Subject	A .49 A/R in a 29 frame is not the same as a .49 A/R in a 25
Posted by	SirpriZ on August 03, 2018 at 7:30 PM
	This message has been viewed 365 times.
In Reply To	I'm thinking the 0.49 a/r housing is going to be a bit too posted by MixManMash on August 03, 2018 at 06:59 AM
Message	or 28 series frame. Since we have small displacement engines, I'm thinking a .49 would be a good match. The G series is a 550 HP turbo, (since Garrett tends to be conservative on their HP ratings), it seems like it would make, give or take, 1,.000 rwhp. The only reason someone would be interested in that kind of power and lag would be someone with a 4,500+ stall and automatic for drag racing or someone that wants the coolest dyno sheet. The .49 in a 29 frame would allow for a more responsive (yes, lower peak HP) car, but who cares? Look at the turbine pressure ratio numbers for the 29 frame size and .49 A/R vs 28 frame size and .64 A/R. One turbos frame size A/R is not another frame size A/R in terms of performance and pressure ratio.
Follow Ups	upgrading from 530bb to gtx2860r, is it worth it? - Boostjuice 11:11:42 07/31/18 You'll make 800whp on e85 with gtxs...with the same spool - Stanky (BC) 12:13:57 07/31/18 I have both a 530bb z and a gt3076 z. Granted the 3076 is no - bbug 13:00:12 07/31/18 Truth. I only run pump fuel on my red TT at the track - MixManMash 13:09:32 07/31/18 To make the most of those bigger turbos, you will want - MixManMash 13:03:45 07/31/18 I can also honestly say, 400-500hp makes for the most - MixManMash 13:07:38 07/31/18 Get better tires (n/m) - ForceFedTT 14:05:02 07/31/18 Short of drag radials, nothing is going to hook at 815hp. - MixManMash 18:15:37 07/31/18 Get a D.O.T. drag radial and stop lighting them up (n/m) - ForceFedTT 18:26:44 07/31/18 ET Streets are the only tires I've had that can hold that - Zu4ea 11:08:55 08/01/18 No doubt......ET Streets and most probs are solved. (n/m) - The Hawk 16:47:33 08/01/18 Yep. Until the next weak point breaks. Lol. (n/m) - MixManMash 21:05:50 08/01/18 i need to get my car on the dyno, but it should roughly be - Boostjuice 14:33:13 07/31/18 fwiw, Someone just posted GTX2863's in the classifieds - ZXoltan 17:57:38 07/31/18 As someone that had 530BBs in my Z, I personally felt they - Ghoztt 20:46:20 07/31/18 tru dat (n/m) - ForceFedTT 21:13:18 07/31/18 preach brother! - vorpalZ 22:06:59 07/31/18 True. (n/m) - MixManMash 08:27:05 08/01/18 My vote is for the new Garrett G series - Spectrum (WI) 21:38:01 08/02/18 I'm thinking the 0.49 a/r housing is going to be a bit too - MixManMash 06:59:02 08/03/18 A .49 A/R in a 29 frame is not the same as a .49 A/R in a 25 - SirpriZ 19:30:53 08/03/18 Agreed. I compared the turbine maps and the G25-550 - MixManMash 07:14:48 08/04/18 Agreed. I keep looking hoping for availability.... - ConVerTT 23:08:01 08/04/18 i have a brand new set of JWT gtx 2967s - Dane (Houston) 22:31:39 08/02/18
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