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Old 08-28-2017, 08:02 PM   #41
oldestof11
 
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DO THE DELETES!

That is all.
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Old 08-28-2017, 08:19 PM   #42
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That's against the rules...


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There really is nothing better than OEM. That goes for anything from turbos to boobs.
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Old 08-28-2017, 08:21 PM   #43
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Rules? What are these rules you speak of?
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Tom
"BBT" -- 2003 GMC CC/SB 4x4 12.14@111.15
"KLESHAY" -- 2000 C5 Corvette -- the toy

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Old 08-29-2017, 06:44 PM   #44
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That's against the rules...


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What would you like to know?

Throttle lag off idle is still kinda there but not dangerous anymore. I can spin my 245 width tires through 2nd gear from a stand still. 4th gear 30-70 is faster than the old 0-35 with a boosted launch. A bit of a deeper exhaust note.

I am thinking of taking it from the downpipe flange to where the SCR catalyst is with 2.5" stainless (or is stock 2.25"?? Gotta check), then increasing to 3 or 4" through the exhaust tunnel, Y before the rear axle, and dual 2.5" with chrome turn down tips.
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Old 08-29-2017, 08:27 PM   #45
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If you end up creating something for the SCR, Jon, let me know the specs.
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Tom
"BBT" -- 2003 GMC CC/SB 4x4 12.14@111.15
"KLESHAY" -- 2000 C5 Corvette -- the toy

2017 Buick Regal 2.0T -- the DD

 
Old 09-04-2017, 04:45 PM   #46
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So, I ran it today.

Absolutely no change. Best was 2.212 60', 10.410 @ 65.57 1/8th, 16.436 @ 82.44 mph.

Now, I can say from 2200-3700rpm has a huge increase in torque from a roll but from a standing start, no change.
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Old 09-05-2017, 10:55 AM   #47
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Are you running the race tune?

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Old 09-05-2017, 07:05 PM   #48
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Are you running the race tune?

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I would assume so. It says something like CRZYRC on the display.
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Old 09-05-2017, 07:44 PM   #49
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Originally Posted by oldestof11 View Post
So, I ran it today.

Absolutely no change. Best was 2.212 60', 10.410 @ 65.57 1/8th, 16.436 @ 82.44 mph.

Now, I can say from 2200-3700rpm has a huge increase in torque from a roll but from a standing start, no change.
Ya know, I'd be happy with that. Only things I really care about are:
a) better fuel mileage
b) loss of engine "weight" and the associated potential for failure of those parts
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Tom
"BBT" -- 2003 GMC CC/SB 4x4 12.14@111.15
"KLESHAY" -- 2000 C5 Corvette -- the toy

2017 Buick Regal 2.0T -- the DD

 
Old 09-05-2017, 10:22 PM   #50
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Ya know, I'd be happy with that. Only things I really care about are:
a) better fuel mileage
b) loss of engine "weight" and the associated potential for failure of those parts
A) With 245/35/20s, I saw quite a bit reduction in mileage. Before with the stock AL wheels and the 215 pizza cutter LRR at 80mph, I would get 43-45MPG. After, I would get 38-40mpg. Still not bad IMHO. now it seems to have returned to stock mileage but with bigger wheels
B) Mileage increase is a direct result of the weight reduction and as such, the CEL fell off too
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Last edited by oldestof11; 09-05-2017 at 10:24 PM.
 
Old 09-05-2017, 10:26 PM   #51
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I havent seen a big reduction in mileage from the 215 LRRs to my new 235 Kumhos. Maybe 1-2 mpg? Considering the weight difference between the two, its surprising.
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"BBT" -- 2003 GMC CC/SB 4x4 12.14@111.15
"KLESHAY" -- 2000 C5 Corvette -- the toy

2017 Buick Regal 2.0T -- the DD

 
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