Stg3 Hybrid Turbo + Stock Block Longevity

[badger.]

I'm *this* close to getting into a Uni Stg3 '19 RS3.

Does NOT have a built motor but has all other supporting mods (Uni/Iroz brands). I've been combing through a ton of forums and past threads, but many stalled out in the 2019-2020 range.
I've seen one example directly mentioned of motor failure on E85 Stg3 with TTE700 at 7500k miles, and saw some references to maybe some others but no specifics...


I guess, now that it is almost 2024, what is the consensus on running Stg3 TTE700 on a stock block? Safe, or Stupid? Would be a DD.


And all other factors aside, is Stg3 93 map safer for DD than Stg3 E85 map? (understand power would be down)


Thanks

[Krogs]

I'm *this* close to getting into a Uni Stg3 '19 RS3.

Does NOT have a built motor but has all other supporting mods (Uni/Iroz brands). I've been combing through a ton of forums and past threads, but many stalled out in the 2019-2020 range.
I've seen one example directly mentioned of motor failure on E85 Stg3 with TTE700 at 7500k miles, and saw some references to maybe some others but no specifics...


I guess, now that it is almost 2024, what is the consensus on running Stg3 TTE700 on a stock block? Safe, or Stupid? Would be a DD.


And all other factors aside, is Stg3 93 map safer for DD than Stg3 E85 map? (understand power would be down)


Thanks

17' bought it with 3k miles now 30k miles stg1+ to stg3 tte700 sb for the last 6 months and 6000 miles uni tunes.
No issues, change oil every 5k, check plugs and plug gaps every 5k.

I DD mine 60 miles a day. Winter time is 93oct, summer time is E-60/65.
I also don't beat the piss out of it everyday but yet again can on a weekend.

Biggest thing I've learned from forums and FB for a sb is if you're roll racing be above 4k rmps always.
Most tuners have kept the torque capped to not window your block but yet again it can happen.

The 700 is a great turbo for this car and boost is about 300-400 rmps later than a stg2 e85 car.

You'll love the turbo whistle and pull all the way to redline.

[yoffer]

With your concerns, Id recommend switching to the TTE700 93 oct tune and running that. I know Uni has a Flex tune for the TTE700 but I believe its for a built motor. With the Flex tunes you can adjust power output by your ethanol content to keep things in check. You could try emailing John at Uni to see if there is a stock block Flex Tune in the works for the TTE700

[Porra46]

With your concerns, Id recommend switching to the TTE700 93 oct tune and running that. I know Uni has a Flex tune for the TTE700 but I believe its for a built motor. With the Flex tunes you can adjust power output by your ethanol content to keep things in check. You could try emailing John at Uni to see if there is a stock block Flex Tune in the works for the TTE700

All the Uni Flex tunes are currently for stock block. From 91 to E85.

They have support for the TTE700 and IMS750HS turbos. All stock block files.

Sent from my SM-S908E using Tapatalk

[yoffer]

All the Uni Flex tunes are currently for stock block. From 91 to E85.

They have support for the TTE700 and IMS750HS turbos. All stock block files.

Sent from my SM-S908E using Tapatalk

Im running the IMS750HS. The TTE flex files says built engine. Maybe I’m missing something?…

[Porra46]

Im running the IMS750HS. The TTE flex files says built engine. Maybe I’m missing something?…

Maybe they have support for built block files as well?

The stock block files do not require the 4 bar map sensor or Iroz lpfp.

Sent from my SM-S908E using Tapatalk

[Flom Motorsports]

I'm *this* close to getting into a Uni Stg3 '19 RS3.

Does NOT have a built motor but has all other supporting mods (Uni/Iroz brands). I've been combing through a ton of forums and past threads, but many stalled out in the 2019-2020 range.
I've seen one example directly mentioned of motor failure on E85 Stg3 with TTE700 at 7500k miles, and saw some references to maybe some others but no specifics...


I guess, now that it is almost 2024, what is the consensus on running Stg3 TTE700 on a stock block? Safe, or Stupid? Would be a DD.


And all other factors aside, is Stg3 93 map safer for DD than Stg3 E85 map? (understand power would be down)


Thanks

i responded to your other thread on this topic. to answer the questions here though, from what I've seen and read from others: running 93 is always safer on these cars (with a stock block) than running e85. yes there are tunes that keep the torque low for a stock block application, but one torque spike and you've likely bent a rod or worse. there are plenty of people that have put thousands if not tens of thousands of miles on their cars with stock blocks and a tte700

[badger.]

i responded to your other thread on this topic. to answer the questions here though, from what I've seen and read from others: running 93 is always safer on these cars (with a stock block) than running e85. yes there are tunes that keep the torque low for a stock block application, but one torque spike and you've likely bent a rod or worse. there are plenty of people that have put thousands if not tens of thousands of miles on their cars with stock blocks and a tte700

Appreciate it. I'm going ahead with the car, I plan to have it mapped down to 93 ASAP, at a minimum. I will also have the stock turbo and can swap that back in and just run it as Stg 2 if I still can't sleep at night.

[8STTRS]

I'm personally of the mind that if you buy that car, just get the bottom end built shortly thereafter. If the car already has all of those items, then it's an easy kill. I don't know why people risk windowing their block.

[slammin86]

20k miles strong on e85. Daily driver also.

[S3DUDE]

20k miles strong on e85. Daily driver also.

I don't doubt it but he was asking for a Stage 3 turbo hybrid specific. Are you running a Stage 2 on a stock turbo? if so we are talking about true apples and oranges comparison. The OP is asking on inputs/feedback on a stage 3 Hybrid turbo.

[cseaman]

I went TTE700 on my SB 2018 at 26k miles in 2022 and sold it at 30k. New owner is at 35k and seems to be really enjoying it on 91 at Denver altitude. I ran 93 blended to e30 the whole time and it was a riot.

It's hard not to say something rhetorical to a stupid question about whether 93 is safer than E85.

[slammin86]

I don't doubt it but he was asking for a Stage 3 turbo hybrid specific. Are you running a Stage 2 on a stock turbo? if so we are talking about true apples and oranges comparison. The OP is asking on inputs/feedback on a stage 3 Hybrid turbo.

I am fully aware of what the OP was asking and I answered his question accordingly.

[context.eax]

I went TTE700 on my SB 2018 at 26k miles in 2022 and sold it at 30k. New owner is at 35k and seems to be really enjoying it on 91 at Denver altitude. I ran 93 blended to e30 the whole time and it was a riot.

It's hard not to say something rhetorical to a stupid question about whether 93 is safer than E85.

This was Stage 3 Unitronic?

Did you ever try using the Stage 3 91 oct tune and if so how does it compare to the 93 oct tune?
At the Uni web page they list the 91 tune at ~550 hp and 93 tune at 650 hp.
Reason I ask is that I just ordered a TTE700 and I was planning on using the 91 Oct map on 93 oct fuel. Our fuel here is not as good as it used to be and I now see like -5 deg retardation on Stage 2 93 tune when using 93 oct.

[cseaman]

This was Stage 3 Unitronic?

Did you ever try using the Stage 3 91 oct tune and if so how does it compare to the 93 oct tune?
At the Uni web page they list the 91 tune at ~550 hp and 93 tune at 650 hp.
Reason I ask is that I just ordered a TTE700 and I was planning on using the 91 Oct map on 93 oct fuel. Our fuel here is not as good as it used to be and I now see like -5 deg retardation on Stage 2 93 tune when using 93 oct.

Yes, I ran the Uni 91 file for the first two or three tanks after getting the TTE700 on. It was pretty quick and definitely way stronger on the top end than 1+ on E85. The 93 file was stronger, but if you have weak 93, I wouldn't take the risk. You'll have plenty of fun on the 91 file and not be stressing as much.