Question on GS400 3.26 rear diff in a gte swapped auto SC...
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Question on GS400 3.26 rear diff in a gte swapped auto SC...
Hey guys, I'm hoping someone has done this swap already so I can get some insight.
I have a 95 gte swapped SC400 with a built boostlogic auto tranny. Now that the bugs are kinda worked out on the car I can really get on it. I noticed that highway rpms are kinda high at 70-75. I'm seeing about 3100 - 3300 rpms or so.
Was thinking about puttin in a 3.26 rear which I know the pumpkins bolt up. This will give me some more gear for highway racing and drag racing since I shouldn't be using O/D under full boost since it hurts the tranny.
Has anyone else done this swap in an auto SC?
I have seen ppl do the swap in a 6 spd car.
Thanks for the insight everyone.
I have a 95 gte swapped SC400 with a built boostlogic auto tranny. Now that the bugs are kinda worked out on the car I can really get on it. I noticed that highway rpms are kinda high at 70-75. I'm seeing about 3100 - 3300 rpms or so.
Was thinking about puttin in a 3.26 rear which I know the pumpkins bolt up. This will give me some more gear for highway racing and drag racing since I shouldn't be using O/D under full boost since it hurts the tranny.
Has anyone else done this swap in an auto SC?
I have seen ppl do the swap in a 6 spd car.
Thanks for the insight everyone.
Last edited by PaCowboy; 08-10-14 at 04:51 PM.
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Ya I got a 3.92 rear. Single turbo S366, boostlogic trans with an aem v2.
On the highway or standing starts it just seems to run out of gear to fast esp when I can't really use overdrive under full boost since the trans can def be broken that way.
I was gonna go tt auto rear but I'm not really gaining all that much gear back from 3.92 down to a 3.76.
This is my quandary.
On the highway or standing starts it just seems to run out of gear to fast esp when I can't really use overdrive under full boost since the trans can def be broken that way.
I was gonna go tt auto rear but I'm not really gaining all that much gear back from 3.92 down to a 3.76.
This is my quandary.
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Im in a similar dilemma I'm assuming. Im running my car with the LS1/T56 with my stock 4.27 rear end, and although the acceleration is amazing, Im hitting 5th gear on the big end.
Im debating on gear ratio's, and also plan on jumping to a 28" tire. At the moment Im considering the 3.62 from the LS, but still need an LSD, so also toying with the fitting of a Ford 8.8 IRS with 3.55's and a locker.
I think the 3.26 may be too high for the auto at the track unless your going to 2-step from the line to keep your 60' acceptable. Im even pretty weary to use the 3.26 gears with the T56 in my car..so many choices, yet so limited.
Im debating on gear ratio's, and also plan on jumping to a 28" tire. At the moment Im considering the 3.62 from the LS, but still need an LSD, so also toying with the fitting of a Ford 8.8 IRS with 3.55's and a locker.
I think the 3.26 may be too high for the auto at the track unless your going to 2-step from the line to keep your 60' acceptable. Im even pretty weary to use the 3.26 gears with the T56 in my car..so many choices, yet so limited.
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Im in a similar dilemma I'm assuming. Im running my car with the LS1/T56 with my stock 4.27 rear end, and although the acceleration is amazing, Im hitting 5th gear on the big end.
Im debating on gear ratio's, and also plan on jumping to a 28" tire. At the moment Im considering the 3.62 from the LS, but still need an LSD, so also toying with the fitting of a Ford 8.8 IRS with 3.55's and a locker.
I think the 3.26 may be too high for the auto at the track unless your going to 2-step from the line to keep your 60' acceptable. Im even pretty weary to use the 3.26 gears with the T56 in my car..so many choices, yet so limited.
Im debating on gear ratio's, and also plan on jumping to a 28" tire. At the moment Im considering the 3.62 from the LS, but still need an LSD, so also toying with the fitting of a Ford 8.8 IRS with 3.55's and a locker.
I think the 3.26 may be too high for the auto at the track unless your going to 2-step from the line to keep your 60' acceptable. Im even pretty weary to use the 3.26 gears with the T56 in my car..so many choices, yet so limited.
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I said 3.54 because I was just talking to my friend with a 240sx and he needs the 3.54 out the Q45T...I stand corrected.
Yeah the older LS400 96-97
3.62 out of the LS400, I know 96-97 are , not sure about the rest of the older ones.
Yeah the older LS400 96-97
3.62 out of the LS400, I know 96-97 are , not sure about the rest of the older ones.
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