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      04-01-2021, 12:44 PM   #177
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Quote:
Originally Posted by ARC550 View Post
Hey Tom!

i know a few people with the G1+ kit and they run the GTS DCT flash and have no issues... why do some have issues with the SC kit and others don't? odd...
Have you seen this also?
Never liked the GTS transmission flash, both on the airstrip and track. Always used EU software here.
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      04-01-2021, 11:26 PM   #178
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Recently had rod bearings and new O2's installed. While I was at it, I switched from the 98mm pulley to the 96.5mm on my G1. According to ESS, I should have picked up .5-.7psi. However, I seem to have actually lost .5psi according to my P3 gauge with analog sensor t tapped in line to the bypass assembly. Gauge readings have been extremely consistent to date.

Previously - 98mm pulley, 91oct file, 92oct fuel. Consistently hit peak of 7psi ish over the 1200 miles I had it installed.

Currently - 96.5mm pulley, 91oct file, 92oct fuel. First drive (200 miles) peak boost maxed at 6.8psi. Second drive (50 miles) peak boost maxed at 6.6psi.

Conditions are not a factor either. All mileage above was roughly same elevation (close to sea level) same outside temps (all within maybe 10 degrees).

Not sure what would cause an immediate small drop in psi exactly when a new, smaller pulley was installed. It obviously can't be the pulley itself. Not sure where to start looking though. Thoughts?
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      04-01-2021, 11:47 PM   #179
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Quote:
Originally Posted by tom @ eas View Post
Never liked the GTS transmission flash, both on the airstrip and track. Always used EU software here.
What's the difference between EU software and US software? Very interested.
Please provide more details!
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      04-02-2021, 12:57 PM   #180
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Quote:
Originally Posted by kyrix1st View Post
What's the difference between EU software and US software? Very interested.
Please provide more details!
EU software feels more refined, quicker/firmer shifts. M3 can still bark the tires @ WOT shifting to 3rd. Defaults to Auto rather than D upon startup.

GTS has increased fluid capacity and external cooler, it was never meant for non-GTS variants.
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      04-02-2021, 12:59 PM   #181
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Quote:
Originally Posted by astris View Post
Recently had rod bearings and new O2's installed. While I was at it, I switched from the 98mm pulley to the 96.5mm on my G1. According to ESS, I should have picked up .5-.7psi. However, I seem to have actually lost .5psi according to my P3 gauge with analog sensor t tapped in line to the bypass assembly. Gauge readings have been extremely consistent to date.

Previously - 98mm pulley, 91oct file, 92oct fuel. Consistently hit peak of 7psi ish over the 1200 miles I had it installed.

Currently - 96.5mm pulley, 91oct file, 92oct fuel. First drive (200 miles) peak boost maxed at 6.8psi. Second drive (50 miles) peak boost maxed at 6.6psi.

Conditions are not a factor either. All mileage above was roughly same elevation (close to sea level) same outside temps (all within maybe 10 degrees).

Not sure what would cause an immediate small drop in psi exactly when a new, smaller pulley was installed. It obviously can't be the pulley itself. Not sure where to start looking though. Thoughts?
Doesn't make sense, unless there's a small boost leak somewhere.
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Last edited by tom @ eas; 04-02-2021 at 01:35 PM..
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      04-02-2021, 01:26 PM   #182
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Quote:
Originally Posted by tom @ eas View Post
Quote:
Originally Posted by astris View Post
Recently had rod bearings and new O2's installed. While I was at it, I switched from the 98mm pulley to the 96.5mm on my G1. According to ESS, I should have picked up .5-.7psi. However, I seem to have actually lost .5psi according to my P3 gauge with analog sensor t tapped in line to the bypass assembly. Gauge readings have been extremely consistent to date.

Previously - 98mm pulley, 91oct file, 92oct fuel. Consistently hit peak of 7psi ish over the 1200 miles I had it installed.

Currently - 96.5mm pulley, 91oct file, 92oct fuel. First drive (200 miles) peak boost maxed at 6.8psi. Second drive (50 miles) peak boost maxed at 6.6psi.

Conditions are not a factor either. All mileage above was roughly same elevation (close to sea level) same outside temps (all within maybe 10 degrees).

Not sure what would cause an immediate small drop in psi exactly when a new, smaller pulley was installed. It obviously can't be the pulley itself. Not sure where to start looking though. Thoughts?
Doesn't make sense, unless there's a small boost leak somewhere.
Exactly. The actual psi values aren't super pertinent, but the decease in a previously consistent value is (especially when expecting an increase).

I'm at a loss here. Don't even know where to start looking. Going for another drive now to see if there is any change.
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      04-02-2021, 01:35 PM   #183
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Quote:
Originally Posted by astris View Post
Exactly. The actual psi values aren't super pertinent, but the decease in a previously consistent value is (especially when expecting an increase).

I'm at a loss here. Don't even know where to start looking. Going for another drive now to see if there is any change.
Check for a weak tensioner as they commonly fail with age, and will allow for belt slip.
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      04-02-2021, 04:15 PM   #184
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Quote:
Originally Posted by tom @ eas View Post
Check for a weak tensioner as they commonly fail with age, and will allow for belt slip.
Interesting. The shop actually had issues with ESS supplied belt sizes. None of the supplied belts fit the 98mm and they had to use a 6pk2135. The 6pk2120 wouldn't fit the 96.5mm either and they had to use a 6pk2126.

What's strange though is pre-G1 kit, the correct OEM size belt fit fine with zero issues. Car has 47k miles, with only 1500 miles on the kit, and didn't appear to have any slip with the 98mm.

Might just swap the old 98mm pulley back in, see what happens, then go from there.

Last edited by astris; 04-02-2021 at 06:01 PM..
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      04-29-2021, 10:19 PM   #185
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Quote:
Originally Posted by tom @ eas View Post
Quote:
Originally Posted by ARC550 View Post
Hey Tom!

i know a few people with the G1+ kit and they run the GTS DCT flash and have no issues... why do some have issues with the SC kit and others don't? odd...
Have you seen this also?
Never liked the GTS transmission flash, both on the airstrip and track. Always used EU software here.
Tom,

I see you have mentioned the EU DCT software a few times as being a good option for supercharged cars. With that being said doesn't ESS offer a DCT tune specifically for superchargers? Is the ESS DCT tune for superchargers actually just the EU tune? Im curious as to why you mention the EU tune when ESS has their own SC DCT tune offering.

Thanks!
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      04-29-2021, 10:28 PM   #186
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Quote:
Originally Posted by Joshbot007 View Post
Tom,

I see you have mentioned the EU DCT software a few times as being a good option for supercharged cars. With that being said doesn't ESS offer a DCT tune specifically for superchargers? Is the ESS DCT tune for superchargers actually just the EU tune? Im curious as to why you mention the EU tune when ESS has their own SC DCT tune offering.

Thanks!
I'm not aware of anyone offering a custom transmission tune, you would need to ask ESS directly for details. Otherwise, we're happy with how the EU flash has performed over the years.
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      06-21-2021, 11:33 PM   #187
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Quote:
Originally Posted by tom @ eas View Post
Quote:
Originally Posted by Joshbot007 View Post
Tom,

I see you have mentioned the EU DCT software a few times as being a good option for supercharged cars. With that being said doesn't ESS offer a DCT tune specifically for superchargers? Is the ESS DCT tune for superchargers actually just the EU tune? Im curious as to why you mention the EU tune when ESS has their own SC DCT tune offering.

Thanks!
I'm not aware of anyone offering a custom transmission tune, you would need to ask ESS directly for details. Otherwise, we're happy with how the EU flash has performed over the years.
Hi Tom

From where can I get the EU DCT flash? Would you be able to help with that?
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      06-21-2021, 11:39 PM   #188
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Quote:
Originally Posted by Usef_Afande View Post
Hi Tom

From where can I get the EU DCT flash? Would you be able to help with that?
We perform in house flashing only, sorry.
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      06-23-2021, 04:51 PM   #189
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G1 g1+

Would be intrested to know everyone's boost numbers and pulley pulley set up. I am running 90mm with old 650 crank and meth, 8 psi. Also have ARH double 3 in exhaust. With factory ess tune
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      08-20-2021, 06:26 AM   #190
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@tom,

Curious what you've seen in terms of peak boost numbers from winter to summer temps?

Still tying to determine if something is off with my setup. With my 98mm, I was hitting 7 psi in fall/winter/early spring here in Seattle. As soon as I swapped to a 96.mm (still early spring) I only saw a peak of 6.8. With summer temps in the high 70s or 80s, I see 6.4 to 6.6 max, which seems low for a 96.mm.

I'm trying to figure if it's all outside temp related or there actually is an issue. The 96.5mm in summer absolutely feels slower than the 98mm in winter. Honestly, it's felt slower ever since I had the 96.5mm installed.

I have been waiting for temps to drop to see what kind of PSI I will see, but I'm getting antsy.
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      08-20-2021, 11:42 AM   #191
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Psi, is resistance in the manifold to measure
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      08-20-2021, 01:59 PM   #192
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Quote:
Originally Posted by astris View Post
@tom,

Curious what you've seen in terms of peak boost numbers from winter to summer temps?

Still tying to determine if something is off with my setup. With my 98mm, I was hitting 7 psi in fall/winter/early spring here in Seattle. As soon as I swapped to a 96.mm (still early spring) I only saw a peak of 6.8. With summer temps in the high 70s or 80s, I see 6.4 to 6.6 max, which seems low for a 96.mm.

I'm trying to figure if it's all outside temp related or there actually is an issue. The 96.5mm in summer absolutely feels slower than the 98mm in winter. Honestly, it's felt slower ever since I had the 96.5mm installed.

I have been waiting for temps to drop to see what kind of PSI I will see, but I'm getting antsy.
It will change very slightly like in your example, but there are all sorts of variables involved (IATs, weather, elevation, etc,).
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      01-01-2022, 03:14 AM   #193
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Is there a different tune for methanol injection?
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      01-01-2022, 02:56 PM   #194
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Is there a different tune for methanol injection?
No
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      07-13-2022, 09:26 PM   #195
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Where is the oil drain line on the G1? Is it different from the previous ESS SC's for the e9x?
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      07-13-2022, 11:57 PM   #196
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Where is the oil drain line on the G1? Is it different from the previous ESS SC's for the e9x?
For the supercharger? The oil needs to be evacuated using suction on the G1. The kit comes with a large syringe. I used a fluid vacuum on mine. Easy peasy.
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      09-13-2022, 08:56 PM   #197
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Could someone upgrade their G1 system to a G1+ system if they wanted to run e85? I imagine that it's similar to running methanol in terms of keeping the engine cooler and keeping timing in check.
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      09-13-2022, 11:27 PM   #198
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Could someone upgrade their G1 system to a G1+ system if they wanted to run e85? I imagine that it's similar to running methanol in terms of keeping the engine cooler and keeping timing in check.
Yes.
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