S/G Launch RPM

BIGG18c · 04-09-2024, 11:46 AM

Thank you both for the tips! The car is supposed to weigh 2300 with me in it. Have not fully finished it to get the scales out yet. I think I will meet you both in the middle and start around 4500. I do truly appreciate you guys taking the time to give me advice!

Lenny5160_v2 · 04-09-2024, 12:56 PM

Quote:

Originally Posted by BIGG18c

Thank you both for the tips! The car is supposed to weigh 2300 with me in it. Have not fully finished it to get the scales out yet. I think I will meet you both in the middle and start around 4500. I do truly appreciate you guys taking the time to give me advice!

That seems reasonable. Especially with getting used to a new car that is much different than you are accustomed to, starting low is probably a good choice. You can always bring it up if you need to.

Good luck with it!

I see you're a D5 guy; maybe I'll see you out on the trail this year. I should be at all of them.

BIGG18c · 04-09-2024, 02:01 PM

Quote:

Originally Posted by Lenny5160_v2

That seems reasonable. Especially with getting used to a new car that is much different than you are accustomed to, starting low is probably a good choice. You can always bring it up if you need to.

Good luck with it!

I see you're a D5 guy; maybe I'll see you out on the trail this year. I should be at all of them.

Lenny- I plan to license at BIR the first or second weekend of May then be at Tri State for the double National Open if all goes well!

Lenny5160_v2 · 04-09-2024, 02:12 PM

Quote:

Originally Posted by BIGG18c

Lenny- I plan to license at BIR the first or second weekend of May then be at Tri State for the double National Open if all goes well!

I may be at that second BIR weekend, but I'm always slow to get my stuff ready and get started.

Grove Creek for Memorial weekend should be happening, then Tri-State for the first divisional event.

JP1738 · 04-10-2024, 02:29 PM

Quote:

Originally Posted by Lenny5160_v2

I may be at that second BIR weekend, but I'm always slow to get my stuff ready and get started.

Grove Creek for Memorial weekend should be happening, then Tri-State for the first divisional event.

It's crazy that D2 will have had 4 divisionals before y'all have your first. This spring has been an absolute marathon between 4 divs and 2 nats, plus outs if you wanted to go to La.

sst7250 · 04-13-2024, 12:50 PM

Same here in D7. Well kinda 3 nationals and 4 Diisionals for those that chase

Shake & Bake · 04-17-2024, 08:42 PM

I leave at 5,000. But then again, I have 1014 Ib-Ft. (Foot-pounds of torque).

So, the question you ask yourself:

Is it better to have more torque or horsepower?
Well, if you just want to go fast and hit 140 mph, then horsepower would be more effective for you. However, if you want a strong car that can pull boulders and take off quickly, a high torque might be more important to you. In short, torque makes your vehicle quick. Horsepower makes it fast.

Charlie Yannetti · 05-01-2024, 10:13 AM

I found in my 27 Roadster that it depends on HP and converter stall.. I was running a 565 with 1030 HP, and the stall is 6500 RPM.. I started at 5000 RPM, and moved to 5300 RPM to help with the tree.. I'm now running a 540 with 970 HP, and the stall is 6400 in OK weather.. still leaving at 5300, and having no problems with the tree.. I weigh in at around 2150 lbs.. 5000 would be a good starting point, and see how the car reacts.. with good power, these 27 Roadsters can be a weeeeeee bit violent, requiring adjustments..

Mark Yeager · 04-09-2024, 12:58 PM

Quote:

Originally Posted by BIGG18c

Thank you both for the tips! The car is supposed to weigh 2300 with me in it. Have not fully finished it to get the scales out yet. I think I will meet you both in the middle and start around 4500. I do truly appreciate you guys taking the time to give me advice!

I leave between 4500-4800. 2140 lbs. I carry .030-.040 in delay. Good luck!

04-09-2024, 11:46 AM	#1
BIGG18c Junior Member Join Date: Aug 2021 Location: North Dakota Posts: 43 Likes: 19 Liked 36 Times in 15 Posts	Re: S/G Launch RPM Thank you both for the tips! The car is supposed to weigh 2300 with me in it. Have not fully finished it to get the scales out yet. I think I will meet you both in the middle and start around 4500. I do truly appreciate you guys taking the time to give me advice! __________________ Grant Christianson C521 S/G,S/C, Pro ET.

04-13-2024, 12:50 PM	#6
sst7250 Member Join Date: Jan 2009 Location: Las Vegas, NV Posts: 184 Likes: 9 Liked 45 Times in 32 Posts	Re: S/G Launch RPM Same here in D7. Well kinda 3 nationals and 4 Diisionals for those that chase

04-17-2024, 08:42 PM	#7
Shake & Bake Member Join Date: Mar 2010 Posts: 311 Likes: 39 Liked 36 Times in 32 Posts	Re: S/G Launch RPM I leave at 5,000. But then again, I have 1014 Ib-Ft. (Foot-pounds of torque). So, the question you ask yourself: Is it better to have more torque or horsepower? Well, if you just want to go fast and hit 140 mph, then horsepower would be more effective for you. However, if you want a strong car that can pull boulders and take off quickly, a high torque might be more important to you. In short, torque makes your vehicle quick. Horsepower makes it fast. Last edited by Shake & Bake; 04-17-2024 at 08:49 PM.

05-01-2024, 10:13 AM	#8
Charlie Yannetti Senior Member Join Date: Jan 2005 Location: Alpine, NJ Posts: 566 Likes: 187 Liked 191 Times in 82 Posts	Re: S/G Launch RPM I found in my 27 Roadster that it depends on HP and converter stall.. I was running a 565 with 1030 HP, and the stall is 6500 RPM.. I started at 5000 RPM, and moved to 5300 RPM to help with the tree.. I'm now running a 540 with 970 HP, and the stall is 6400 in OK weather.. still leaving at 5300, and having no problems with the tree.. I weigh in at around 2150 lbs.. 5000 would be a good starting point, and see how the car reacts.. with good power, these 27 Roadsters can be a weeeeeee bit violent, requiring adjustments..