|
Forced Induction Turbo, Supercharger, Methanol, Nitrous |
|
Thread Tools | Search this Thread |
07-09-2021, 12:47 AM | #1 |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Same WHP but more Torque? How?
Apologies I’ve had a few rookie questions this week. I have an Edelbrock SC installed for about a month now and things are going well. I’m just curious how my tuner got 246whp and 220ft/lbs when the advertisement for Edelbrock is 242whp and 186ft/lbs (near stock tq). How can you get that much more tq while keeping the whp at the advertised amount from Edelbrock?
My concern is my transmission in the future, so I’m not sure if I should see about getting torque lowered? I know the stock transmission is only rated for 250nm (184ft/lbs). Dyno:
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
The Following User Says Thank You to BrahmaBull1990 For This Useful Post: | Ultramaroon (07-09-2021) |
07-09-2021, 01:07 AM | #2 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,866
Thanks: 52,126
Thanked 36,517 Times in 18,919 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
Tune it for lower peak torque at higher engine speed. Modest boost only up top. It's how I would do it.
__________________
|
The Following 2 Users Say Thank You to Ultramaroon For This Useful Post: | BrahmaBull1990 (07-09-2021), Dzmitry (07-20-2021) |
07-09-2021, 01:18 AM | #3 |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
I shift at 4-5k. So they would have to lower it a lot around there. Is 220ft/lbs something to be concerned about? I know it’s a crap shoot with FI.
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
The Following User Says Thank You to BrahmaBull1990 For This Useful Post: | Ultramaroon (07-09-2021) |
07-09-2021, 01:25 AM | #4 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,866
Thanks: 52,126
Thanked 36,517 Times in 18,919 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
I honestly don't know. The weak link is fourth gear so, even NA, I try not to lean into it too much there. I would keep the stock clutch and let that be the safety. If it slips, too much torque for the transmission.
__________________
|
The Following 2 Users Say Thank You to Ultramaroon For This Useful Post: | BrahmaBull1990 (07-09-2021), jcw99 (07-29-2021) |
07-09-2021, 01:27 AM | #5 |
Senior Member
Join Date: Mar 2017
Drives: JRSC BRZ SOLD
Location: Ohio
Posts: 934
Thanks: 676
Thanked 739 Times in 396 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
All dyno's read different. Don't read too much into it. As long as you aren't slamming 4th gear all day long you'll be fine.
|
The Following 3 Users Say Thank You to PulsarBeeerz For This Useful Post: |
07-09-2021, 01:32 AM | #6 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,866
Thanks: 52,126
Thanked 36,517 Times in 18,919 Posts
Mentioned: 1106 Post(s)
Tagged: 9 Thread(s)
|
Wait... what about that point at 7000 RPM?... Where everything fades? Weightless...
5K is like sex with a condom.
__________________
|
The Following 5 Users Say Thank You to Ultramaroon For This Useful Post: | BrahmaBull1990 (07-09-2021), Dzmitry (07-20-2021), Lantanafrs2 (07-09-2021), p1l0t (07-22-2021), sato (07-19-2021) |
07-09-2021, 01:42 AM | #7 | |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
7k when I’m depressed and nostalgic on the backroads
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
|
The Following 2 Users Say Thank You to BrahmaBull1990 For This Useful Post: | p1l0t (07-22-2021), Ultramaroon (07-09-2021) |
07-09-2021, 02:13 AM | #8 | |
Senior Member
Join Date: Mar 2018
Drives: BRZ
Location: UK
Posts: 154
Thanks: 74
Thanked 80 Times in 59 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Quote:
1. Flash an edelbrock carb tune and try to dyno the car on the same dyno and see if it makes a difference. 2. Assuming the car has a low octane tune in one of the modes, run the car in that 3. Get one of the popular ones like Zach , CSG or William at Delicious to tune for you. 4. Ask the question to Edelbrock itself by sending the dyno chart and see what they say about the tune and their R&D about transmission PS: Edelbrock quote power and torque at the wheels . Is yours the same or at the crank as there is about 15% transmission losses from crank to wheel? Sent from my SM-G781B using Tapatalk Last edited by Brz-123; 07-09-2021 at 04:27 AM. |
|
The Following User Says Thank You to Brz-123 For This Useful Post: | BrahmaBull1990 (07-09-2021) |
07-09-2021, 03:53 AM | #9 | |
Member
Join Date: Sep 2019
Drives: Scion FRS 10 series
Location: Santa Rosa CA
Posts: 39
Thanks: 6
Thanked 25 Times in 17 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
07-09-2021, 08:01 AM | #10 | |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
|
07-09-2021, 09:38 AM | #11 |
friendly
Join Date: Oct 2018
Drives: 17' 86
Location: Dutchess County, NY
Posts: 718
Thanks: 1,442
Thanked 466 Times in 284 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Horsepower = Torque x RPM / 5,252
So 246hp at approx 7k rpm is 185lb ft. Also, dynapacks read high You can have them play with fuelling and timing to reduce torque down low. I would bring it up with your tuner and see if they can flatten the already pretty flat torque curve if you're super concerned.
__________________
Seek comfort in discomfort.
|
The Following 2 Users Say Thank You to alphasaur For This Useful Post: | BrahmaBull1990 (07-09-2021), ls1ac (07-09-2021) |
07-09-2021, 09:55 AM | #12 | |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
@Irace86.2.0 You were putting down decent power on the smaller pulley with your Harrop (and it's up for sale - anyone?). Did you have and transmission problems with your TQ? I know you hooned a bit around town.
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
Last edited by BrahmaBull1990; 07-09-2021 at 10:22 AM. |
|
The Following User Says Thank You to BrahmaBull1990 For This Useful Post: | Irace86.2.0 (07-09-2021) |
07-09-2021, 11:39 AM | #13 |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,884
Thanks: 5,668
Thanked 5,805 Times in 3,299 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
I don’t know what other modifications you have besides the supercharger. Do you have a header or anything?
This is Edelbrock’s CARB tune, right? They provide a single tune, right? Here is a custom tune making around 210tq. You aren’t seeing a higher horsepower because there was drop off at the top, and he didn’t rev it out to 7500rpms; he stopped at 7000rpms. Was he seeing knock? Was he at the end of fueling? Was it a hot day, or had the engine reached heat soak? Was he just being conservative? I don’t know. Ask him why it tapers off so much at the top. Seems like he got more torque down low. I was on E85 at 14.5psi, which is around 275wtq. I didn’t hard launch too often, nor did I downshift two gears too often, but there was plenty of hard driving. The transmission can take more than stock torque. You can break the transmission on stock torque too. With a k24 turbo in the works, I’ll be testing the stock transmissions limits. We will see what happens.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
The Following 2 Users Say Thank You to Irace86.2.0 For This Useful Post: | alphasaur (07-09-2021), BrahmaBull1990 (07-09-2021) |
07-09-2021, 11:46 AM | #14 | ||
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
My TQ is mostly likely much lower when you factor in wheel weight and resistance, as I was dyno'd on a hub Dynapack. That makes me feel better. Quote:
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
||
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
torque | John27 | Scion FR-S / Toyota 86 GT86 General Forum | 28 | 07-07-2017 01:50 PM |
Calculate torque when using a crows foot on torque wrench | BirdTRD | DIY (Do-It-Yourself) Guides | 0 | 10-11-2015 04:02 PM |
Requested torque and Calculated torque | nickw14 | Software Tuning | 3 | 06-13-2015 04:09 AM |
Torque Pro App | poorsche | Engine, Exhaust, Transmission | 4 | 12-12-2014 05:01 AM |
Torque Dip | sierra | Scion FR-S / Toyota 86 GT86 General Forum | 68 | 07-22-2013 03:18 PM |