Hey guys I just decided to pull the plug in a boss manifold and jlt intake. I so hyped up but I want to know where u guys have ur limiters set so when I get my new tunes after I buy the parts in March. I want the limiter to at safe level that in cause I bounce I can sleep at night. I a lot of sprited driving and some auto cross and I have to admit I've hit my 93 bama races tunes a couple of times it happens but any info thanks guys

 

Also interested to see what people are running up to and especially if done in a track environment for extended periods of time. Would love to take my engine to 7500 rpm or so once I get out I warranty

 

I'd probably set it to 7800 and try to shift around 7600, i like the cushion.

 

That's a little extreme, even with the boss intake, unless the motor is running the boss exhaust cams with the tune optimized for them.

I think I'd max the revs at 7500.

 

Agreed I know bama runs there cold air intake tunes at 7300 and I want 7250 for mine all together so I can sleep at night

 

The springs are the issue after 7500 the stock springs can cause valve float at that point

 

Interesting conversation. I have read some of the engineering specs on the coyote version of the 5.0. Some people get away with 7800+ but 7500 should be the "limit".

 

I know nobody has the answer I want mine in the safe zone

 

This. I spun mine 7600-7800, it's the only way you actually see gains.

If you're not wanting to rev it that high, remove boss intake and re-install stock intake and have a faster car

 

kinda my thought. I wouldn't put a boss intake on my car for just three hundred extra RPM.

 

agreed but from the dyno sheets ive seen it looks like from 6500rpm to 7500rpm its all in the plus

 

as much as i like am and bama all they did here is compare the stock hp and tq at the wheels from the factorys and then the hp and tq at the wheel with all the mods not a bad thing but a trick none the less

 

 

 

 

A coworker has a 2012 Boss with longtubes and full exhaust and was dyno tuned, [no canned mail tune] it make 459-461hp and redline is set at 8000rmp. Car ran 11.60s with some 2.0 60 foot times until he gets sorted out.


Ill post some of his videos after I get them.


EDIT: Just noticed this is a Boss manifold on a GT question.

 

I'm not seeing any hp gain after 7k. Why spin higher?

 

Wrong look at 5500rpm to 7300rpm there's a huge diffrence

 

Let me state that differently - looking at the improved readings with the tune, the tune flatlines about 7k. So why worry about spinning higher than 7k? Why worry about 7.6 - 7.8?? I don't see any hp gain past 7k....

 

I see good point I only want to go to 7200