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LS N/A Tranny.

Discussion in 'Engine Building' started by korey, Dec 25, 2003.

  1. korey

    korey Senior Member

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    I was wondering if an LS Tranny with an ITR Final drive is a good idea. I really dont know too much about transmission anything so if I say something that is dumb, please correct me. I plan to have this as an all motor LS, nothing Insanely fast, but quick. Anyone with advice, please help me out, thanx.
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    without modification, it won't work.

    ls/b16a share a similar size diff/ring gear
    gsr/b18c specR/b16b/ share a different size.

    frankly, the ls tranny isn't as bad as everyone on the net plays it out to be. you can do a LOT more to your "effective gears" with tire size...
     
  3. JDMilan

    JDMilan Senior Member

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    I think you would be better off with the GSR tranny.
     
  4. screamin_DB2

    screamin_DB2 Junior Member

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    yup go with a gsr trans or even si [assuming your trans is hydro]. but if you care about highway driving alot, watch your 5th gear. youll be revving pretty high i think 4-5k at 60? i forgot the exact number but youll be up there in your rpm range. some people swap in the gsr/si trans with an LS 5th if they are do alot of highway driving.
     
  5. jamesA

    jamesA Well known pissed off telephone guy VIP

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    5th gear at 65 in the 99-00 Si tranny is around 3500-4000 rpm. 80 mph is 4500, thats what I did the entire way back from Indy thanksgiving day...and still managed to get 27 mpg. :eek: :worthy:
     
  6. sleeperls93

    sleeperls93 Senior Member

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    I drive alot, so I know exactly, I'm at 3800 rpm's at 70 mph with the b16 tranny. It's not thatbad I still get 30 mpg.
     
  7. JDMilan

    JDMilan Senior Member

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    usually with the ls tranny the SiR gearing is a little too much, that is why i suggested the GSR gearing, but SiR gearing for optiimal gains.
     
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