Default *I Want To Go Faster* Help me on my journey...

AGVI

Well-known member
Joined
Mar 25, 2008
Messages
63
Location
Mississauga, Ontario
Alrighty, I have a 550HP 500TQ 406 and was wondering if updating my torque converter from the stock unit will make that much of a difference in terms of acceleration.

Should I look into a higher rear gear ratio also?

I currently have a TH350C lockup transmission and 3.07 gears.

The car is fast, but I think I can get much more out of it. :devil:
 
Yes, if you choose a higher stall converter it will allow the engine to rev up to where it'll make more TQ. Should make a world of difference with your engine.

However, don't choose too high, it'll be irritating in stop/go traffic/city driving.

Why not get a manual?
 
Rearend gear change makes a big difference but your gas mlieage goes to crap.
 
I'd go with a torque converter that stalls between 2600-3200, or something close to that.

3.55:1 gears

A built four speed auto or built 5 or 6 speed manual.

After that, I hope you have good sticky tires, and an O.S. handle for your passenger.

drive.gif
 
Yes, if you choose a higher stall converter it will allow the engine to rev up to where it'll make more TQ. Should make a world of difference with your engine.

However, don't choose too high, it'll be irritating in stop/go traffic/city driving.

Why not get a manual?

How high is too high in your opinion?

I was thinking about a 200R4 from bowtieoverdrives with a 3000 stall and a '79 or earlier rear diff built by Gary with 3.70 gears.
 
I went with an built 700r4 a few years ago,I should have went for a manual,rowing the gears with a healthy motor is a blast.You'll like the change from 307 to 370's.
 
Yes, if you choose a higher stall converter it will allow the engine to rev up to where it'll make more TQ. Should make a world of difference with your engine.

However, don't choose too high, it'll be irritating in stop/go traffic/city driving.

Why not get a manual?

How high is too high in your opinion?

I was thinking about a 200R4 from bowtieoverdrives with a 3000 stall and a '79 or earlier rear diff built by Gary with 3.70 gears.

I ran a 2600 stall on the street with no problems, I wouldn't figure 3000 would be that much different.

Sounds like your ride will FLY!:devil:
 
Summit sells the TKO for $1895 - or get the complete kit for $4500 from Keisler. With Summit you probably safe $1000 once you have all the parts, the pedals are hard to find.... you already have temperature problems.... a higher stall won't help cooling the engine LOL...get rid of the TH350... I assume you have a trans cooler right in front of the radiator ??
 
Yes, if you choose a higher stall converter it will allow the engine to rev up to where it'll make more TQ. Should make a world of difference with your engine.

However, don't choose too high, it'll be irritating in stop/go traffic/city driving.

Why not get a manual?

How high is too high in your opinion?

I was thinking about a 200R4 from bowtieoverdrives with a 3000 stall and a '79 or earlier rear diff built by Gary with 3.70 gears.

If you have a quality TC and lockup in 4th gear OD the sky is the limit on stall

rpm. I liked 3500 and 3800 stall with my 700R4. 3.73 or 3.90 gearing is about ideal with the OD
 
Summit sells the TKO for $1895 - or get the complete kit for $4500 from Keisler. With Summit you probably safe $1000 once you have all the parts, the pedals are hard to find.... you already have temperature problems.... a higher stall won't help cooling the engine LOL...get rid of the TH350... I assume you have a trans cooler right in front of the radiator ??

I thought about that also, but if the temp problems don't go away, it won't change my mind about the 200R4, it'll change my mind about the 406.
 
Summit sells the TKO for $1895 - or get the complete kit for $4500 from Keisler. With Summit you probably safe $1000 once you have all the parts, the pedals are hard to find.... you already have temperature problems.... a higher stall won't help cooling the engine LOL...get rid of the TH350... I assume you have a trans cooler right in front of the radiator ??

I thought about that also, but if the temp problems don't go away, it won't change my mind about the 200R4, it'll change my mind about the 406.

I musta missed the post...how/when/speeds/duration-time/outdoor temps does it overheat??

by how much??

do you have a/c or is the condenser in place???

fans, what type?? shrouds?? same question....

:bump::tomato:
 
Summit sells the TKO for $1895 - or get the complete kit for $4500 from Keisler. With Summit you probably safe $1000 once you have all the parts, the pedals are hard to find.... you already have temperature problems.... a higher stall won't help cooling the engine LOL...get rid of the TH350... I assume you have a trans cooler right in front of the radiator ??

I thought about that also, but if the temp problems don't go away, it won't change my mind about the 200R4, it'll change my mind about the 406.

I musta missed the post...how/when/speeds/duration-time/outdoor temps does it overheat??

by how much??

do you have a/c or is the condenser in place???

fans, what type?? shrouds?? same question....

:bump::tomato:

http://www.vettemod.com/forum/showthread.php?t=1274 :rolleyes:

:bounce:
 
hey les good to hear from you......why not an overdrive unit in combination with a steeper rear end . that should be a blast
 
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