What gear ratios are you running?

[64nailhead]

His first post has a bunch of info

Missed that. Along with his comment of expecting 1000 hp, 3.73 at the lowestif he can lock up the converter at 1000h. Otherwise a safe bet is a 3.50-3.55.


Built6spdMCSS - thank you - I mossed the 2 posts indicating a hp goal and boost.

 

[johnnunez29]

Since you have an OD with the 80e plan to drag it, 3.73 at the lowest. Many 1000hp+ 8 second cars run 3.73's.

Best suggestion I have is go to Wallace racing calculator online, type in 3.73, 5% converter slip, 28" tire and 1-1 ratio for 3rd gear and it's like 148mph at 6750rpm or something. It's going to drive great on 3.73, 4.11, 4.30 or anything in there is a good choice also.

You might loose half a sec at the track with a 3.73 that's more 1000hp 8 second territory over a 4.56 that's more 375hp 13 second territory but if you know you're going to swap boost down the road, determine what your goal quarter mile time is, determine the trap speed, and do the math to find the gear.

Thank you! My reading was pointing me in that direction. But nothing solid. I will look into the 3.73 gear prices. I am wondering if maybe I should bring down my hp goals for street driveability. Im not saying it’s a daily driver but I do plan on taking her out on the weekends.

 

[johnnunez29]

Missed that. Along with his comment of expecting 1000 hp, 3.73 at the lowestif he can lock up the converter at 1000h. Otherwise a safe bet is a 3.50-3.55.


Built6spdMCSS - thank you - I mossed the 2 posts indicating a hp goal and boost.

Thank you for chiming in. 💪🏼 All advice is appreciated. Like I mentioned above, I may need to bring down hp goals. I am planning on taking her out on the weekends and don’t want to have a bad time driving her.

 

[olds307 and 403]

I wish my cheap 2200 to 2500 converter had 5% slippage unlocked, more like double that. I am also considering a 4L80E and a good converter is $$$. The gear suggestion is spot on, it will be scary fast without much gear multiplication.

 

[GroceryGetter83]

I run 3.25 gears, TH400, Ford 9", 26" Pro Bracket Radials