cars have been NA engine builds ( 1999 civic hb & 1999 Miata ), I am collecting data for this platform as this v6 thing is new to me.

He ran it that high when I was in the car... it was stupid fast... lol the gears lasted forever! 53mph in first gear!!!

DR_ 04-09-2015 09:16 AM

Quote:

Originally Posted by Elmo370z (Post 3164003)
Another question. My buddy has the newer Z-06 corvette's with a dry sump. Is it necessary for the tank to be mounted in the rear? I know the Z's have limited space in the engine bay.

The same engine is in the Z28 and the dry sump in it is in the front. So no it is not necessary.

Elmo370z 04-09-2015 09:43 AM

But those V-8's have more engine bay space. What could you relocate to fit the tank.Also doesn't the tank have to be positioned a certain way?

Elmo370z 04-09-2015 09:44 AM

I'm leaning towards going this route in my build eventually.

bullitt5897 04-09-2015 09:48 AM

We dont have the space in the fender so it wont be able to go there... the only logical space is in the trunk/hatch with your dip stick/service port facing up...

bullitt5897 04-09-2015 09:50 AM

Dry Sump Tanks at Aviaid


pick your poison...

Elmo370z 04-09-2015 01:39 PM

Thats what i figured

Elmo370z 04-09-2015 02:11 PM

Quote:

Originally Posted by bullitt5897 (Post 3164072)
We dont have the space in the fender so it wont be able to go there... the only logical space is in the trunk/hatch with your dip stick/service port facing up...

How would one go about changing his/her oil? pump it out?

Elmo370z 04-09-2015 05:59 PM

What about relocating the battery to the back, or ditching your windshield wiping fluid and putting it there, or would the location be a bad idea?

phunk 04-09-2015 06:09 PM

I just used a ruler and briefly measured my stock battery that is still in the car and it came out to 477ci. Plus or minus since I didnt get super accurate on the measurement. But that works out to 8.25 quarts.

If you custom fabricated a container for that compartment and maxed out on the dimensions that fit in there, im sure you could make 10 quarts.

bullitt5897 04-09-2015 07:29 PM

Quote:

Originally Posted by phunk (Post 3164611)
I just used a ruler and briefly measured my stock battery that is still in the car and it came out to 477ci. Plus or minus since I didnt get super accurate on the measurement. But that works out to 8.25 quarts.

If you custom fabricated a container for that compartment and maxed out on the dimensions that fit in there, im sure you could make 10 quarts.

You would also need to shave and relocate all the wiring too. But if your saying is correct you could put it there...

Elmo370z 04-09-2015 07:36 PM

Quote:

Originally Posted by phunk (Post 3164611)
I just used a ruler and briefly measured my stock battery that is still in the car and it came out to 477ci. Plus or minus since I didnt get super accurate on the measurement. But that works out to 8.25 quarts.

If you custom fabricated a container for that compartment and maxed out on the dimensions that fit in there, im sure you could make 10 quarts.

Sweet. Now would changing the oil be a major pain in the bass?

BGTV8 04-09-2015 07:52 PM

Quote:

Originally Posted by Elmo370z (Post 3164704)
Sweet. Now would changing the oil be a major pain in the bass?

To change the oil, you are going to need to be able to run a drain from the oil-tank somehow.

On my race car (not actually my Z34) the dry-sump tank feed line to the pressure stage runs from the tank (in the passenger foot-well) to the pressure stage along the passenger side of the dry-sump pan (the line is covered in anti-abrasion / insulation and attached with "p" clips to the sump) and has a t-connector in it with a cap over the "t" at he lowest point of the line. I always lock-wire the "cap" to ensure it cannot come loose and spread oil under the car, onto tyres and/or the track.

When I want to change the oil (straight after each race event), I have the car on the hoist, undo the cap on the t-fitting and voila - around 9 litres of Valvoline VR1 empties into a strategically placed 10 litre bucket.

If you are serious about a dry-sump, you'll need to arrange something similar, OR provide enough slack in the supply and return lines to the pressure/scavenge stages so you can remove the tank to empty outside the car, OR invest in a suction pump to empty the tank in the car.

You simply need to engineer a solution - and there are at leasy 3 ways you can do - possibly more that I've not suggested here.

Elmo370z 04-10-2015 10:15 AM

Quote:

Originally Posted by BGTV8 (Post 3164716)
To change the oil, you are going to need to be able to run a drain from the oil-tank somehow.

On my race car (not actually my Z34) the dry-sump tank feed line to the pressure stage runs from the tank (in the passenger foot-well) to the pressure stage along the passenger side of the dry-sump pan (the line is covered in anti-abrasion / insulation and attached with "p" clips to the sump) and has a t-connector in it with a cap over the "t" at he lowest point of the line. I always lock-wire the "cap" to ensure it cannot come loose and spread oil under the car, onto tyres and/or the track.

When I want to change the oil (straight after each race event), I have the car on the hoist, undo the cap on the t-fitting and voila - around 9 litres of Valvoline VR1 empties into a strategically placed 10 litre bucket.

If you are serious about a dry-sump, you'll need to arrange something similar, OR provide enough slack in the supply and return lines to the pressure/scavenge stages so you can remove the tank to empty outside the car, OR invest in a suction pump to empty the tank in the car.

You simply need to engineer a solution - and there are at leasy 3 ways you can do - possibly more that I've not suggested here.

Thanks that really cleared a lot of questions. Now I just hAve to figure the cost for all this fabrication.

Elmo370z 04-30-2015 11:25 PM

Anyone know how thst car held up?

bullitt5897 05-01-2015 08:52 AM

It's with a new owner now. I can ask 1slow370z as he still sees the car on visiting basis lol

Elmo370z 05-02-2015 02:27 PM

Quote:

Originally Posted by bullitt5897 (Post 3184967)
It's with a new owner now. I can ask 1slow370z as he still sees the car on visiting basis lol

Hell yea

derraj06 05-20-2015 10:40 PM

What throttle bodies did you use? I'm working on adapting some for my build and was curious if they are the same ones. PM if you'd like and thanks in advance!

1slow370 05-21-2015 12:52 AM

Car is still running strong I'm doing an oil change for him soon since he has 6000 miles on it. you would be surprised how long 12.5 quarts of premium full synthetic will hold up with a 1 quart oil filter in street/canyon/general F'n around driving.

Elmo370z 05-21-2015 02:42 AM

Does the owner plan adding support mods to break the 400 barrier?

1slow370 05-21-2015 04:16 PM

Maybe someday, more track mods are up first.

synolimit 05-21-2015 04:35 PM

Quote:

Originally Posted by derraj06 (Post 3204537)
What throttle bodies did you use? I'm working on adapting some for my build and was curious if they are the same ones. PM if you'd like and thanks in advance!

Probably maxima ones at like 70-73mm. Only issue with those is it'll be pointless with the oem mani having such a small hole even with an adapter. His mani I'm sure accepted the larger TB with a bigger hole.

DEpointfive0 05-21-2015 04:54 PM

Quote:

Originally Posted by derraj06 (Post 3204537)
What throttle bodies did you use? I'm working on adapting some for my build and was curious if they are the same ones. PM if you'd like and thanks in advance!

350Z DE TBs

synolimit 05-21-2015 05:49 PM

Quote:

Originally Posted by DEpointfive0 (Post 3205584)
350Z DE TBs

That's surprising with a different plug.

1slow370 05-21-2015 05:59 PM

Maxima 5hroottles are too big to still mount the vhrs without an adapter. The two throttles over lap. The gtm plenum was designed to accept either throttle.

1slow370 05-21-2015 06:05 PM

Quote:

Originally Posted by DEpointfive0 (Post 3205584)
350Z DE TBs

Hey guy whats up? You hear about the new car yet? Pics to phone incoming

Elmo370z 05-22-2015 03:00 AM

What new car?

1slow370 05-22-2015 08:29 PM

Its a 1974 260z but not much of it is original lol. I dont have to smog it though.

Spooler 09-03-2015 10:10 PM

One question. Did you regret going NA? I am thinking hard about going this route for a change.

1slow370 09-08-2015 02:15 PM

for the price yes, for the sound and power of gears almost never ending no.

Spooler 09-08-2015 07:22 PM

Dry sump and the intake are hard to get over, price wise. The rest is not so bad since all the work would be on me. If I can work out those 2 challenges, I may attempt something similar.

Elmo370z 09-08-2015 07:50 PM

There is a prototype dry sump in the works that is half the price 1slow paid. Far as an intake mani two projects are going on, one is dead since we havent heard much in the in the last 4 months. Waiting game unless you want to crank out some serious cash for 1 off parts. Jwt is also working on an exhaust cam and a cam conversion for the intake side.

Spooler 09-08-2015 10:03 PM

Quote:

Originally Posted by 1slow370 (Post 3206739)
Its a 1974 260z but not much of it is original lol. I dont have to smog it though.

How's the 260z going? My first Z was a 1974 1/2 260z. Wish I would have keep it.

1slow370 09-09-2015 03:46 PM

yep 74.5 260z, metalic green. working on swapping in the 350z subframes now, and picking up my new motor on friday found a deal on a vk56

James10694 12-04-2015 12:33 AM

I wish you made more videos of this thing it's a monster! The cams sound amazing

Elmo370z 12-31-2015 12:17 AM

Quote:

Originally Posted by 1slow370 (Post 3013665)
No I dropped it off around Jan 2013 or so, and I got the car bike a couple times in between so it was in and out a few times getting a little more stuff each time as I kept wanting more.

Does any or 1slow yourself, tell me a little more about the dry sump set up. I was talking to a guy today about the possible locations, They are wanting to move things around in the engine bay and im convinced that pretty much out the question, I don't want to start hacking up the car. They thought about putting the tank where the windshield wiper fluid is located. I still want to go through the truck. Then the question came up with the routing of the lines? is it possible to run the lines through the chassis, Just so they aren't expose to the elements? The next question would the pump be strong enough to feed oil to the motor while road racing, Im pretty sure Daily makes pumps strong enough. ( These are muscle car guys that don't partake in our platforms). If there is anything else missing please feel free to chime in.


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