DRC built TH400
If you have a 3000 stall and your crusing at 2500 I would think the converter would be slipping and building up heat... its made to fully lock at the 3krpm. I'm not converter expert, so I maybe way off. But I would prefer at least 3.23s with 3k plus stall
With 2.75's, the car will have a LONG first gear.... If you're gonna go with that for gearing, a converter that's a little on the looser side would be a better deal. it will stall up higher, but once cruising and the load on the car isn't that heavy, the converter should be more in a locked up like state, and it shoudln't go strait to the stall speed to keep you moving.
[QUOTE=JL ws-6]What you are saying is a little disturbing to me... [QUOTE]
I'm really sorry, I saw your quote and realized I had a typo, 3500 rpms with 25.6" tall tires is 75 MPH , not 65. 65 MPH is 3000 rpms with 3.5's
Sorry to confuse you.
I'm really sorry, I saw your quote and realized I had a typo, 3500 rpms with 25.6" tall tires is 75 MPH , not 65. 65 MPH is 3000 rpms with 3.5's
Sorry to confuse you.
Originally Posted by Xtnct00WS6
So I can drive on the highway at 65 mph while ONLY at 2500 rpms if I have 2.75's? The stall would have to be pretty small too wouldn't it? Something in the area of 3000?
Isn't the car a slug in first with 2.75's and a TH400?
Thanks!
Isn't the car a slug in first with 2.75's and a TH400?
Thanks!
The converter is so tight that I can cruise at 45 mph at 1500 rpms and still accellerate to pass traffic by bringing the rpms up to 2000. Yet I can still stall to 4000 rpms on the trans brake at 10psi and 3500 at 5psi. Flashes to 4500 at 15psi in 3rd gear from a 45 mph roll.
Originally Posted by JL ws-6
With 2.75's, the car will have a LONG first gear.... If you're gonna go with that for gearing, a converter that's a little on the looser side would be a better deal. it will stall up higher, but once cruising and the load on the car isn't that heavy, the converter should be more in a locked up like state, and it shoudln't go strait to the stall speed to keep you moving.
Cruising below the stall speed hasn't been an issue for me and really shouldn't be for most people since the converter is at light load.
Here are my gear splits incase anyone wonders, I shift at 6500 rpms.
1st-2nd is at 70 mph
2nd-3rd is at 120 mph
Thanks zombie, you were getting me a littl worried there. I'm on a 4.10 gear and I know teh rpm is gonna be up there, but I'm also on a mission to get into the 10's on motor on pump gas with a relativly heavy car. I was figuring on a 100 rpm slippage at highway speeds, putting me at about 3600 at 65... but I don't mind running at 55 on the highway, as it's very limited for me anyway.. it's not a daily driver car, and when I'm in it, I'm in no rush, unless I can see a scoreboard and a tree 
The 75 mph sounds more like it. And your 2.75's probably work great with a turbo car, building boost in first gear must be great... probably almost like running a glide (which is what I personally would put in a car that had a turbo setup, to help offset the turbo weight, and for the long *** first gear, to aid in getting traction sooner)
The 75 mph sounds more like it. And your 2.75's probably work great with a turbo car, building boost in first gear must be great... probably almost like running a glide (which is what I personally would put in a car that had a turbo setup, to help offset the turbo weight, and for the long *** first gear, to aid in getting traction sooner)
Originally Posted by JL ws-6
The 75 mph sounds more like it. And your 2.75's probably work great with a turbo car, building boost in first gear must be great... probably almost like running a glide (which is what I personally would put in a car that had a turbo setup, to help offset the turbo weight, and for the long *** first gear, to aid in getting traction sooner)
more weight just means you need more power
... Turns up the boost conroller 
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