More top end?

J_MENIS · 04-04-2018, 10:46 PM

After running the car against some real decent competition, I just cant help but feel the car has a poor top end (90-100+ or so) in comparison to other V8s ex: coyote , c63 etc.

What can be added to help the top end?

Mods on car : 2"TSP, RF CAI, PP IM/TB, E85

USAFS197 · 04-05-2018, 01:12 AM

It is inevitable, really. It is difficult to match the breathing and top end power capabilities of DOHC cars. You have to either out muscle/torque the car or hope you have better gearing.

In your case, better top end breathing can be had with a ported MSD, over your ported stock intake manifold.

6spdhyperblue · 04-05-2018, 06:42 AM

Ported heads

laynlo15 · 04-05-2018, 07:11 AM

Magnuson Heartbeat will get you plenty of top end. Not sure why your only at 90-100, you should be running 115 in the quarter or more.

KingLT1 · 04-05-2018, 07:25 AM

I think he might be referring to the A8 4-5th gear drop. That gear needs wound out higher then the rest..

TRich2SS · 04-05-2018, 08:57 AM

Quote:

Originally Posted by J_MENIS

After running the car against some real decent competition, I just cant help but feel the car has a poor top end (90-100+ or so) in comparison to other V8s ex: coyote , c63 etc.

What can be added to help the top end?

Mods on car : 2"TSP, RF CAI, PP IM/TB, E85

I have your same sentiments. I have PP ported stock IM and VMAX ported TB along with the other usual boltons. I wreck most modded S550 Coyotes from any speed unless they have the CobraJet intake package installed. Then I almost always lose at the top end by a car or so even though I pull on them by the same from a DIG or at the first 40-50mph from a 30 roll. As others stated, ported heads and a ported MSD will be your best bet in making up that mph difference between the two.

62nalide · 04-05-2018, 09:00 AM

Option A a set of ported heads
Option B a Heads/cam package

H/C 6th gens I have personally worked on have been monsters on the big end NA

KingLT1 · 04-05-2018, 10:04 AM

For sure...H/C/I cars are trapping 134-136 pretty easy.

Dads1le · 04-05-2018, 12:41 PM

I have a stage 1 pray heads cam with stock ported intake on e 550 rw. So it would be adding Prays ported heads and cam package to what you have Mines 6 speed. Is very big difference in big end Actually pulls to 6500 instead of falling over at 6000. I can email you a run in Mexico where I ran it hard through 4th and kept in through most of 5th before too much traffic.
On a side note I had a rental 18 mustang gt with a10. That motor is very much improved much better low end and pulls big on top. Has more of a hit above 5500 than mine but it’s because it doesn’t have near as much low end It’s a very fun motor stock. Chassis isnt even close to ours!
I’m too stupid to post pics or vids on forum but I’ll email you my pdr run if you want to pm your email

USAFS197 · 04-05-2018, 06:18 PM

The heads/cam comments fall right in line with what I was mentioning--out muscling the competition. There aren't too many naturally aspirated V8's out there running mid-high 500's to the wheels so, of course you would freight train them on the top end with a H/C/I setup.

boostednut · 04-05-2018, 07:14 PM

Quote:

Originally Posted by Dads1le

I have a stage 1 pray heads cam with stock ported intake on e 550 rw. So it would be adding Prays ported heads and cam package to what you have Mines 6 speed. Is very big difference in big end Actually pulls to 6500 instead of falling over at 6000. I can email you a run in Mexico where I ran it hard through 4th and kept in through most of 5th before too much traffic.
On a side note I had a rental 18 mustang gt with a10. That motor is very much improved much better low end and pulls big on top. Has more of a hit above 5500 than mine but it’s because it doesn’t have near as much low end It’s a very fun motor stock. Chassis isnt even close to ours!
I’m too stupid to post pics or vids on forum but I’ll email you my pdr run if you want to pm your email

How would you compare the chassis? I gather the chassis is pretty floppy and not very responsive. But I haven't driven an s550

Dads1le · 04-05-2018, 09:05 PM

The mustang feels like a grand touring car... softer and less responsive to steering inputs and not near the chassis balance when pushed hard. Is a great road trip cruising car but not a true sports car like the 1le is. Had a 2ss auto before the 1le and it’s way ahead of the mustang as well. For joe average the cruiser feel with the improved exhaust note of the gt will keep it outselling the Camaro and most of those mustang owners will have no idea what an awesome ride the Camaro is! Pretty awesome how far muscle cars have come in the last 3 years

J_MENIS · 04-06-2018, 12:46 AM

Thank you everyone for the replies, I’m speaking overall roll racing or half mile runs. It just seems that the SS can’t compete in the long run.

Perhaps I’ll port the heads with some boost

ZNix · 04-06-2018, 07:47 AM

It has a baby cam from the factory. Not much can be done about that. You can certainly extend the range by opening up some flow. But there are limits. Stock intake being one of them. MSD would be a better choice. There is no reason why a properly speced cam couldn't make power that carries up top as far as you would want it to.

If and when I cam this car, it will get something that can rev out to 7k+.

04-04-2018, 10:46 PM	#1
J_MENIS Drives: 2016 Camaro 2SS Join Date: Apr 2017 Location: San Francisco Posts: 128	More top end? After running the car against some real decent competition, I just cant help but feel the car has a poor top end (90-100+ or so) in comparison to other V8s ex: coyote , c63 etc. What can be added to help the top end? Mods on car : 2"TSP, RF CAI, PP IM/TB, E85

04-05-2018, 01:12 AM	#2
USAFS197 Drives: 2018 Audi TT RS Join Date: Jan 2014 Location: Navarre, Florida Posts: 1,915	It is inevitable, really. It is difficult to match the breathing and top end power capabilities of DOHC cars. You have to either out muscle/torque the car or hope you have better gearing. In your case, better top end breathing can be had with a ported MSD, over your ported stock intake manifold. __________________ 2018 Audi TT ▊RS 2.4X 0-60, 1.6X 60', 120+mph 1/8th, 4.XX 60-130, 150+mph traps on 255/35/18 R888R tires on the street (unprepped). 2019 Audi RS3 About as fast as the TT RS 2019 Camaro ZL1 1LE Sold 2018 Camaro SS 1LE Sold 2019 Corvette Z06 Sold 2021 Charger Hellcat Redeye Widebody Sold

04-05-2018, 07:11 AM	#4
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Magnuson Heartbeat will get you plenty of top end. Not sure why your only at 90-100, you should be running 115 in the quarter or more. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

04-05-2018, 07:25 AM	#5
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,789	I think he might be referring to the A8 4-5th gear drop. That gear needs wound out higher then the rest.. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

04-05-2018, 09:00 AM	#7
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Option A a set of ported heads Option B a Heads/cam package H/C 6th gens I have personally worked on have been monsters on the big end NA __________________ https://frankensteined.net/ Martin@Frankensteined.net

04-05-2018, 06:42 AM	#3
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,670	Ported heads

04-05-2018, 10:04 AM	#8
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,789	For sure...H/C/I cars are trapping 134-136 pretty easy. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

04-05-2018, 12:41 PM	#9
Dads1le Drives: 17 ss1le. Pray headcam e85 fbo msd Join Date: Mar 2017 Location: Northern Indiana Posts: 79	I have a stage 1 pray heads cam with stock ported intake on e 550 rw. So it would be adding Prays ported heads and cam package to what you have Mines 6 speed. Is very big difference in big end Actually pulls to 6500 instead of falling over at 6000. I can email you a run in Mexico where I ran it hard through 4th and kept in through most of 5th before too much traffic. On a side note I had a rental 18 mustang gt with a10. That motor is very much improved much better low end and pulls big on top. Has more of a hit above 5500 than mine but it’s because it doesn’t have near as much low end It’s a very fun motor stock. Chassis isnt even close to ours! I’m too stupid to post pics or vids on forum but I’ll email you my pdr run if you want to pm your email

04-05-2018, 06:18 PM	#10
USAFS197 Drives: 2018 Audi TT RS Join Date: Jan 2014 Location: Navarre, Florida Posts: 1,915	The heads/cam comments fall right in line with what I was mentioning--out muscling the competition. There aren't too many naturally aspirated V8's out there running mid-high 500's to the wheels so, of course you would freight train them on the top end with a H/C/I setup. __________________ 2018 Audi TT ▊RS 2.4X 0-60, 1.6X 60', 120+mph 1/8th, 4.XX 60-130, 150+mph traps on 255/35/18 R888R tires on the street (unprepped). 2019 Audi RS3 About as fast as the TT RS 2019 Camaro ZL1 1LE Sold 2018 Camaro SS 1LE Sold 2019 Corvette Z06 Sold 2021 Charger Hellcat Redeye Widebody Sold

04-05-2018, 09:05 PM	#12
Dads1le Drives: 17 ss1le. Pray headcam e85 fbo msd Join Date: Mar 2017 Location: Northern Indiana Posts: 79	The mustang feels like a grand touring car... softer and less responsive to steering inputs and not near the chassis balance when pushed hard. Is a great road trip cruising car but not a true sports car like the 1le is. Had a 2ss auto before the 1le and it’s way ahead of the mustang as well. For joe average the cruiser feel with the improved exhaust note of the gt will keep it outselling the Camaro and most of those mustang owners will have no idea what an awesome ride the Camaro is! Pretty awesome how far muscle cars have come in the last 3 years

04-06-2018, 12:46 AM	#13
J_MENIS Drives: 2016 Camaro 2SS Join Date: Apr 2017 Location: San Francisco Posts: 128	Thank you everyone for the replies, I’m speaking overall roll racing or half mile runs. It just seems that the SS can’t compete in the long run. Perhaps I’ll port the heads with some boost

04-06-2018, 07:47 AM	#14
ZNix Drives: 1987 Buick Grand National Join Date: Mar 2016 Location: Mass Posts: 149	It has a baby cam from the factory. Not much can be done about that. You can certainly extend the range by opening up some flow. But there are limits. Stock intake being one of them. MSD would be a better choice. There is no reason why a properly speced cam couldn't make power that carries up top as far as you would want it to. If and when I cam this car, it will get something that can rev out to 7k+.

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