Yeah the more aggressive tread will soak up mph . Not much you can do with the springs as far as getting topend back, But, you send the clutch to Vforcejohn for a stage3 mod. It'll give ya the topend back.
You can put a black or almond secondary in it to get some of the bottom end torque back.
I'm with everyone else - gonna be hard to get your top end back without sending ur primary off to vfj. I can't believe you lost that much to begin with. I could see 2 or 3 maybe but 7... interesting...
I wouldnt change the secondary at all - no need to with that size but if you do want some back go with stage 3 work and maroon primary - that will put you back up high 60's - low 70's. Now remember ur speedo is gonna off now that uve upped the tires so dont trust the speedo - GPS it and see what u get.
This probably won't give you a whole lot of piece of mind but going from a 25" to a 26" tire your speedometer is off by approximately 4%. Which means when your speedometer says your going 50 mph, your actually going 52 mph. So you probably only lost like 4 mph instead of 7.
You've still added a lot of weight over stock. I was thinking you were running 12/10 combo which is 31/27lbs. When considering you can get a 27" Zilla which is 24.3/21.5lbs. As mentioned a spring setup isn't going to help you gain speed on the high end, but only gain your low end grunt back. Clutch mod or engine upgrades would be your only hope.
My 26x12 MST's are 28lbs and I'm running that on all 4.......... No problems w/ bottom end torque... So my suggestion is maroon primary/black secondary. Or get both and try them and see which you like better. They dont cost that much and you can ALWAYS sell a secondary spring real easy. People are always buying almond secondaries.
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