are gears my next step? - Chrysler 300C Forum: 300C & SRT8 Forums
1st Gen SRT8-Specific Performance & Engine/Intake/Exhaust Mods This section is for topics related to SRT8 performance & performance mods. For non SRT8-specific topics, please post in the All Models Forums.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 40 (permalink) Old 02-20-2013, 03:32 PM Thread Starter
Senior Member
Points: 5,997, Level: 1 Points: 5,997, Level: 1 Points: 5,997, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Dec 2007
Location: CT
Posts: 154
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
are gears my next step?

hey everybody .ill give you guys the rundown quick.

I have a 2007 chrysler srt i have a decent sized rear mount turbo along with headers i think a 2900 stall converter and have changed rear axels ( i think i took the 09 magnums)

anyway, i have 550rwhp and can NOT get into the 11's. I run nitto 555r's because the track is 1.5hrs away and im still afraid even with the axle change. I cant get out of the hole my 60ft is like 1.8-1.9 my end speed is around 120mph and im running 12-12.5...

I can not get the turbo to spool off the line, my next step is to hollow out my already not working high flow cats. I refuse to install nitrous so MY question is about changing the gears?

What fun would that provide/ a little help out of the hole?
thanks in advance
Nick

'07 300cSRT-8
tinted
Smoke LED tail lights
Roof spoiler
Diablo predator 93oct CAI
IPOD Integration
Demolded
KOOKS heads and HI-Flo's
STS T-67
Pro-torque 3800
cymbrk is offline  
Sponsored Links
Advertisement
 
post #2 of 40 (permalink) Old 02-20-2013, 03:36 PM
Elite Contributing Member
Points: 28,114, Level: 1 Points: 28,114, Level: 1 Points: 28,114, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 21% Activity: 21% Activity: 21%
 
onesickhotrod's Avatar
 
Join Date: Jul 2009
Location: Rochester, New York
Posts: 2,386
Thanks: 53
Thanked 282 Times in 235 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Garage
Send a message via AIM to onesickhotrod
[QUOTE=cymbrk;1140933]hey everybody .ill give you guys the rundown quick.

I have a 2007 chrysler srt i have a decent sized rear mount turbo along with headers i think a 2900 stall converter and have changed rear axels ( i think i took the 09 magnums)

anyway, i have 550rwhp and can NOT get into the 11's. I run nitto 555r's because the track is 1.5hrs away and im still afraid even with the axle change. I cant get out of the hole my 60ft is like 1.8-1.9 my end speed is around 120mph and im running 12-12.5...

I can not get the turbo to spool off the line, my next step is to hollow out my already not working high flow cats. I refuse to install nitrous so MY question is about changing the gears?

What fun would that provide/ a little help out of the hole?
thanks in advance
Nick


Your set up is the hardest to launch!

What tires and size rims are you running?


Rochester, NY

See my garage for upgrades
onesickhotrod is online now  
post #3 of 40 (permalink) Old 02-20-2013, 04:51 PM Thread Starter
Senior Member
Points: 5,997, Level: 1 Points: 5,997, Level: 1 Points: 5,997, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Dec 2007
Location: CT
Posts: 154
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
haha...that part i have figured out...
cymbrk is offline  
post #4 of 40 (permalink) Old 02-20-2013, 04:52 PM Thread Starter
Senior Member
Points: 5,997, Level: 1 Points: 5,997, Level: 1 Points: 5,997, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Dec 2007
Location: CT
Posts: 154
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
umm the nittos are stock 20" rim ( ive been told to drop to 18 havent done that yet) i think they are 245/45's
cymbrk is offline  
post #5 of 40 (permalink) Old 02-20-2013, 05:24 PM
Super Moderator
Points: 54,114, Level: 1 Points: 54,114, Level: 1 Points: 54,114, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 100% Activity: 100% Activity: 100%
 
MADDOG's Avatar
 
Join Date: Apr 2007
Location: Oregon
Posts: 14,186
Thanks: 331
Thanked 1,784 Times in 1,610 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Garage
If you go to a 3.73 rear gear and some DR's at the track, you'll hook. Just do a Getrag or Chally LSD conversion to get those forged axles.

Michael
2006 300C SRT8
MADDOG is online now  
post #6 of 40 (permalink) Old 02-20-2013, 06:14 PM
Elite Contributing Member
Points: 28,114, Level: 1 Points: 28,114, Level: 1 Points: 28,114, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 21% Activity: 21% Activity: 21%
 
onesickhotrod's Avatar
 
Join Date: Jul 2009
Location: Rochester, New York
Posts: 2,386
Thanks: 53
Thanked 282 Times in 235 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Garage
Send a message via AIM to onesickhotrod
Re: are gears my next step?

Quote:
Originally Posted by MADDOG View Post
If you go to a 3.73 rear gear and some DR's at the track, you'll hook. Just do a Getrag or Chally LSD conversion to get those forged axles.
Agreed!

Sent from my junk Droid 2 Global
onesickhotrod is online now  
post #7 of 40 (permalink) Old 02-20-2013, 09:24 PM
Lifetime Premium Member
Points: 73,893, Level: 1 Points: 73,893, Level: 1 Points: 73,893, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 86% Activity: 86% Activity: 86%
 
silver06hemic's Avatar
 
Join Date: Jul 2008
Location: Naples, FL
Posts: 4,332
Thanks: 688
Thanked 718 Times in 589 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Garage
Re: are gears my next step?

Launching a turbocharged car with a stall converter is a chore anyway.. hell my n/a car won't launch half the damn time and I'm having traction issues slowing me down as well. What RPM do you launch at and do you flash the converter and go or do you hold it up to stall and launch? Our cars pull timing after a second or two and most people who flash and go have better hole shots. However for the traction issues I would follow maddog, you need to beef her up, consider dss axles as you have a combo with the right tire that would pull damn hard if it will hook. The lack of spool right now may actually benefit you till traction is less of an issue as if you flash it and had a quick spool so you were well in boost off the line... Your never gonna hook.

Sent from my HTCEVOV4G using AutoGuide.Com Free App

FRI'd Sidewinder, Novi 1200 S/C @ 5.5psi, Custom TR1235 A2A Intercooler, Ported SRT Headers & Gutted Mid's, EGR, MDS & 02 Delete, Custom Catback w/Blastin Bobs SRT Pipes 4" tips, 170 Tstat, Big Bully Catchcan, 3.06 diff, 2800 stall, MTCM, Tranzformer, SRT Rad, SRT P/S Cooler, 5/15% Tint, SRT 20's, SRT Spoiler & Bumpers, Custom Stainless Grill, SE Coilovers.

AMP'd, FRI'd and Blown... 422rwhp/463rwtq @ 5.5psi conservative street tune!
silver06hemic is online now  
post #8 of 40 (permalink) Old 02-21-2013, 05:33 AM
Super Moderator
Points: 29,406, Level: 1 Points: 29,406, Level: 1 Points: 29,406, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 14% Activity: 14% Activity: 14%
 
Join Date: Oct 2005
Location: sunny florida
Posts: 7,696
Thanks: 17
Thanked 128 Times in 119 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Gears certainly do not help you to HOOK!

"In a democracy, dissent is an act of faith."
J. William Fulbright


Steve
06 300C SRT8 all stock
Best ET-12.79 Best trap speed-111 mph. ESP on!
I finally have my software! Happy Diablo owner.

My Favorite "old car"... 73 Super Duty 455 Trans Am - 13.08 @109 mph when brand new! Just try and find one now!
stevesrt8 is offline  
post #9 of 40 (permalink) Old 02-21-2013, 06:00 AM
Lifetime Premium Member
Points: 73,893, Level: 1 Points: 73,893, Level: 1 Points: 73,893, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 86% Activity: 86% Activity: 86%
 
silver06hemic's Avatar
 
Join Date: Jul 2008
Location: Naples, FL
Posts: 4,332
Thanks: 688
Thanked 718 Times in 589 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Garage
Re: are gears my next step?

Quote:
Originally Posted by stevesrt8 View Post
Gears certainly do not help you to HOOK!
That's what I'm saying! To me any tq multiplier is going to make it tougher to launch without ultra sticky tires! I read the earlier responses and thought I was going nuts?! Lol.. to me if you can't hook already just dropping gears is going to make it even easier... Especially with boost and a stall converter. To me beef up the rear end as it sounds like he's at his limit before an axle break and find some dr's to try before swapping gears.

Sent from my HTCEVOV4G using AutoGuide.Com Free App
silver06hemic is online now  
post #10 of 40 (permalink) Old 02-21-2013, 07:54 AM Thread Starter
Senior Member
Points: 5,997, Level: 1 Points: 5,997, Level: 1 Points: 5,997, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Dec 2007
Location: CT
Posts: 154
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by silver06hemic View Post
That's what I'm saying! To me any tq multiplier is going to make it tougher to launch without ultra sticky tires! I read the earlier responses and thought I was going nuts?! Lol.. to me if you can't hook already just dropping gears is going to make it even easier... Especially with boost and a stall converter. To me beef up the rear end as it sounds like he's at his limit before an axle break and find some dr's to try before swapping gears.

Sent from my HTCEVOV4G using AutoGuide.Com Free App


Thanks everyone for info so far.. I don't think flashing converter will help
I can sit on the line and my brakes will hold the car. It will only rev till around 3500 maybe a
Little more. Boost gauge at -7 ( starts building at 0) I can get the car to hook from start if I am at right rpm. My issue is after hook it's that .5-1sec slug to begin the spool. I'm thinking maybe my airflow restriction is preventing spooling?? I thought maybe a change of gears could bring me out of thAt hole faster .

The exhaust has been changed around so both pipes are flowing directly into turbo. I'm going to hollow cats out completely (like I said since they aren't working anyway) hoping that Will allow me to build more..
cymbrk is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chrysler 300C Forum: 300C & SRT8 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing Coolant Reservoir - Step by step or video denthird Engine Cooling 3 02-09-2013 12:39 PM
Step by Step (by Step by Step) Guide on Nav Joystick Replacement Mr. iNCREDIBLE Car Audio/Alarms/UConnect/Navigation 41 10-07-2011 12:58 PM
Can I Install Hid On A Touring Using The Step By Step On A Srt8 Or C ???? BIG TOMAS Lighting Discussion 0 03-31-2009 07:27 PM
How-To---Step by Step on how to repair broken REC Nav unit Joystick Mr. iNCREDIBLE Tech Tips - DIY - How-To 0 09-23-2008 12:31 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
Inactive Reminders By Icora Web Design