28-12-2012, 04:07 PM
Again, from my limited testing of the GT2056, it fecking flew.
On the 9mm pump with only a 4mm or so gov shim, it was perfect, ran out of puff just as the fuelling was cutting out, and it came on boost SO quickly compared to the T2, couldn't believe the instant torque from it. Didn't try a proper 30-70 but the one that killed the turbo was around 6 seconds, which considering a T2 was about 10 seconds on the same fuelling that's a massive improvement.
And i'm confident in the application now having investigated. I'd been wondering if maybe oil pressure was an issue, or turbine being too small compared to the compressor. It was just me assuming it could handle the same kind of boost as T2's and TD04's and being wrong, i'll hold my hands up and say I threw 35psi at it dewastegated so it possibly even surged higher when it snapped, eyes weren't on the gauge. Setting it up properly it WiLL be epic.
VNT's will always boost harder, by design they're much more efficient. Setting them up isn't impossible but for a part time "tuner" it's a lot of hassle. Ruan put the effort in and we've all seen the results in his videos, but it's like anything else, if you have the time and patience to research it then go for it, a lot of people just want m0ar boost though and slap on a TD04 with a set of ready made plates as they know it works and is relatively low risk.
On the other hand, I set out on a bit of an adventure, cocked it up twice and now my wallet is hurting. But i've learned from my mistakes and won't make them again.
Same with VNT's, if you wade in at the deep end then there's every chance you'll pop one very quickly. Shit happens though and you have to accept it and move on.
On the 9mm pump with only a 4mm or so gov shim, it was perfect, ran out of puff just as the fuelling was cutting out, and it came on boost SO quickly compared to the T2, couldn't believe the instant torque from it. Didn't try a proper 30-70 but the one that killed the turbo was around 6 seconds, which considering a T2 was about 10 seconds on the same fuelling that's a massive improvement.
And i'm confident in the application now having investigated. I'd been wondering if maybe oil pressure was an issue, or turbine being too small compared to the compressor. It was just me assuming it could handle the same kind of boost as T2's and TD04's and being wrong, i'll hold my hands up and say I threw 35psi at it dewastegated so it possibly even surged higher when it snapped, eyes weren't on the gauge. Setting it up properly it WiLL be epic.
VNT's will always boost harder, by design they're much more efficient. Setting them up isn't impossible but for a part time "tuner" it's a lot of hassle. Ruan put the effort in and we've all seen the results in his videos, but it's like anything else, if you have the time and patience to research it then go for it, a lot of people just want m0ar boost though and slap on a TD04 with a set of ready made plates as they know it works and is relatively low risk.
On the other hand, I set out on a bit of an adventure, cocked it up twice and now my wallet is hurting. But i've learned from my mistakes and won't make them again.
Same with VNT's, if you wade in at the deep end then there's every chance you'll pop one very quickly. Shit happens though and you have to accept it and move on.
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