sutyak's turbo focus

[sutyak]

It is asking me to sign in to see the vid. Do you need to share it or something?

Ah thanks! I hadn't made it public yet.

[sutyak]

One more video. 12.43 @ 115mph outside of car, complete with commentary from my dad and brother.

[sutyak]

Just ordered a custom ceramic ball bearing 58 trim GTX2871R from turbolabofamerica.com. They are the ones who refreshed my 3082R.
Basically I miss how my car felt with the GT2871R, and hate it around town with the 3082R. I guess I'm just not a big turbo guy. I also needed to remember to build a car that I enjoy 100% of the time and not just at the drag strip. At the track, launching at 7K the 3082R was perfectly at home. Anywhere else and it lets me know it needs another .5-1.0 liter to get it moving. I'm also going to route the wastegate dump back into the exhaust.
The company Turbo Labs is pretty backed up, so I expect it to be 3-4 weeks before I get the turbo.
I'll sell the 3082R, without the turbine housing, after I get the GTX2871R in. I'm going to keep the turbine housing in case I want to try another 30xx in the future. I like to keep my options open. The GTX2871R will be the FIFTH turbo/variant I've had on this car, so I make absolutely no promises of sticking to it.

The 58 trim GTX2871R has a compressor map nearly identical to the 3076R. Obviously the smaller turbine housing will ultimately restrict the full potential, but that's the trade off for better street fun.

This is the compressor map I came up with for the GTX2871R. The orange line is based on actual logged spool from my previous GT2871R, which I expect should be nearly identical. The orange line above 20psi is approximated.

[Dan B.]

Look like a weather map. Think I see rain coming.

[JeffreyCole]

It is...

It's a weather map for bringing the HURT.

[SlowSix]

I still never understood compressor maps.
But I agree with you, I'd rather have a car that makes less power but is more fun on the street than a car that is faster down the strip.

[sutyak]

Here we go again. Hope to get it on in the next couple weeks or so. Only the 5th turbo I've had on this car. I might have a problem.

[phillysrt4]

I still never understood compressor maps.

for your convenience...

http://www.steelcitymusclecars.com/f...-A-Quick-Guide

I never got to the turbine side, but this should help clear up a lot.

[sutyak]

HTA 3082R out. GTX2871R going in. Still need to modify the downpipe a bit, make the 3" inlet, and fab up a new 2" hot side.

[PaxtonShelby]

Troll could have that done in 12 minutes...

[phillysrt4]

Troll could have that done in 12 minutes...

one handed in the dark :)


On a serious note, I don't blame you for going with the GTX2871R. The response and power delivery is far friendlier for the street.

[sutyak]

Troll could have that done in 12 minutes...

Only if it were a Miata.

On a serious note, I don't blame you for going with the GTX2871R. The response and power delivery is far friendlier for the street.

Yeah that's the plan! I can't wait to get it in and tuned.

[phillysrt4]

Neither can I!

There's an old supra joke that goes like this:

Q: What do a 400hp supra and an 800hp supra have in common?
A: They both run 12's

The joke, while not (entirely) based in fact, alludes to the lag of big turbos in order to get that high horsepower dyno queen number. For the street, I'd also comprise toward spool over peak. Post up when you have some data on the car. Can't wait to see it.

[sutyak]

Downpipe is now modified for the 2.5" v-band GT28 turbine housing. The piping is still 3", just massaged enough to mate it to the 2.5" flange.
Next up is routing the wastegate back into the downpipe.

[PaxtonShelby]

I love how quickly you get your work done once you get started. Cooler air is coming - can't wait to see how she runs with the new hairdryer.

[sutyak]

I love how quickly you get your work done once you get started. Cooler air is coming - can't wait to see how she runs with the new hairdryer.

Thanks! This will be a bit slower than usual with my son in soccer and cub scouts, and I'm the tiger cub den leader this year. There are really only a few things to do, so I'm hoping it doesn't drag on too long. I definitely want it running strong for the October rental.

[sutyak]

My car has been on the back burner due to work, soccer, and cub scouts. Also working on the wife's commuter ('02 Toyota Echo) comes before the play car. It got new rear brakes and a shiny new cat back.

[Dan B.]

Floor pans look clean for a 2002.

[sutyak]

Floor pans look clean for a 2002.

It's been a good car the past year and a half we've had it. 150K miles on it. I rebuilt the top end right after we bought it due to a coolant leak, along with a bunch of new bushings, motor mounts, etc. I love working on this little car. Everything is dirt cheap and simple to replace. The entire top end rebuild kit (head gasket, valve seals, etc) was only $50. Nearly 40mpg and it's not a complete dog either.

[phillysrt4]

when does the echo get a turbo kit? :)