| Slant Six Forum https://slantsix.org/forum/ |
|
| 998 Or 999 1st Gear Upgrade - Behind A Slant https://slantsix.org/forum/viewtopic.php?t=25787 |
Page 1 of 1 |
| Author: | Terencejiminy [ Sat Nov 10, 2007 7:35 pm ] |
| Post subject: | 998 Or 999 1st Gear Upgrade - Behind A Slant |
IF YOU GO WITH THE LOWER RATIO 998/999 1ST GEAR IN A 904 WON'T THE NEW 1ST TO 2ND WIDER RPM DROP PRETTY MUCH ELIMINATE ANY GAIN IN 60 FOOT TIMES? Can the Slant recover from such a wider drop?  I HAVE MY TRANS ON THE BENCH AND AM CONTEMPLATING WHICH GEAR SET TO PUT BACK IN. THANKS  TERRY |
|
| Author: | Shaker223 [ Sat Nov 10, 2007 7:43 pm ] |
| Post subject: | |
I the 2.74:1 first gear transmissions had a 1.54:1 second gear as opposed to a 1.45:1. The FSM has the ratios. |
|
| Author: | Doctor Dodge [ Sat Nov 10, 2007 7:58 pm ] |
| Post subject: | |
The wide ratio is not that noticable when you have a high stall converter and a deep rear end ratio.  DD |
|
| Author: | slantzilla [ Sat Nov 10, 2007 8:16 pm ] |
| Post subject: | |
The big drop is between 2nd and 3rd.  No, it will not recover. You will gain ET down low and give it back at the big end.  Been there, done that, got the T-shirt.  It is fun for stoplight racing though.
|
|
| Author: | Terencejiminy [ Sun Nov 11, 2007 7:23 am ] |
| Post subject: | Slant recovery |
With an engine limited due to our head restrictions (flow and saimeze port heat transfer) to 6700 max. I believed the beginning of the peak torque band would be missed (came in too far below) with the shift/rpm drop. Thanks for the info. I'm looking at a 3600 stal convertor and for 1/4 mile a 4.30 gear. This is a 10" slick car.  Thoughts?Thanks Terry |
|
| Author: | slantzilla [ Sun Nov 11, 2007 9:39 am ] |
| Post subject: | Re: Slant recovery |
Quote: With an engine limited due to our head restrictions (flow and saimeze port heat transfer) to 6700 max. I believed the beginning of the peak torque band would be missed (came in too far below) with the shift/rpm drop. Thanks for the info.
How tall of a tire?I'm looking at a 3600 stal convertor and for 1/4 mile a 4.30 gear. This is a 10" slick car. Thoughts?Thanks Terry I am gonna try a 4.56 with a 28X9X15 slick and a 4000 converter. |
|
| Author: | Charrlie_S [ Sun Nov 11, 2007 10:09 am ] |
| Post subject: | Re: Slant recovery |
Quote: and a 400 converter.
I don't think your engine will idle that low. 
|
|
| Author: | slantzilla [ Sun Nov 11, 2007 11:21 am ] |
| Post subject: | Re: Slant recovery |
Quote: Quote: and a 400 converter.
I don't think your engine will idle that low.
|
|
| Author: | Terencejiminy [ Sun Nov 11, 2007 5:10 pm ] |
| Post subject: | Slant recovery |
OOPS... Should have used the Spell Check........ |
|
| Author: | Terencejiminy [ Sun Nov 11, 2007 5:12 pm ] |
| Post subject: | Re: Slant recovery |
I am gonna try a 4.56 with a 28X9X15 slick and a 4000 converter Same size tire I'm looking at. Also for the Daytona body I'm using now it will look a lot better.What kinds of trap RPM's do you expect? Terry |
|
| Author: | Romeo Furio [ Tue Nov 13, 2007 3:21 pm ] |
| Post subject: | low gear set |
I have used both and prefer the standard gear set. We use a 5000 converter,4.30 gears, and 26" tall drag radials ( MT 235/60/15 ). Car with driver about 3000 lbs. |
|
| Author: | Terencejiminy [ Wed Nov 14, 2007 7:37 am ] |
| Post subject: | 904 - 998/999 mods |
The proposed car is to be right at 2600 lbs with driver. Thanks to all,  Terry |
|
| Author: | slantzilla [ Thu Nov 15, 2007 10:07 am ] |
| Post subject: | |
I am shooting for going through the traps at 62-6300. My car is considerably heavier than yours.
|
|
| Page 1 of 1 | All times are UTC-07:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|