4L80e swap underway, Final questions-those who did it chime in!
#1
4L80e swap underway, Final questions-those who did it chime in!
I've got my parts gathering for my 4L80e swap almost complete.
Here's what I got:
4L80e w/ vaccuum modulated valve bodies
4L80e dust cover
TH400 yoke used with this exact transmission in another LSx vehicle
Vigilante stall
The stall converter is going to be gone through and restalled by Precision.
The trans is going to be taken apart and checked by a local trans builder-he build's Ed Wright's trannys so it's going to be as good as it can get.
I still need:
Dipstick
Speartech harness
Crossmember
Flexplate
Flywheel
Here's my questions:
Do I REALLY need to get a different flexplate or flywheel or will my current ones work? If I need different ones, what brand do you suggest?
The harness and dipstick are a definate.
I will eventually get the TCI standalone computer for fine tuning, but that's not happening right now due to cost issues.
My main question is this:
Does it matter which crossmember I go with? Both BMR and Yank have one, and Yank's is less money. I was wondering if you all thought this would mean a lack of quality or would I just be paying for the BMR name?
I am really wanting to keep my stock torque arm for now to cut costs and get this running ASAP, all I will need to do is get some OEM torque arm bushings for my stock tq. arm to work with the new crossmember, correct?
What else guys? Thanks
Here's what I got:
4L80e w/ vaccuum modulated valve bodies
4L80e dust cover
TH400 yoke used with this exact transmission in another LSx vehicle
Vigilante stall
The stall converter is going to be gone through and restalled by Precision.
The trans is going to be taken apart and checked by a local trans builder-he build's Ed Wright's trannys so it's going to be as good as it can get.
I still need:
Dipstick
Speartech harness
Crossmember
Flexplate
Flywheel
Here's my questions:
Do I REALLY need to get a different flexplate or flywheel or will my current ones work? If I need different ones, what brand do you suggest?
The harness and dipstick are a definate.
I will eventually get the TCI standalone computer for fine tuning, but that's not happening right now due to cost issues.
My main question is this:
Does it matter which crossmember I go with? Both BMR and Yank have one, and Yank's is less money. I was wondering if you all thought this would mean a lack of quality or would I just be paying for the BMR name?
I am really wanting to keep my stock torque arm for now to cut costs and get this running ASAP, all I will need to do is get some OEM torque arm bushings for my stock tq. arm to work with the new crossmember, correct?
What else guys? Thanks
#2
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Originally Posted by SVT THIS
Do I REALLY need to get a different flexplate or flywheel or will my current ones work? If I need different ones, what brand do you suggest?
#4
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the stock PCM can control the 4L80E
ref this thread: https://ls1tech.com/forums/automatic-transmission/458718-4l80e-swap-info.html
ref this thread: https://ls1tech.com/forums/automatic-transmission/458718-4l80e-swap-info.html
#5
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Originally Posted by BigBake
I got a complete Truck Shorblock that I am building my Engine out of, and I was goin to use the Flexplate from that Engine.. it looks alot meatier than that one..
Last edited by the_merv; 05-19-2007 at 12:14 PM.
#6
Sorry, I might have been unclear about my torque arm question. I AM going to get an aftermarket crossmember from BMR or Yank (help me decide!), however, on the BMR website it says that the crossmember they have is set up for using the BMR torque arm, yet, you can use a different torque arm if you use the correct bushings for the desired torque arm. So, if I get a BMR or a Yank crossmember for the 4L80e, will I be able to use my stock torque arm if I use OEM torque arm bushings?
So, I am getting the flexplate from TCI.
-What crossmember do you all suggest-More bucks for BMR, or less bucks for Yanks?
-I JUST installed 4L60e poly trans mounts with my motor install. They have literally 200 miles on them. Will this work with the 4L80e or will I need different mounts? Should I go with poly mounts or OEM?
So, I am getting the flexplate from TCI.
-What crossmember do you all suggest-More bucks for BMR, or less bucks for Yanks?
-I JUST installed 4L60e poly trans mounts with my motor install. They have literally 200 miles on them. Will this work with the 4L80e or will I need different mounts? Should I go with poly mounts or OEM?
#7
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Originally Posted by the_merv
Is that the Stock LS1 Flexplate..looks like there is nothin to it..
I got a complete Truck Shorblock that I am building my Engine out of, and I was goin to use the Flexplate from that Engine.. it looks alot meatier than that one..
I got a complete Truck Shorblock that I am building my Engine out of, and I was goin to use the Flexplate from that Engine.. it looks alot meatier than that one..
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#8
Should I just call TCI and discuss my application with them and see what they reccommend? Also, any opinions on the Yank vs. BMR crossmember? Finally, any input on my being able to use the stock torque arm if I get new bushings with the crossmember for the stock torque arm, even if only temporary?
#10
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I second the get an SFI flexplate. Mine for the LT1 cost 70 bucks.
Remember also your feet are very close to this area.
Don't wanna be gimping around on a wooden leg for the rest of your life wishin you woulda spent the extra 100 bucks on good flexplate.
Remember also your feet are very close to this area.
Don't wanna be gimping around on a wooden leg for the rest of your life wishin you woulda spent the extra 100 bucks on good flexplate.
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Originally Posted by SVT THIS
Sorry, I might have been unclear about my torque arm question. I AM going to get an aftermarket crossmember from BMR or Yank (help me decide!), however, on the BMR website it says that the crossmember they have is set up for using the BMR torque arm, yet, you can use a different torque arm if you use the correct bushings for the desired torque arm. So, if I get a BMR or a Yank crossmember for the 4L80e, will I be able to use my stock torque arm if I use OEM torque arm bushings?
So, I am getting the flexplate from TCI.
-What crossmember do you all suggest-More bucks for BMR, or less bucks for Yanks?
-I JUST installed 4L60e poly trans mounts with my motor install. They have literally 200 miles on them. Will this work with the 4L80e or will I need different mounts? Should I go with poly mounts or OEM?
So, I am getting the flexplate from TCI.
-What crossmember do you all suggest-More bucks for BMR, or less bucks for Yanks?
-I JUST installed 4L60e poly trans mounts with my motor install. They have literally 200 miles on them. Will this work with the 4L80e or will I need different mounts? Should I go with poly mounts or OEM?
If you use our crossmember and a poy bushing for the stock style torque arm the stock arm will work fine. An additional feature our crossmembers have are the adjustment holes for the torque arm allowing you to move it up and down. If you have any other questions regarding our product line please feel free to ask
Lee Spicher
lee@bmrfabrication.com
(813)986-9302
#13
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Originally Posted by the_merv
Where are you guys getting this SFI Flexplate.. do you have a link?
#16
Well I just got me a TCI SFI approved flexplate from SDPC. It is part number 399753 from TCI, it says on SDPCs website that it will NOT work with 4L80e trans, but I have a 4L80e/LSx conversion converter and was told that this stall should bolt on to any LSx flexplate. Opinions on this one? I didn't feel like spending $300+ for another one, ie Fidanza.
I've also decided to go with the Yank crossmember, it is about $60 cheaper and every penny counts as I squeeze together all my cash to get this thing running again.
I've also decided to go with the Yank crossmember, it is about $60 cheaper and every penny counts as I squeeze together all my cash to get this thing running again.
#17
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Originally Posted by SVT THIS
Well I just got me a TCI SFI approved flexplate from SDPC. It is part number 399753 from TCI, it says on SDPCs website that it will NOT work with 4L80e trans, but I have a 4L80e/LSx conversion converter and was told that this stall should bolt on to any LSx flexplate. Opinions on this one? I didn't feel like spending $300+ for another one, ie Fidanza.
I've also decided to go with the Yank crossmember, it is about $60 cheaper and every penny counts as I squeeze together all my cash to get this thing running again.
I've also decided to go with the Yank crossmember, it is about $60 cheaper and every penny counts as I squeeze together all my cash to get this thing running again.