Hello.

Just wondering if anyone knows why is there no redline on the tachometer on my 1998 4.6Ltr f-150. Does anyone know what the redline is?

Thanks

 

No redline on the tach of my '05 Screw 4.6L either.. tho it seems to never get above about 5800 no matter how hard I mash it.. (well, I've never tried just WOT for like a long period just to see how high).. LOL..
Gonna order up some Troyer tunes soon and we'll see if that changes anything, tho I suspect not.. I don't think there's any benefit to revving the 4.6 much higher than 6000.. but hey, I'm drunk right now, so who the hell knows??

 

i dont know but if i was to guess i would say 6000rpm it is a ohc

 

i set mine at 5500. since with my mods it doesn make any power above 5000rpm. stock they dont push HP above 4000 really so theres no point in running it much higher than that.

 

Faster, what sort of tuner are you running?

 

SCT Xcal 2.

 

These trucks ( basically stock) are done making power at 4,800 rpms, but have to shift around 5,400 to carry the powerband into the next gear. Per Mr. Troyer, the stock torque converter is only reliable to 5,400.

 

Just before it goes KABOOM...........
The rev limiter will kick in before you need to worry.

 

they carry reliably well past that in the crown victoria and mustang GT's the only reason it would become unreliable is if its gettin starved of fluid or stays locked for to long and balloons out. or if the converter was not properly balanced.

 

Another good thread on the subject -

https://www.f150online.com/forums/sh...rque+converter

 

Mine is at 5200. It will bounce off that rpm no mater what gear I'm in. The truck is bone stock.