Protomotive upgrade nearing completion
Congrats John! I've been following your thread and am very excited to see the results. I can almost see the smile on your face.
I've been contemplating getting upgraded turbos, but really don't want to get any more lag. I know this sounds contradictory, but it's been almost a decade since the k16/24 units were introduced and I expect there has been significant progress in this regard. Did you research ball bearing options? Any pros/cons?
I've been contemplating getting upgraded turbos, but really don't want to get any more lag. I know this sounds contradictory, but it's been almost a decade since the k16/24 units were introduced and I expect there has been significant progress in this regard. Did you research ball bearing options? Any pros/cons?
Ari,
I talked to Todd (Proto) about Garret BB turbos.
My Euopipe will not fit them, my headers will not fit them,
You need water cooling lines and different oil lines. Not exactly
a "bolt on" turbo. So, you need custom made Headers (like Divexx, Markski,
Ohio GT2, etc. and custom exhuast, etc.) Not Cheap.
MK
I talked to Todd (Proto) about Garret BB turbos.
My Euopipe will not fit them, my headers will not fit them,
You need water cooling lines and different oil lines. Not exactly
a "bolt on" turbo. So, you need custom made Headers (like Divexx, Markski,
Ohio GT2, etc. and custom exhuast, etc.) Not Cheap.
MK
Ari,
No, I did not research the ball bearing turbos at all and after commiting to these K24/18's, I was beginning to think that maybe I should have...but now that I have driven this package, it's a non issue. With this set-up the word lag will vanish from your vocabulary
I'm serious - I just drove 35 miles to work and there is so much response it feels like a normally aspirated motor. Then when the boost does come on - it's obvious it is a turbo charged car. I am still very surprized by this aspect because I drove a base 600 K24/18G car last fall and it had a lot of lag. I know there is lag inherent in all turbos, but this actually feels like there is none. Todd has designed an awesome upgrade in the 700 level kit. You would really have to drive it to understand. If you go the Protomotive 700 route, I would not even worry about lag being an issue, unless something is unique to my V-flow, B6 intercooler and stock Y-pipe configuration. Maybe someone with a Proto 700 with the larger Y-pipe and twin filter can chime in with their thoughts on lag?
No, I did not research the ball bearing turbos at all and after commiting to these K24/18's, I was beginning to think that maybe I should have...but now that I have driven this package, it's a non issue. With this set-up the word lag will vanish from your vocabulary
I'm serious - I just drove 35 miles to work and there is so much response it feels like a normally aspirated motor. Then when the boost does come on - it's obvious it is a turbo charged car. I am still very surprized by this aspect because I drove a base 600 K24/18G car last fall and it had a lot of lag. I know there is lag inherent in all turbos, but this actually feels like there is none. Todd has designed an awesome upgrade in the 700 level kit. You would really have to drive it to understand. If you go the Protomotive 700 route, I would not even worry about lag being an issue, unless something is unique to my V-flow, B6 intercooler and stock Y-pipe configuration. Maybe someone with a Proto 700 with the larger Y-pipe and twin filter can chime in with their thoughts on lag?
Set gain can be even left alone at zero. Or if u want to play around set it 20% less of waht ur boost setting (%) value is...
markski
markski
__________________

2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL

2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
Hi Mark,
Thanks for the advice.
From what I have been told by Todd, the set gain is the setting at which the wastegate begins to open. When set at "0", it defaults to .8 kpa (.8 bar). Todd mentioned you can tweak it a little for a slightly better boost response, but he usually just sets it at "0". Todd mentioned .85 as a possible setting, which would make sense, but so far I have just set it at "0". I would like to experiment a little and try to tweak the setting to see the difference, but I want to be certain before I change the setting so dramatically. The Greddy manual shows the "set gain" at .65 on a "sample low boost setting of 1 bar" and .85 on "sample high boost setting of 1.2 bar". After considerable thought regarding this setting and your advice to use 20% of max boost, I conclude as follows:
My every day "low'" setting is 1.1 bar (max boost). 20% of that is .22 bar, therefore, if I understand you correctly, I could possibly adjust the "set gain" to .88, which would hold the wastegates closed a little longer before they begin to open.
Is this correct?
Thanks for the advice.
From what I have been told by Todd, the set gain is the setting at which the wastegate begins to open. When set at "0", it defaults to .8 kpa (.8 bar). Todd mentioned you can tweak it a little for a slightly better boost response, but he usually just sets it at "0". Todd mentioned .85 as a possible setting, which would make sense, but so far I have just set it at "0". I would like to experiment a little and try to tweak the setting to see the difference, but I want to be certain before I change the setting so dramatically. The Greddy manual shows the "set gain" at .65 on a "sample low boost setting of 1 bar" and .85 on "sample high boost setting of 1.2 bar". After considerable thought regarding this setting and your advice to use 20% of max boost, I conclude as follows:
My every day "low'" setting is 1.1 bar (max boost). 20% of that is .22 bar, therefore, if I understand you correctly, I could possibly adjust the "set gain" to .88, which would hold the wastegates closed a little longer before they begin to open.
Is this correct?
Originally Posted by John D II
My every day "low'" setting is 1.1 bar (max boost). 20% of that is .22 bar, therefore, if I understand you correctly, I could possibly adjust the "set gain" to .88, which would hold the wastegates closed a little longer before they begin to open.
Is this correct?
if u run 1.1 on low boost leave the set gain at .8 to .9 bars.
__________________

2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL

2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL





