patsmx5

iTrader: (16)

Yes sir. 90% of the welds here were done with a Norther Tool flux core that had a bad voltage control system for the spool, so wire speed was whtatever it felt like being. Then a few days ago, it finally quit all together and I bought a better Lincoln flux core, and it works great. If you give me a good welder I can make nice welds, I have about 1,600 hours of welding experience.

In this pic, welds on left are old welder, weld on right is new welder.

Faeflora

iTrader: (2)

dude

this is gay

stop it

just buy my borg s366 hotside. that includes tube mani, quick spool valve (which actually works), downpipe, exhaust. .

sixshooter

iTrader: (12)

^Knows gay.

patsmx5

iTrader: (16)

Too much $$$, doesn't work with a/c and P/S.

18psi

iTrader: (76)

we're still waiting for you to make big power sweet pea

stefanst

iTrader: (1)

If you're having trouble scaling down the oil flow, you could also try this little pump:
http://www.ecotrons.com/files/ECOTRO...cal%20spec.pdf

aidandj

iTrader: (5)

Are you using the giant pump to feed the turbo? Or to scavenge it?

Joe Perez

iTrader: (8)

I posted links to two specific FETs which would work. One was a chassis-mount style with screw terminals, the other was a through-hole part. Selection between the two is up to the user, based on how you want to wire it.

Not sure if this link will take you to the correct post, but it's post #38 in this thread: https://www.miataturbo.net/general-m...8/#post1304916

deezums

iTrader: (3)

That's a scavenge pump. Main oil pump and gravity feed the turbo, but it's too low to gravity drain back to the pan.

I really wanted to make little oil sumps that attach to the oil drain flange on turbos. Then if a little oil did make it past a pressure check valve in the feed line it would have a place to go.

Here's what f-body guys like to use on the oil feed. Takes a third a pound of pressure to pop.

McMaster-Carr

Joe Perez

iTrader: (8)

Recognizing that I'm bumping a relatively old post in the thread...

There's nothing inherently wrong with gear-type oil pumps. They were used on every single Volkswagen & Porsche engine from the 1930s through the late 1970s (a design noted for its uncanny durability), and were a standard feature of many other OEM designs as well.



Obviously, the need to fully seal the driveshaft of the pump against leakage is absent from engine-driven pumps, but is present in external motor-driven pumps of all designs (including georotor pumps) save for diaphragm pumps.

Georotor pumps are used on modern engines mostly for reasons of cost and packaging size. As they can be fitted coaxially with the crankshaft, they occupy less space, and require less complex machining to produce. These criteria are wholly economic in nature, and have nothing at all to do with either reliability or ease of leak-proofing.

deezums

iTrader: (3)

My post there was in reference to the noise of a gear driven oil pump, they are loud as hell. On an engine driven oil pump you wouldn't much notice the noise, especially considering all the other 1930's tech powering the pump.

You saw the video of it running, compared to a diaphragm pump?

patsmx5

iTrader: (16)

So...

My ebay turbo setup....

In 3rd gear on VD.

With ebay taco manifold/turbos/BOV/wastegate








































Did this.



You will not the power is kind of not dying up top either.

aidandj

iTrader: (5)

So is that like 200hp on a dynojet?

curly

iTrader: (25)

No at least 270

pdexta

iTrader: (17)

Nice, that's some awesome numbers on a pretty slim budget.

patsmx5

iTrader: (16)

No, it's like 415 on a dynojet.


Thanks! I think it's awesome power for the budget. Hell plenty of people not making this much power with any budget.

I made some changes to the fuel system, so this is only 80% duty cycle in the primaries. Will turn up the boost tomorrow.

18psi

iTrader: (76)

can you please do a pull in 5th from 2k?
I know it's hard, but surely there's gotta be a road somewhere in your state to do this.
you're making great power, I bet it's a monster, but I care more about the shape of the curve than peak numbers

patsmx5

iTrader: (16)

I know. This isn't a final plot, just a plot for tuning as I go. Thought I'd share. When it's at final boost with this fuel setup, I'll do that. For you.

I've been making short pulls for now because it's stupid loud, waiting on Magnaflow muffler and cat to arrive. And other stuff I ordered.

patsmx5

iTrader: (16)

Also V, what AFR for >30 PSI on E85?

18psi

iTrader: (76)

Gotcha, makes sense.
As for afr, e85 can still be kept at 12 unlike pump where you'd want to fatten it up with serious boost.

looks like it dips quite a bit past 7, lean it back out, you'll gain more IDC and pick up power.

that power should be good for 130mph trap speeds, and put a hurting on most street cars that are not tx2k cars