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One of my favorite mods. Fabspeed HJS German 200 Cells with military grade Kevlar blankets, the sound really matches up perfectly with the stock NPP, plus you get the added hp/tq, weight savings and they flow at 92%. Soul also carries them.
Those look great!!
I don't have NPP so will probably start with cat-back to get a little throatier sound. Knew NPP wouldn't be enough, so didn't mess around with spending the money on it knowing I'd upgrade anyways.
Hey all have some recent numbers to share with the group on Monday’s Dynapack DYNO.
Mileage on my C8 is 10,600 and do run @ 93 octane by adding a few gallons of unleaded 100 to our local 91 octane.
Current performance HP/TQ mods added are: Halltech Hornet Cold Air Intake 95mm Gwatney Manifold
95/100mm Soler LT5/ZR1 Throttle Body
Soler Throttle Controller
Fabspeed HJS 200 Cell Cats
RWHP 453.53
RWTQ 437.44
Good news, will receive tomorrow the Lingenfelter Performance Design Carbon Fiber pTR LT2 Intake Manifold w/Red Flange and will do a comparison DYNO after install late next week. Should match up well with the Halltech Hornet Cold Air Intake and the Soler 95/100mm LT5/ZR1 Throttle Body.
those are some strong numbers.
You can add more 100 octane next time, 2 gallons of 100 octane only raised your octane from 91 to just under 92 octane. From a base 91 octane tank it would take 4.5 gallons of 100 octane to raise the octane to just slightly over 93 octane. Other option is you can throw 3 gallons of E85 into the tank (Stock ECM can handle E15 just fine) and it would do the same thing without costing $7 or more per gallons for 100 octane race fuel.
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
Originally Posted by TJay74
those are some strong numbers.
You can add more 100 octane next time, 2 gallons of 100 octane only raised your octane from 91 to just under 92 octane. From a base 91 octane tank it would take 4.5 gallons of 100 octane to raise the octane to just slightly over 93 octane. Other option is you can throw 3 gallons of E85 into the tank (Stock ECM can handle E15 just fine) and it would do the same thing without costing $7 or more per gallons for 100 octane race fuel.
Thx Jay, should of quantified on my process to 93 octane.
To get 93 octane (and appreciated the input) and to keep weight down I only fill up to 10.5 to 11 gallons at a time by adding 8 to 8.5 gallons of 91 and then add 2.5 gallons of unleaded 100. Would that be 93 octane?
Really close to 93 octane. 5th Gear pulls? Did they have a baseline, or even some one elses stock C8 to compare with? Just curious as to the change in HP-TQ from stock. . I think it probably runs stronger than the dynapack shows , it is not a happy dyno like dyno jet. Thanks for your post.
Really close to 93 octane. 5th Gear pulls? Did they have a baseline, or even some one elses stock C8 to compare with? Just curious as to the change in HP-TQ from stock. . I think it probably runs stronger than the dynapack shows , it is not a happy dyno like dyno jet. Thanks for your post.
Thx Jay, should of quantified on my process to 93 octane.
To get 93 octane (and appreciated the input) and to keep weight down I only fill up to 10.5 to 11 gallons at a time by adding 8 to 8.5 gallons of 91 and then add 2.5 gallons of unleaded 100. Would that be 93 octane?
Based on your ratio's, yes that would make a 93 octane mix. It is easy to calculate octane if you convert everything into "points".
8.5 gallons of 91 is 773.5 "points" (8.5 x 91).
2.5 gallons of 100 is 250 points.
250 + 773.5 = 1023.5 points
1023.5 / 11 gallons of fuel = 93.05 octane.
Hey all have some recent numbers to share with the group on Monday’s Dynapack DYNO.
Mileage on my C8 is 10,600 and do run @ 93 octane by adding a few gallons of unleaded 100 to our local 91 octane.
Current performance HP/TQ mods added are: Halltech Hornet Cold Air Intake 95mm Gwatney Manifold
95/100mm Soler LT5/ZR1 Throttle Body
Soler Throttle Controller
Fabspeed HJS 200 Cell Cats
RWHP 453.53
RWTQ 437.44
Good news, will receive tomorrow the Lingenfelter Performance Design Carbon Fiber pTR LT2 Intake Manifold w/Red Flange and will do a comparison DYNO after install late next week. Should match up well with the Halltech Hornet Cold Air Intake and the Soler 95/100mm LT5/ZR1 Throttle Body.
We are taking my C8 to LPE as soon as they respond to my requests for an install. Can't wait to see the numbers!
__________________ "World Class Performance for your Corvette"
Intake Design and Engineering since 1999
Halltech Systems, LLC
423-915-6056
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
Originally Posted by Halltech
We are taking my C8 to LPE as soon as they respond to my requests for an install. Can't wait to see the numbers!
Installation is scheduled for the Lingenfelter pTR Carbon Intake Manifold this Friday. Imagining the butt kick and sound will be solid when matched up to you and Dru's Hornet CIA and my existing Soler 95mm (100mm Eff.) Throttle Body. Nice thing with the pTR there is a ton of vertical clearance on the C8.
Have a comparison Dynapack Dyno scheduled with Xact Dyno on March 17 and will follow up to all with the results.
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
Originally Posted by itsonlyairandfuel
Current performance HP/TQ mods added are: Halltech Hornet Cold Air Intake 95mm Gwatney Manifold
95/100mm Soler LT5/ZR1 Throttle Body
Soler Throttle Controller
Fabspeed HJS 200 Cell Cats
RWHP 453.53
RWTQ 437.44 So with the above mods, you picked up about 20Hp. Have I got this right? Thanks.
Yes, correct picked up 24.5 rwhp and 27.4 rwtq over the average stock C8 of 429rwhp and 410 rwtq.
Replacing the 95mm Gwatney intake manifold with the Lingenfelter pTR carbon intake manifold on Friday and will be doing another comparison Dyno the following Friday.
Are you comparing my average dyno numbers? Because if so your car gained 13 rwhp on my dyno over an average stock one. You cannot compare what it made on a hub dyno to my dynojet as it's not the same.
