by Sean82 » Mon May 12, 2014 4:51 pm
So I've ordered a 20T version from CMA with either a 0.5 or 0.8 bar waste gate spring (I've asked Dan to make that call but really I don't think the 1.0 bar is needed)
Not sure when it'll arrive, but I'll keep everyone updated.
As for the bell mouth option, I had a chat with a few buddies of mine and I think I might not go ahead with that as not all DPs will be created equal so plan on keeping the stock zorst (save for the tbSTi muffs I have) will make for more reliable comparison and data (if anyone has input on this, fire away, I'm open to suggestions...such as a loner???)
I did notice a couple differences between the size of the 19T and 20T versions:
20T
Comp wheel: 47/58mm 20T / 11 blade
Turbine: 46/58 mm 9 blade
19T
Comp wheel: 42/56 mm 19T
Turbine: "TD04HL / 11 blade high flow Iconel wheel" (whatever that means).
Both have twin scroll 8.5 cm rear housing.
I went for the 20T because I figure that if "TD04HL / 11 blade high flow Iconel Wheel" is code for "same as the 20T version", then the 20T would flow more air and thus be the better buy (unless I have this wrong, the bigger dimension of the 20T comp wheel should be able to flow more air, right?)
So from here, I'll finish my tuning on my stock turbo and get a dyno run done.
(NB: if I can get ahold of a suitable bell-mouthed DP for a 5EAT, I'll tune for that also but I suspect I'm not going to make much more power with the stock turbo...)
Also, Rusty ("04GTLIB") has kindly offered me his stock TD-04HLA to play with so I'll get a tune for that and see how it compares.
All tuning will likely be done with my Grimmspeed 3-port BCS.
Cheers
Sean..
Current: MY04 LGT 5EAT Wagon
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