04-09-2021, 04:02 PM | #71 |
Drives: 6th gen Join Date: Aug 2013
Location: US
Posts: 3,670
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That’s good info.
Before anyone extrapolates those results to NA bolton power levels, how important is scavenging on a boosted motor vs NA? Id also wonder about egt difference on a boosted motor
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‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122
‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) |
04-09-2021, 04:10 PM | #72 |
Drives: 2018 Chevrolet Camaro 2SS 1LE 6M Join Date: Jul 2019
Location: California
Posts: 283
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My original premise is based on N/A motors. Boosted motors are a different animal-the stock exhaust manifolds are definitely a restriction at twice the stock power level. The information is good though. Nice to see someone doing a useful comparison. That chart should definitely be available to the ZL1 and boosted SS guys.
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Bolt-ons.
Last edited by NA18CamaroSS; 04-09-2021 at 04:13 PM. Reason: text |
04-09-2021, 04:20 PM | #73 | |
Drives: '17 ZL1 Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,558
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Quote:
My thought was this data was still on-topic, but you're absolutely right about it being a different animal. I didn't intend for anyone to be misled.
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04-09-2021, 05:58 PM | #74 | |
Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,859
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Quote:
travislambert, thanks for posting that graph, it's interesting to see. I actually can't believe how good the stock manifolds are, especially when you consider how bad they used to be!
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04-09-2021, 06:08 PM | #75 | |
Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018
Location: Front Range, CO
Posts: 1,859
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Quote:
With turbos, it seems like the priority is to get the turbo as close to the heads as possible even if you sacrifice scavenging. I'm not up to date on the very latest in forced induction design though, but looking at the "hot V" turbocharged V8 motors everyone is making these days, and I think BMW is basically bolting the turbo to the head of their I6s as well, makes me think there is no scavenging going on, or very little.
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04-09-2021, 11:26 PM | #76 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,395
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idk how much turbo size plays a role but i did see a 1/8 no prep square body s10 tonight with the turbo behind (and above) the cab. it had no issues getting down.
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04-10-2021, 12:03 AM | #77 |
Drives: Chevy Camaro SS Join Date: Nov 2019
Location: Indiana
Posts: 225
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Lol, you went to Muncie’s big end banger didn’t you? 😆
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04-10-2021, 12:12 AM | #78 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,395
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hell yeah. i left when one of the other square body s10s decided to surf the guardrail. and i was slightly concerned about the rain and some bald gy sc3s.
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04-10-2021, 10:55 AM | #79 |
Drives: 2017 Camaro 1SS Join Date: Aug 2016
Location: NH
Posts: 1,692
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Is your hypothesis based on your 'loss' of 7 hp using long tubes instead of stock exhaust manifolds? I think that the explanation is, something is probably wrong with your car, not really with the headers. Plenty of people already have tested headers on the SS and found gains. Furthermore, like 6spdhyperblue mentioned, bolt-on cars using long tubes are faster on the dragstrip. Check out the fast list, bolt-on SS: the quickest cars all have long tubes, then behind a bunch of them is a cat-delete car, then right behind him is an all-stock-exhaust car (mine). Looks like for a bolt-on SS, cat deletes gain a little hp over the stock exhaust, and then long tubes gain even a little more.
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