Shift Kit
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Hypertech prom or memcal is non oem programming. You would need to remove door on ECM to verify.
Shift kits are mostly a modification to the valve body of the transmission. There are different levels of changes depending on kit chosen. Most of the time shifts are firmer than stock. There's no simple way to verify other than to compare to a know stock car.
Shift kits are mostly a modification to the valve body of the transmission. There are different levels of changes depending on kit chosen. Most of the time shifts are firmer than stock. There's no simple way to verify other than to compare to a know stock car.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
After I had a shift kit installed into my prior '88 she would chirp the tires and give a slight "wiggle" on a moderate to heavy 1-2 upshift...loved it.
Depending on which HT chip you have it may bring on the cooling fan(s) at 160deg F, or may just change timing.
Depending on which HT chip you have it may bring on the cooling fan(s) at 160deg F, or may just change timing.
Melting Slicks
Joined: Feb 2015
Posts: 2,069
Likes: 262
From: Park Ridge New Jersey
I had my transmission rebuilt and its not installed yet, is it too late to add a shift kit? Not sure if I want to do it (pro/cons??), but if I do, I wanted to see how difficult it would be
TIA
TIA
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
[QUOTE]Does the kit change any gear ratios? It sure takes off quick and I've had gears in the 4's in other cars.
Shift kits don't change transmission gear sets, so no original gear ratios are still present. Shift kits can change shift timing to a certain point by allowing quicker clutch and band apply, governor modifications can allow higher WOT rpm automatic shifting.Transmission shifting is cable controlled.
Shift kits don't change transmission gear sets, so no original gear ratios are still present. Shift kits can change shift timing to a certain point by allowing quicker clutch and band apply, governor modifications can allow higher WOT rpm automatic shifting.Transmission shifting is cable controlled.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
I believe say a TransGo kit can be installed without dropping the tranny.
The kit won't help with takeoff but say a 2,000rpm TC will really light her up on launch. I had that done along with the shift kit and could launch at 1,900rpm instead of the stock 1,400-1,500rpm...big difference
The kit won't help with takeoff but say a 2,000rpm TC will really light her up on launch. I had that done along with the shift kit and could launch at 1,900rpm instead of the stock 1,400-1,500rpm...big difference
Melting Slicks
Joined: Feb 2015
Posts: 2,069
Likes: 262
From: Park Ridge New Jersey
I believe say a TransGo kit can be installed without dropping the tranny.
The kit won't help with takeoff but say a 2,000rpm TC will really light her up on launch. I had that done along with the shift kit and could launch at 1,900rpm instead of the stock 1,400-1,500rpm...big difference
The kit won't help with takeoff but say a 2,000rpm TC will really light her up on launch. I had that done along with the shift kit and could launch at 1,900rpm instead of the stock 1,400-1,500rpm...big difference
Also what is the downside? Does it wear out other parts/transmission?
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Racer
Joined: Jul 2012
Posts: 383
Likes: 86
From: Northeast Ohio
Beardeddan
The shift kit only does what the name implies...it makes automatic shifting firmer/crisper/quicker. Shifting quicker is actually better for the trans...in general...less slipping of the clutches/friction discs in there.
Some kits are just about the shifting and they can be installed from under the car with transmission installed.
Example: https://www.summitracing.com/parts/bmm-70239
Other kits include upgraded/stronger parts that will be needed to handle higher powered engines and firm shifts.
https://www.summitracing.com/parts/sum-705036
vette196
Depending on the power of the engine and how often you drive it hard, this could lead to other parts in the trans or drivetrain to fail sooner than normal and u-joints usually become the weakest link. In other words, if the trans is otherwise stock and your engine is stock...probably no big danger with shifting firmer.
If it's your wife's car long-term...you better ensure that SHE is into firmer shifting...every...single...time...the car shifts. It can be a bit annoying when wanting to drive calmly or when it's raining and the 1-2 shift occurs in the middle of a 90-degree turn in an intersection...you can have the rear end sliding around.
Hypertech Chips
This holds part of the instructions for how the engine is to operate. Hypertech offered a few different models that would get a little more performance from the engine. Back in the day, folks were really into them, but now most folks will advise you that it isn't worth the money. You might as well identify which one you have, as some required a lower temperature thermostat, expect a certain octane of fuel, etc. It's probably one of these: https://www.summitracing.com/search/...rder=Ascending
And you know what else? Welcome to the C4 Universe! :-)
The shift kit only does what the name implies...it makes automatic shifting firmer/crisper/quicker. Shifting quicker is actually better for the trans...in general...less slipping of the clutches/friction discs in there.
Some kits are just about the shifting and they can be installed from under the car with transmission installed.
Example: https://www.summitracing.com/parts/bmm-70239
Other kits include upgraded/stronger parts that will be needed to handle higher powered engines and firm shifts.
https://www.summitracing.com/parts/sum-705036
vette196
Depending on the power of the engine and how often you drive it hard, this could lead to other parts in the trans or drivetrain to fail sooner than normal and u-joints usually become the weakest link. In other words, if the trans is otherwise stock and your engine is stock...probably no big danger with shifting firmer.
If it's your wife's car long-term...you better ensure that SHE is into firmer shifting...every...single...time...the car shifts. It can be a bit annoying when wanting to drive calmly or when it's raining and the 1-2 shift occurs in the middle of a 90-degree turn in an intersection...you can have the rear end sliding around.
Hypertech Chips
This holds part of the instructions for how the engine is to operate. Hypertech offered a few different models that would get a little more performance from the engine. Back in the day, folks were really into them, but now most folks will advise you that it isn't worth the money. You might as well identify which one you have, as some required a lower temperature thermostat, expect a certain octane of fuel, etc. It's probably one of these: https://www.summitracing.com/search/...rder=Ascending
And you know what else? Welcome to the C4 Universe! :-)
Melting Slicks
Joined: Feb 2015
Posts: 2,069
Likes: 262
From: Park Ridge New Jersey
vette196
Depending on the power of the engine and how often you drive it hard, this could lead to other parts in the trans or drivetrain to fail sooner than normal and u-joints usually become the weakest link. In other words, if the trans is otherwise stock and your engine is stock...probably no big danger with shifting firmer.
If it's your wife's car long-term...you better ensure that SHE is into firmer shifting...every...single...time...the car shifts. It can be a bit annoying when wanting to drive calmly or when it's raining and the 1-2 shift occurs in the middle of a 90-degree turn in an intersection...you can have the rear end sliding around. :-)
Depending on the power of the engine and how often you drive it hard, this could lead to other parts in the trans or drivetrain to fail sooner than normal and u-joints usually become the weakest link. In other words, if the trans is otherwise stock and your engine is stock...probably no big danger with shifting firmer.
If it's your wife's car long-term...you better ensure that SHE is into firmer shifting...every...single...time...the car shifts. It can be a bit annoying when wanting to drive calmly or when it's raining and the 1-2 shift occurs in the middle of a 90-degree turn in an intersection...you can have the rear end sliding around. :-)
I was worried that I should have added that to the transmission rebuild, but after reading what you said, I'm SO glad I didn't do it....I could imagine a shift kit with 360+ HP would not make for a happy wife.
she catches me saying "my car" all the time, I tell her its mine until its finished....then its yours
