Upgraded turbo just arrived!

[ryst]

Video is up

Those wheels look ginormous!

I remember someone telling me that they got 50whp lower results with bigger wider drag radials than street tires (on a 600 whp CTS-V)

 

[SecretSquirlTuned]

where is the video?

 

[Waterfan]

That's all folks.
OTS tune.

I'm digging the shape of the torque curve. Just from my eyeball, seems flatter and longer than other stage 3 pulls. "Peak" hp runs from about 5.4 to 6.1. Who said earlier "I'd gladly trade 45 ftlbs today for 35 ftlbs tomorrow"? Looks like this is exactly what's happening.

SS:

Can you share other driving impressions?
Is it much slower to get into boost vs. stock?
Seems like if you keep it at or above 3.5k rpms it will go like mad (where does the max torque come in on the stock turbo with full bolt-ons? 2.8k?)

Exciting!

 

[rodmoe]

where is the video?

This ???

 

[dyn085]

I'm going to assume that the chart is scaled differently for hp and tq because the graph isn't crossing at the correct rpm.

The larger tires will affect the dyno numbers and cause it to read low if the operator didn't compensate for that when setting up, so don't be too disheartened. I'm pretty confident that this will put down some decent numbers once you get a proper tune on it.

 

[razorlab]

Awesome. So much boost at the top! 250whp should be easy...

This is a friendly question and not loaded....

I'm curious how you get "250whp should be easy" from a 202whp dyno chart? What would you easily do to make 48whp more?

 

[Sourskittle]

Vvv

 

[Sourskittle]

Vvv

 

[Sourskittle]

Vvv

 

[Sourskittle]

Vvv

 

[Sourskittle]

Vvv

 

[Hijinx]

This is a friendly question and not loaded....

I'm curious how you get "250whp should be easy" from a 202whp dyno chart? What would you easily do to make 48whp more?

Disclaimer: I am aware that modifications do not add on to each other, i.e intake adds 10, exhaust adds 10, so therefore you have 20.

Anyway here's my thought pattern: Because there were no supporting mods aside from the TBE, the car put down Cobb like numbers. Myself, at stage 3 put down 199whp on Cobbs s3 93 OTS tune. A car with the stock turbo going to stage 3 gains nearly 40whp. So, applying that (probably faulty) logic, I assumed this car would probably put down 40-50 more horses after porting and supporting mods. Now that we know he has bigger tires on the car (as I have as well) swapping them out I'm guessing he'd see 210ish, so there again he'd only need 40 more.

I realize it's probably faulty logic, but I like to hope.

 

[razorlab]

Disclaimer: I am aware that modifications do not add on to each other, i.e intake adds 10, exhaust adds 10, so therefore you have 20.

Anyway here's my thought pattern: Because there were no supporting mods aside from the TBE, the car put down Cobb like numbers. Myself, at stage 3 put down 199whp on Cobbs s3 93 OTS tune. A car with the stock turbo going to stage 3 gains nearly 40whp. So, applying that (probably faulty) logic, I assumed this car would probably put down 40-50 more horses after porting and supporting mods. Now that we know he has bigger tires on the car (as I have as well) swapping them out I'm guessing he'd see 210ish, so there again he'd only need 40 more.

I realize it's probably faulty logic, but I like to hope.

Yea that is really faulty logic.

I do think the car will make more with an actual tune for that turbo, even as the car sits. Right now it's just running a Cobb OTS, and surprise, it's basically making the OTS power. The Cobb OTS maps are pretty soft on ignition timing and cam timing ,etc. As they should be. Leaves lots of room for improvement on custom tuning.

Also love to see the car on some Ethanol.

I'm not going to do any +10/+5/+2/+12/+1 part stacking logic though. Like, a tire that adds 3mph @ 6000rpm in 3rd gear will lose 8 horsepower. The only outcome that creates is disappointment.

The nice thing now, he as at least some what of a baseline to build from.

 

[Waterfan]

Water fan:
I LOVE the way it drives, and I think it will be even better after some modified tip settings are tuned in. I agree the car came on hard at 2800rpms stock and I'd say RIGHT NOW, with the OTS tune, its peaking at 3400-3500rpms. But its also building boost at 1600rpms, it just ramps up a lot smoother ( and I'm sure our rpm based hpfp is happy about that ).

So it still builds boost just driving around; its just not at 20psi while chilling anymore. I cal ALMOST pick a psi number I want to see and use the throttle to keep that psi. Like... If I said, "12psi", I could spool it to 12psi and using the throttle I could get it to stay there. Seemed like with the stock turbo is was "BAMMMM 22psi !!!" "Or..... What? You want boost?".

Kinda pointless, but I think this setup will yield better fuel mileage, if any cares, lol.

Awesome "color commentary", thanks again

Drivability improvements and predictability (if I can call it that) are more important to me than raw power for a Daily Driver. It may have as much to do with the Cobb OTS tune smoothing things out as the turbo, though. Or did it feel the same on the stock programming?

Anxious to see some custom tuning and more pulls.

 

[Sourskittle]

If you take that 8whp and add it to 204whp, that's 212whp on a OTS tune. 3whp off the record with a FULL PRO TUNE. I'll take that, lol.

In another note.... I'm impressed at 25+ psi. It held 20psi almost to redline. Fixing to load the datalog now

 

[Sourskittle]

20psi at 6200rpms
25psi peak at 4011rpms
20psi at 3400 rpms

 

[Sourskittle]

Vvv

 

[94Gt5.0]

This is a friendly question and not loaded....

I'm curious how you get "250whp should be easy" from a 202whp dyno chart? What would you easily do to make 48whp more?

Toonz breh, c'mon!!

 

[94Gt5.0]

20psi at 6200rpms
25psi peak at 4011rpms
20psi at 3400 rpms

Now that's promising!!

 

[iso100]

Wow!