its not so much as to 1.5psi increase. It's the cfm's. You can only squeeze so much into a hole. Your head is still stock. Once you get to a certain point, the TVS just starts stacking air in the intake manifold because the head can only take in so much. At that point, the heat starts to get high.

If I were you, I'd take both pullies to the track and try them both out.

 

Ah I got what you mean over summer with IATs about 20-30 degrees hotter and a leaking exhaust I ran 14.3 at 103.x that was on the 75mm

Last week with the 80mm I ran 14.1 at 103.x but thats with a much better tune, more meth, cooler temps and a working exhaust, also the best 60 foot I ever ran.

 

you should be trapping much higher than that man, something is not right.

 

and if you had a great 60'... you should probly be doing better than 14s...

 

2.23 60 foot isnt all that amazing but its better than the 2.4 I usually have, the car has never trapped high. We have been over this, its a slow car.

 

hmm that just doesn't seem right.

 

so sell your tvs and go back to stage 2 your car will be faster.

 

what was your 1/8th mile times and trap? Curious to see how it compares since I ran mine at the 1/8th on sunday with the 80mm.

 

i believe 79 or 80 mph

 

my car on stage 2 was def NOT faster, its that kinda stupidity thats not helping

times are on the first page I think.

 

ur only trapping what most modded m62s trap in the 1/8. Have you started working on the timing yet. I'm just really confused.

 

Is your clutch slipping?

 

How is it supidity? if stage 2 trap 103 any you track the same thing? if you had more power than a stage 2 then your traps would be higher if you wherre spinning but you have no explanation i unno im not trying to start a fight with you just gotta call em like i see em.

 

sadly i agree with darkmanx on this one... The TVS Redline trapped 110 with slicks on.... and he didn't have his tuned dialed in either.

 

^ I don't know what to think. So much goes into play. With my mods below I ran 13.5 @ 108mph on street tires. I still think tuning with meth is key for Primus.

 

rodimus, were you at innovative's dyno day a few weeks back?

 

^ I thought Matt dynoed at like over 270 whp. That is more then a modded stage II so he should beat stage II times. I freaking ran 14.2 @ 100mph bone stock. Maybe his clutch is going or something. I would really like to ride in the car or see it. Speaking of which, what are Primus's mods? AVS + what?

 

I dynoed 282.7 with stock timing and low 11s on AFR with the 75mm the other week, I'm on the 80mm now and I just finished up most of the tune aiming for mid 11s on AFR and the timing is low 20s, also switching to bigger meth nozzle.