NB2 Turbo Redemption, or Just More Absurdity... Part Deux???
#42
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Went out for some logs and realized that I have had my wideband calibration wrong the whole time I have worked on this project... I reset for the correct AEM cal and did some fueling work, it was actually pretty close before I futzed with it.
I did get one 5th gear pull though. I think the power spike in the previous graph was an artifact from hitting a bump doing a 3rd gear pull. The 5th gear looks a lot more... plausible.
I did get one 5th gear pull though. I think the power spike in the previous graph was an artifact from hitting a bump doing a 3rd gear pull. The 5th gear looks a lot more... plausible.
#43
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I felt like the car was a little down on power, so I hit the drag strip. Naturally I broke a couple small things, but the engine has been flawless. What think? Down on power for 19 psi on a .86 a/r gt2860?
#44
Power? No you're not down on power. 113 trap for 280 is actually good IMO
You're definitely down on spool and lowend, and 19psi is kinda high boost for only 280, but you already knew that. What's the spark map look like? or post a pic of log showing timing curve. Maybe you're really low on timing
You're definitely down on spool and lowend, and 19psi is kinda high boost for only 280, but you already knew that. What's the spark map look like? or post a pic of log showing timing curve. Maybe you're really low on timing
#45
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Power? No you're not down on power. 113 trap for 280 is actually good IMO
You're definitely down on spool and lowend, and 19psi is kinda high boost for only 280, but you already knew that. What's the spark map look like? or post a pic of log showing timing curve. Maybe you're really low on timing
You're definitely down on spool and lowend, and 19psi is kinda high boost for only 280, but you already knew that. What's the spark map look like? or post a pic of log showing timing curve. Maybe you're really low on timing
#47
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I'm gonna do just that, but only when I can get on the dyno. Apparently my dyno guy has a bad graphics card or something on the dyno computer. I'm still considering a different turbo, like a gtx2860. I want my spool back...
#54
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Thanks!!!
#56
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I'd love to, but spending that much isn't sonething I can do right now. Selling this turbo and buying a .64 gtx2860 or so with the current hot side is doable though. I'm just a bit unsure as to why this turbo seems maxed at 300 when it should make way more.
#58
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Wiseco 8.4:1 slugs and eagle rods
Stock vvt head
Square top with stock tb
Fm manifold and cast upper dp with 3" lower and exhaust
Gt2860r (not the potato)
Dw200 pump and gt500 injectors
Precision 350 hp intercooler with fm piping
EBC and 93 pump
rev ms3 basic
EBay aluminum radiator
6 speed / 3.9
Custom valved bilsteins 800/500 and rb/msm sways
Some more unrelated things
#59
this is the turbo, right?
https://www.turbobygarrett.com/turbo...R_707160_5.pdf
looks like a giant turd. you need 3 bar pressures to even go past 300
so yeah I guess a gtx should be a good bump up
https://www.turbobygarrett.com/turbo...R_707160_5.pdf
looks like a giant turd. you need 3 bar pressures to even go past 300
so yeah I guess a gtx should be a good bump up
#60
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No that's the rb specific one. It's this one, dame compressor map though i think: http://www.turbobygarrett.com/turbob...argers/gt2860r