HEMI Performance ??
Apr 9, 2006 | 10:30 PM
#11
TECH Enthusiast
Joined: Jan 2006
Posts: 525
Likes: 0
From: Beaufort, NC
Originally Posted by kkd60
Gear ratios:RAM HEMI
1st - 3.00
2nd - 1.67 (up-shift), 1.50 (kick-down)
3rd - 1.0
4th - 0.75
5th - 0.67
Rev - 3.0
As you can see, there is a big gap between 2nd(1.67) and third(1.0) compared to the jeep 5-speed transmission
Gear ratios:JEEP SRT-8
1st - 3.59
2nd - 2.19
3rd - 1.41
4th - 1.00
5th - 0.83
Rev - 3.17
1st - 3.00
2nd - 1.67 (up-shift), 1.50 (kick-down)
3rd - 1.0
4th - 0.75
5th - 0.67
Rev - 3.0
As you can see, there is a big gap between 2nd(1.67) and third(1.0) compared to the jeep 5-speed transmission
Gear ratios:JEEP SRT-8
1st - 3.59
2nd - 2.19
3rd - 1.41
4th - 1.00
5th - 0.83
Rev - 3.17
Actually the Jeep's trans has a bigger jump (.78) than the Dodge (.67). 
It is a higher (numerically) geared trans though. 
Apr 9, 2006 | 10:37 PM
#12
TECH Resident
Joined: May 2004
Posts: 782
Likes: 0
From: Baytown
Originally Posted by SierraSport
Does all of the Hemis fall on there faces after 80mph,everyone that I have raced has been yanked by the time I hit 80mph.. WHY??
Im just asking because a guy I raced out at the meet had a 2005 Daytona and we went from a stop. Even though I spun though 1st I still caught and past him by 80mph. He was a good 2 trucks ahead of me before I hooked.. From a roll(30mph) it was pretty close up to 70 then I would start to pull and then leave him.. Just trying to figure out how my lil 4.8 can beat a HEMI??
Not Bashing Hemis or anything, just asking...
Mods:
Me-Intake,HPPIII,Muffler,3.73, & Posi
Him- Intake
I know he didnt have much, but I have a 4.8.. Come on !!
Im just asking because a guy I raced out at the meet had a 2005 Daytona and we went from a stop. Even though I spun though 1st I still caught and past him by 80mph. He was a good 2 trucks ahead of me before I hooked.. From a roll(30mph) it was pretty close up to 70 then I would start to pull and then leave him.. Just trying to figure out how my lil 4.8 can beat a HEMI??
Not Bashing Hemis or anything, just asking...
Mods:
Me-Intake,HPPIII,Muffler,3.73, & Posi
Him- Intake
I know he didnt have much, but I have a 4.8.. Come on !!
Sokay... what Hemis are you racing? Most of them will run in the Mid 15's and just a CAI can be a joke, depending on the CAI you can lose power and the same with a muffler... Torque Management is a killer on the stock trucks.... I have measured a 7 tenths gain on back to back tests with the Superchips programmer! It takes very little to make these things come alive and when HemiEdit becomes available things will become VERY interesting indeed...
BTW... got a time on your truck? My mods ( the important ones ) are listed in my sig... not many for that time..
TJ
Apr 9, 2006 | 11:03 PM
#13
Launching!
Joined: Feb 2006
Posts: 219
Likes: 0
nd ram, look again. We are not comparing the 2-3 difference, we r looking at the 2 gears seperating first gear from the 1:1 gear against our transmission that only has one gear in between first and 1:1. there is not as big a drop when shifting into 1:1 thus not falling on your face.
Apr 10, 2006 | 09:42 AM
#14
Thread Starter
Launching!
Joined: Mar 2003
Posts: 281
Likes: 0
From: Dripping Springs/Round Rock , TX
Originally Posted by MrDestinE
Sokay... what Hemis are you racing? Most of them will run in the Mid 15's and just a CAI can be a joke, depending on the CAI you can lose power and the same with a muffler... Torque Management is a killer on the stock trucks.... I have measured a 7 tenths gain on back to back tests with the Superchips programmer! It takes very little to make these things come alive and when HemiEdit becomes available things will become VERY interesting indeed...
BTW... got a time on your truck? My mods ( the important ones ) are listed in my sig... not many for that time..
TJ
BTW... got a time on your truck? My mods ( the important ones ) are listed in my sig... not many for that time..
TJ
15.5 @ 92.1 w/ a 2.3 60ft without the posi,gears,and programmer. Havent been back to the track since the other stuff..
Apr 10, 2006 | 01:47 PM
#15
TECH Resident
Joined: May 2004
Posts: 782
Likes: 0
From: Baytown
Originally Posted by SierraSport
2005 Dodge HEMI Daytona Reg Cab
15.5 @ 92.1 w/ a 2.3 60ft without the posi,gears,and programmer. Havent been back to the track since the other stuff..
15.5 @ 92.1 w/ a 2.3 60ft without the posi,gears,and programmer. Havent been back to the track since the other stuff..
if you run across the Daytona again, tell him to get on here and we can get him much faster for just a little coin!
TJ
Apr 10, 2006 | 05:44 PM
#16
TECH Enthusiast
Joined: Jan 2006
Posts: 525
Likes: 0
From: Beaufort, NC
Originally Posted by kkd60
nd ram, look again. We are not comparing the 2-3 difference, we r looking at the 2 gears seperating first gear from the 1:1 gear against our transmission that only has one gear in between first and 1:1. there is not as big a drop when shifting into 1:1 thus not falling on your face.
Originally Posted by kkd60
As you can see, there is a big gap between 2nd(1.67) and third(1.0) compared to the jeep 5-speed transmission
Jul 18, 2006 | 03:50 PM
#17
Teching In
Joined: Apr 2006
Posts: 3
Likes: 0
Well the last 4.8 i raced was a rst or something like that and i blew him a way but everybody was saying it was becuz it was 5 speed and i told them his mods and they kept saying so its 5 speed dnt give my truck no credit
Jul 18, 2006 | 09:10 PM
#18
Thread Starter
Launching!
Joined: Mar 2003
Posts: 281
Likes: 0
From: Dripping Springs/Round Rock , TX
Originally Posted by MrDestinE
That is a good mph for that time... hook it up and you will be in an easy 14...
if you run across the Daytona again, tell him to get on here and we can get him much faster for just a little coin!
TJ
if you run across the Daytona again, tell him to get on here and we can get him much faster for just a little coin!
TJ
Im getting a friends LS1 stock fans, a hot Cam, Rockers, Valve Springs, Shift Kit and All Billet Servo and this stock plastic plunger in my tranny is getting replaced by a billet one .. So it should get faster .. On the Daytona Guy, he wont talk to me anymore... :dunno:
Aug 5, 2006 | 09:38 AM
#20
TECH Enthusiast
Joined: May 2006
Posts: 730
Likes: 0
From: Las Vegas
I believe the answer is that the late model trucks no matter what make or model are governed to 80 to 100 mph. I know when I had my 05 GMC escsb 5.3 20" wheels, I raced a 05' qcsb hemi with 17" tires and we were side by side on the first race. When I installed my hypertech, I programmed my truck for 128 mph speed rated tires, which allowed me to go past 100 mph, now my truck had a few mods which were, flowmaster, volant, and hypertech. We raced the second time, and I pulled away from him past 100 mph. All he had was a CAI, and a magnaflow, but nothing to allow him to go past 100 mph. If you go with superchips tune for this, then you can get much more out of the hemi. Just my opinon, but not sure.
