4.10 guys get in here. I need some verification.

[YZF]

I was chatting with a buddy of mine and we got to talking about my rpm's at trap speeds compared to his and we came to the conclusion that there's a good chance I stabbed a 4.30 gear in my car.

Then we did a little playing around on a gear calculator online and the math added up correctly there too.

So then I thought; well maybe my tach is off and I really have no idea what the correct rpm's are on the dash. But when I had it dyno'd about a month ago I shut it down at 6k on the dash and I went back to the dyno sheet and on the sheet she shut down just an ass hair above 6k, probably 6050rpm.

I searched for awhile on the demon site and couldn't find any other info about this.

My car trapped damn near 110, and I crossed the 1320' at 6k on a 26" MT ET street.

If any of you with 4.10/4.30's trap somewhere between 105-115 please fill me in on your rpm's.

[Jeff400w]

My car runs 107@around 5800-5900 with a 28in ET Street. 275/60/15

[gregrob]

Do you have a 10 bolt? Then you probably didn't put 4.30s in it.

Why not just pop the cover and count the teeth?

[Ninja Mihail]

I TRAP AT 104 13.43 1/4 MILE STOCK MOTOR JUST A TUNE WITH LONG TUBES AND A BUILT UP TRANY NO STALL 60 FT 1.9

[Ninja Mihail]

6200 RPMS IN THIRD GEAR

[BIGT94z]

best i trapped was mid 111 in my 96 firebird. u know the mods shane. 4.11 i had in that 9in

[BIGT94z]

also whats ur 70mph rpm? i have 4.10's in the white car. shoot me a text ill look when i cruise to the show in a few hrs

[biggriff]

im 4:10's on stock motor trapped 12.96 @ 104mph at 6000-6200 (on the limiter once)...