I give up. ( Track vid and slips inside )
10-31-2016, 05:56 PM
#41
Lol, you guys are wild. Hey, do you drive the 2000 with the Th400 on the freeway any? If so, are you able to keep reasonable pace with traffic?
10-31-2016, 06:17 PM
#43
If someone doesn't want to try to understand my approach, that's ok. Doesn't mean it isn't valid. You can make your own slip controller and get similar results to mine, but most racers don't even know they exist.
10-31-2016, 06:32 PM
#44
10-31-2016, 06:44 PM
#45
I have 3.90 gears so I prefer to stay around 50-55 mph but I have driven it to the track about 30 miles away. When I install the 3.40 pro gear I will have no issues driving 70 mph with 28" tall tires. Obviously I won't be doing 500 mile road trips like I used to with the 6 speed car. I'm running e85 so I'm limited on the distance I can go.
10-31-2016, 06:54 PM
#46
It absolutely will. How do I know? Because I was in the same boat as the OP several years ago. I had a good clutch setup and finally added a 9 inch and real tire, clutch dumps at 4-4500 rpms and the best it would sixty foot was a 1.8x. I added a 2 step and launching at the SAME 4-4500 rpms, leaving in boost, and the car would cut 1.5x sixty foots. The 2 step does a BETTER job at keeping the rpm's up along with creating more power on launch compared to slipping the clutch. On a turbo manual trans car, I'd take a 2 step and launching at 4k over no 2 step and launching at 6500 all day long.
11-01-2016, 08:50 AM
#47
Game Ova I know you and I have talked before and our car are similar but you should be able to go 10s leaving not in boost. I got mine to cut a 1.8 and go 10.8 at 138 mph. What I did was launch the car around 5000 or so and I let the clutch out about 3/4 of the way for just a tenth of a second until it started to move and then just drop it and nail the accelerator. It got the car rolling a little so all of the force didn't hit at once. Here is my slip to compare.
11-01-2016, 10:11 AM
#48
Game Ova I know you and I have talked before and our car are similar but you should be able to go 10s leaving not in boost. I got mine to cut a 1.8 and go 10.8 at 138 mph. What I did was launch the car around 5000 or so and I let the clutch out about 3/4 of the way for just a tenth of a second until it started to move and then just drop it and nail the accelerator. It got the car rolling a little so all of the force didn't hit at once. Here is my slip to compare.
Last edited by Game ova; 11-01-2016 at 11:58 AM.
11-01-2016, 11:14 AM
#50
You kinda have a point there lol. But if things go my way, this whole 6 speed...10 bolt issue won't be a problem come next year. Looking to go Th400 and something much more sturdy for a rear end over the off season.
11-01-2016, 11:18 AM
#51
Im just messing with you.....although I am sad to see you swap to a TH400. I refused to swap an auto into mine even though I could have gone 9's with it. Yes some people think its dumb to go slower and break stuff, but having a 10 second 6 speed car that is a real street car puts you in limited company which I always thought was cool.
11-01-2016, 11:51 AM
#52
Im just messing with you.....although I am sad to see you swap to a TH400. I refused to swap an auto into mine even though I could have gone 9's with it. Yes some people think its dumb to go slower and break stuff, but having a 10 second 6 speed car that is a real street car puts you in limited company which I always thought was cool.
11-01-2016, 12:00 PM
#53
Right now, it runs like a heads/cam car lol. But you are probably right. If I came out with some rpm, the car would have likely ran better. I'm just so gun shy after I blew it up last track day....I was scared to get too crazy with the launch. A real rear end is coming. Btw, I meant MY car runs like a heads/cam car.....not yours.
11-01-2016, 12:21 PM
#55
Oops, accidentally quoted myself. But yea I was asking you. See, that's a key difference between our cars. Yours is better equipped for being more durable. About a month ago, I decided I would take advantage of the good air...and run a real time. Tried to rip through the gears, and the festivities ended abruptly. But as stated, next year will be very different.
11-01-2016, 12:27 PM
#56
It absolutely will. How do I know? Because I was in the same boat as the OP several years ago. I had a good clutch setup and finally added a 9 inch and real tire, clutch dumps at 4-4500 rpms and the best it would sixty foot was a 1.8x. I added a 2 step and launching at the SAME 4-4500 rpms, leaving in boost, and the car would cut 1.5x sixty foots. The 2 step does a BETTER job at keeping the rpm's up along with creating more power on launch compared to slipping the clutch. On a turbo manual trans car, I'd take a 2 step and launching at 4k over no 2 step and launching at 6500 all day long.
Your no boost 6500 rpm launch likely drops to around 3500 by .7 seconds in, which lowers the average rpm to around 5000 or about 58.33 revolutions over .7 sec.
A 5500 rpm launch without any rpm drop at all will have a 5500 rpm average over those same .7 seconds, or about 64.16 revolutions...about a 10% gain in power production over the first .7 sec.
After that initial .7 sec, the 6500 rpm launch begins it's climb from 3500 because of the bog. Over the next .3 sec it will average around 3650 rpm, or 18.25 revolutions, for a total of around 76.58 revolutions of power production over the 1st second of the run. The 5500 rpm launch without any bog will average 5500 rpm over the same time period, or about 91.66 revolutions of power production. With roughly 20% more revolutions of power production during the first second of the run, the 5500 rpm no boost launch with controlled clutch slip is going to spool the turbo much quicker than the typical 6500 rpm no boost launch.
If you simply took clutch out of the car until you could launch no-boost without losing rpm, there's no way that clutch would be able to hold when the car starts making power. Temporarily holding back some clutch clamp pressure makes it possible to slip more initially to raise average rpm, but also have enough clamp in reserve to hold the power down the track.
11-01-2016, 12:47 PM
#57
Oops, accidentally quoted myself. But yea I was asking you. See, that's a key difference between our cars. Yours is better equipped for being more durable. About a month ago, I decided I would take advantage of the good air...and run a real time. Tried to rip through the gears, and the festivities ended abruptly. But as stated, next year will be very different.
11-01-2016, 01:09 PM
#58
Before sticking a boring TH400 in it I think you should put a rear worthy of some abuse and send it on proper tire. It will make all the difference if you drive it correctly!
Driving it correctly is key as it seems some in this thread cant get a car off the line to save their lives. My first trip to the track after my trans swap (from a TH400 to TR-6060) I ran 1.5-1.6 60' in a turbo car that weighs in over 4k lbs and I don't have a two step. I didn't need to launch at 6500RPM either but I did have to lower my tire pressure and it went 10's on wastegate with a chinese turbo with a kids seat in the back. I have a 3.45 rear with a 295 Hoosier DR.
While I am looking to hookup a 2 step and improve my 60' I wouldn't say its critical to making a manual car 60' decently. I would put a proper tire on it and learn how to drive it first, then improve by adding boost off the line.
Driving it correctly is key as it seems some in this thread cant get a car off the line to save their lives. My first trip to the track after my trans swap (from a TH400 to TR-6060) I ran 1.5-1.6 60' in a turbo car that weighs in over 4k lbs and I don't have a two step. I didn't need to launch at 6500RPM either but I did have to lower my tire pressure and it went 10's on wastegate with a chinese turbo with a kids seat in the back. I have a 3.45 rear with a 295 Hoosier DR.
While I am looking to hookup a 2 step and improve my 60' I wouldn't say its critical to making a manual car 60' decently. I would put a proper tire on it and learn how to drive it first, then improve by adding boost off the line.
11-01-2016, 01:19 PM
#59
What were you launching at and how were you doing the clutch? I only went that one time that I got a 10.80 out of mine but it didn't feel like it would 60 ft much better than what I was getting, maybe could have dropped into the 1.70s with a tad more rpm but that was around a 5k slip/dump.
11-01-2016, 01:22 PM
#60
Oops, accidentally quoted myself. But yea I was asking you. See, that's a key difference between our cars. Yours is better equipped for being more durable. About a month ago, I decided I would take advantage of the good air...and run a real time. Tried to rip through the gears, and the festivities ended abruptly. But as stated, next year will be very different.