At what point does a nitrous specific cam become worth while? I am getting ready to put a set of tfs220's on my sbe ls1 that I am currently spraying a 150 shot on. After the heads go one I am going to get the car tuned on a 250 shot. Currently have a btr stage 4 which is 235/242 .621 .592 on a 111+3. Is there anything to be gained by swapping to a more nitrous specific cam with the 250 jets?

 

You may pick up more than you're spraying. For example, BTR has a 244/256 cam that picks up 400 on a 300 shot on the 400cid motors.

That cam you have should still be ok with a 250 shot. Once you go over the 250 shot I'd start trying to optimize the cam and heads (nitrous exhaust port for example).

 

On a 250 shot I think you're getting into that grey area where a n/a cam will work just fine, but where a nitrous specific grind would probably help some. If it's not a track car that will see lots of nitrous I'd just stick with a n/a cam

 

Thanks for the response guys. It actually only picked up like 128hp or so with the 150 shot. The car gets driven on the street a good bit, but I'm not worried about NA performance. Performance on the track is the primary goal

 

I picked up 130rwhp on a 150 pill with a BTR Stage 3.
Depends on you goals. I'd see how the current shot with the new heads does first (one change at a time). I think the Stage 3 and 4 are good to about a 200 shot. A nitrous cam would be best but probably loose some low end N/A.

 

If I did my own tuning I would definitely see how it did with the same cam. But if it is worth while to get a custom cam cut for my set up now, I would rather only pay for one tune. I searched and couldn't find any threads with anyone spraying over 200 on a similar cam. Anyone have any experience?