Crash and his IRS swap thread
02-26-2011, 10:17 AM
#12
Oh well, can't be too picky. He's not a greedy guy and just wants to cover the cost. He never abused it (like 5k Launches)
02-26-2011, 10:52 AM
#14
4th Gear Member
Join Date: Jul 2008
Location: NC
Posts: 1,956
First of all grats on the hard work finding the good deal, I stuck with it and stayed patient and got lucky as well. I desperately wish they would have thrown 5 gears in the 4R70W. I think thats my #1 gripe about my car, I really really need a 4th non-OD gear sometimes on the highway. So needless to say i'm droolin a bit on the 6 speed.
So, i'm wondering, do any of you guys ever street race? If so what kind of streets and up to how fast? Because.....90% of my races are on the highway and go above 120MPH at which point 4.56's BROOOOOOOO would be a ****ing joke. If I dropped 4.10s in my rig Id have to race in overdrive just to START seeing big boy speeds, anybody ever tried that? Dropping 4.10s in a 3650 requires you to hit 4150ish RPMs in your overdrive before you start seeing big boy speeds. The most you can do with an race-practical gear is barely 100MPH. Yikes.........
With that being said, 6.14s OR GO HOME, cuz after all 6.14s are only 50-100RPM diff than 5.71s which are only 50-100RPM diff than 5.13s amirite?
So, i'm wondering, do any of you guys ever street race? If so what kind of streets and up to how fast? Because.....90% of my races are on the highway and go above 120MPH at which point 4.56's BROOOOOOOO would be a ****ing joke. If I dropped 4.10s in my rig Id have to race in overdrive just to START seeing big boy speeds, anybody ever tried that? Dropping 4.10s in a 3650 requires you to hit 4150ish RPMs in your overdrive before you start seeing big boy speeds. The most you can do with an race-practical gear is barely 100MPH. Yikes.........
With that being said, 6.14s OR GO HOME, cuz after all 6.14s are only 50-100RPM diff than 5.71s which are only 50-100RPM diff than 5.13s amirite?
02-26-2011, 11:35 AM
#16
Well with 3.55's I can hit 140mph at 6k in 4th...just doesnt get there the fastest. Our cars really should have came with a 6 speed factory just because the drop from 4-5 is just huge. With a 6 speed I really wouldnt have any issue going with 4.30's just because you have a usable 5th gear if you need to pull, but still remain civil on the highway.
02-26-2011, 11:39 AM
#17
4th Gear Member
Join Date: Jul 2008
Location: NC
Posts: 1,956
Well with 3.55's I can hit 140mph at 6k in 4th...just doesnt get there the fastest. Our cars really should have came with a 6 speed factory just because the drop from 4-5 is just huge. With a 6 speed I really wouldnt have any issue going with 4.30's just because you have a usable 5th gear if you need to pull, but still remain civil on the highway.
02-26-2011, 05:39 PM
#20
6th Gear Member
Join Date: May 2007
Location: Columbia, MO
Posts: 6,347
VERY NICE!!! I'll be going 4.30's here soon in my car, and I don't foresee it being extreme. On the highway it might be 50-100rpm difference from 4.10's and be so much more snappy.
Also, you will probably want to do bushings soon as well as an IRS brace or diff cover. After those two things you'll be loving life!!! Delrin is the only acceptable bushing material btw. All others are not as beneficial and are not much improvement over stock. If you need any links to anything for the IRS, you know where to find me.
Also, you will probably want to do bushings soon as well as an IRS brace or diff cover. After those two things you'll be loving life!!! Delrin is the only acceptable bushing material btw. All others are not as beneficial and are not much improvement over stock. If you need any links to anything for the IRS, you know where to find me.