Notices
991 GT3 GT3RS and 911R
Sponsored by:

4.2 liter for new GT3RS?

 
Old 07-07-2019, 05:32 AM
  #31  
evilfij
Addict
Rennlist Member
 
evilfij's Avatar
 
Join Date: Apr 2008
Location: On the internet
Posts: 4,737
Received 33 Likes on 30 Posts
Default

What engine is it based on? 9A1 or 9A2 or ?
evilfij is online now  
Old 07-07-2019, 06:54 AM
  #32  
groundhog
User
 
Join Date: May 2018
Posts: 1,225
Received 19 Likes on 17 Posts
Default

Great info - RSR looks great, feels like Porsche may be running into a purple patch. I really thought they'd end up going the turbo route - nice to be proven wrong.
groundhog is offline  
Old 07-07-2019, 11:17 AM
  #33  
djcxxx
Addict
Rennlist Member
 
djcxxx's Avatar
 
Join Date: Jun 2005
Location: Florida
Posts: 1,551
Likes: 0
Received 1 Like on 1 Post
Default

Just saw the Goodwood video. Why would this engine sound like a chainsaw instead of a Porsche racing flat six?
djcxxx is offline  
The following users liked this post:
Surgio (07-11-2019)
Old 07-07-2019, 12:04 PM
  #34  
catdog2
Addict
Rennlist Member
 
catdog2's Avatar
 
Join Date: Nov 2006
Location: Boston, MA
Posts: 150
Received 6 Likes on 4 Posts
Default

Originally Posted by signes View Post
Nice, simple livery. Here's hoping it runs as good as it looks (and better than it sounds!)
Sounds great!! Just didn't rev it too high but delicious purposeful deep bass growl.... nice!
Forget what I said about Kers/Hybrid... they should be able to get this 4.2L with ITB up in the 550-560hp range with better torque curve for 992.1 until next gen maybe...
Hopefully next RS also gets the side exhaust and better rear diffuser! Time to start saving up $ heheheh...
catdog2 is offline  
Old 07-07-2019, 01:05 PM
  #35  
PTSGT3
User
 
Join Date: Feb 2018
Posts: 128
Received 1 Like on 1 Post
Default

Originally Posted by djcxxx View Post
Just saw the Goodwood video. Why would this engine sound like a chainsaw instead of a Porsche racing flat six?
Curious as well. Is it because of the side exhaust? Lack of crossover causing it to basically sound like a 3?
PTSGT3 is offline  
Old 07-07-2019, 01:16 PM
  #36  
GrantG
Addict
Rennlist Member

 
GrantG's Avatar
 
Join Date: Jun 2002
Location: Denver
Posts: 10,131
Received 35 Likes on 30 Posts
Default

Originally Posted by PTSGT3 View Post
Curious as well. Is it because of the side exhaust? Lack of crossover causing it to basically sound like a 3?
I think that must be part of it. But if I'm remembering right, the 996 GT3 had separate exhausts for each bank without a crossover and didn't sound like this...

Maybe the physical separation caused by the car between the two side exhausts has this effect (996 had rear outlets on the corners of the car - far left and right)?
GrantG is offline  
Old 07-07-2019, 01:28 PM
  #37  
iphilips
User
 
iphilips's Avatar
 
Join Date: Jan 2018
Location: San Francisco, CA
Posts: 320
Received 10 Likes on 9 Posts
Default

Originally Posted by subshooter View Post
I wonder if this tech is going to trickle down to the RS.....
[img]data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==[/img]
You mean Car Connect doesn't have that functionality today? 😂
iphilips is offline  
Old 07-07-2019, 02:16 PM
  #38  
Izzone
Addict
Rennlist Member
 
Izzone's Avatar
 
Join Date: Dec 2008
Location: Florida
Posts: 6,970
Received 2 Likes on 2 Posts
Default

New RSR looks fantastic

I do miss the days when the Porsche race cars resembled the factory cars you could buy, and shared many common parts.....those days are gone.

Understanding, they want o compete

On another note....ill bet next RS is mid engine....north of $300K. Hopefully with a hybrid boost

who cares about engine power....make the car stick better
Izzone is offline  
Old 07-07-2019, 02:27 PM
  #39  
MayorAdamWest
Addict
Rennlist Member
 
MayorAdamWest's Avatar
 
Join Date: Dec 2012
Location: SF Bay Area
Posts: 1,258
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Izzone View Post
New RSR looks fantastic

I do miss the days when the Porsche race cars resembled the factory cars you could buy, and shared many common parts.....those days are gone.

Understanding, they want o compete

On another note....ill bet next RS is mid engine....north of $300K. Hopefully with a hybrid boost

who cares about engine power....make the car stick better
Isn’t this still true for all the race cars except the RSR? For instance the Cup Car and GT3R
MayorAdamWest is offline  
Old 07-07-2019, 02:38 PM
  #40  
Guest89
Addict
Rennlist Member
 
Guest89's Avatar
 
Join Date: Mar 2010
Location: CHI / ATL
Posts: 2,419
Received 4 Likes on 2 Posts
Default

Originally Posted by djcxxx View Post
Just saw the Goodwood video. Why would this engine sound like a chainsaw instead of a Porsche racing flat six?
Originally Posted by PTSGT3 View Post
Curious as well. Is it because of the side exhaust? Lack of crossover causing it to basically sound like a 3?
Originally Posted by GrantG View Post
I think that must be part of it. But if I'm remembering right, the 996 GT3 had separate exhausts for each bank without a crossover and didn't sound like this...

Maybe the physical separation caused by the car between the two side exhausts has this effect (996 had rear outlets on the corners of the car - far left and right)?
The current RSR doesn’t cross over either; just two long pipes that terminate together.

The new RSR sounds worse because the exhaust exits on the side, so you only hear one in line 3 cylinder engine on either side. There may also be a muffler or resonator in there. Recall that the current car had a different, much quieter exhaust configuration for the first half of 2017, but they changed it because they had a problem with pickup catching on fire, as evidenced by the Silverstone WEC race.
Guest89 is offline  
Old 07-07-2019, 02:49 PM
  #41  
Guest89
Addict
Rennlist Member
 
Guest89's Avatar
 
Join Date: Mar 2010
Location: CHI / ATL
Posts: 2,419
Received 4 Likes on 2 Posts
Default



That’s a picture of the current RSR’s exhaust that I took at Laguna in 2017.
Guest89 is offline  
Old 07-07-2019, 04:41 PM
  #42  
BrntRubber
User
 
BrntRubber's Avatar
 
Join Date: Apr 2017
Posts: 1,085
Likes: 0
Received 3 Likes on 3 Posts
Default

Subscribed
BrntRubber is offline  
Old 07-07-2019, 08:51 PM
  #43  
dewilmoth
User
 
Join Date: Jun 2013
Location: Flower Mound, TX
Posts: 321
Likes: 0
Received 3 Likes on 3 Posts
Default

The side exit exhaust has always made the Viper tough to make sound good. As mentioned already, I suspect this is the same issue with sound on the new RSR.
dewilmoth is offline  
Old 07-07-2019, 08:59 PM
  #44  
GrantG
Addict
Rennlist Member

 
GrantG's Avatar
 
Join Date: Jun 2002
Location: Denver
Posts: 10,131
Received 35 Likes on 30 Posts
Default

Originally Posted by dewilmoth View Post
The side exit exhaust has always made the Viper tough to make sound good. As mentioned already, I suspect this is the same issue with sound on the new RSR.
I think the side exhausts on the racing version of the Ferrari 365GTB/4 Daytona sounded great (but I guess a straight six sounds pretty good...)
GrantG is offline  
Old 07-07-2019, 09:01 PM
  #45  
fjpdds
Addict
Rennlist Member
 
Join Date: Sep 2004
Location: KNOXVILLE TN
Posts: 1,887
Received 3 Likes on 2 Posts
Default

RSR.... she is wide!
fjpdds is offline  

Thread Tools
Search this Thread

Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: