If i add 1.9 rockers to my 2000 grand prix gtp what effects will it have on economy and various other things like that? thanks!!
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10-02-2010
If i add 1.9 rockers to my 2000 grand prix gtp what effects will it have on economy and various other things like that? thanks!!
10-02-2010
i got em and still get great mileage.. also dep. on how much more you romp on it after installing em.
where in MA you from? im originally from Lawrence
10-03-2010
You'll need a custom tune to benefit fully from the added rocker ratio. Get flow mods to let your car breathe better too and you'll get even better MPG's.
10-03-2010
Rockers + Headers + Tune = 30mpg easily if your keep your foot out of it.
10-05-2010
I got tons of mods...and I was getting 31 mpg's last night and I'm not even tuned...so hah. I got a big cam/heads
10-07-2010
damn, I only get around 22 and I'm tuned with headers, a 3.6 genV, and a hot air intake. I've got a set of 1.9's I'm waiting on valvesprings to put on.
a majority of my driving is 10 minute trips to work with a few stop signs and lights along the way though.
10-07-2010
if you use the gas at all... dont ever expect to see 30 MPG.
10-22-2010
I'm from Raynham/Taunton area =)Originally Posted by AmericanSoldier
i got em and still get great mileage.. also dep. on how much more you romp on it after installing em.
where in MA you from? im originally from Lawrence
10-25-2010
Qft lol. Blue are there any in city mpg gains from rockers or is it just highway?
10-25-2010
do you need to change the springs with SLP's 1.8 rocker?
10-25-2010
No, you can run up to 1.84 on the stock springs. Ppl have run stock with modded 1.9's though, just don't up the shift points.
10-25-2010
up them to what? mines at 5500.
10-25-2010
You should at least have them at 5800. No shift points over 6k if your running stock springs.
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