Cerb LS1 The hard work begins!!
Discussion
Good on ya - if you need any tip just ping me.
T56 will not fit - don't even bother - sorry to break it you will need a new or good tko.
AC will not fit inside the TVR chassis rails - we tried for on in Lichtenstein - absolutely no room.
You could try moving the position of it but we spent and age trying to make it work with the confinds of the tvr chassis rails and a US Hotrod company with alsorts of different brackets.
LS1 std will have 4.2 Cerb type power but more torque - alot less reving - will loose out on revability but gain in lower down grunt.
All the Best
Jelly
T56 will not fit - don't even bother - sorry to break it you will need a new or good tko.
AC will not fit inside the TVR chassis rails - we tried for on in Lichtenstein - absolutely no room.
You could try moving the position of it but we spent and age trying to make it work with the confinds of the tvr chassis rails and a US Hotrod company with alsorts of different brackets.
LS1 std will have 4.2 Cerb type power but more torque - alot less reving - will loose out on revability but gain in lower down grunt.
All the Best
Jelly
shpub said:
Ffirg 005 said:
Fact is, Brummiewedge is the only guy who has actually completed this conversion in a Cerb
Not quite, my LS1 powered Cerb moves under its own steam and has just had its first mapping session. PS I mated the engine onto the existing Cerb T5 based transmission. ![hehe](/inc/images/hehe.gif)
Look forward to pictures and poss a write up in the not too distant
![thumbup](/inc/images/thumbup.gif)
Thanks for all the comments guys, nothing wrong with coal/steam power, I'd certainly get the train to work if they were.![laugh](/inc/images/laugh.gif)
Been looking for engine mounts. What do you think of these?
http://www.speedwaymotors.com/p/7631,122_LS1andLS6...
I've removed the wiring loom and emission control systems ready for a test fit to see what clearances if any I've got. Then I can see if moving the engine fowards would give me clearance to fit long tube manifolds that pass the bell housing. I'm thinking along the lines at the moment of running the exhaust past the bell housing and then below the gearbox, maybe oval tube.
Just measured the clearance on Craigs car, its 4" ground to back of sump, 5" to main chassis rail. Eg not very much![frown](/inc/images/frown.gif)
I wonder if the LS1 could sit higher.
Can't really sort it out in front of a computer, need to see it to solve it.
Don't mind if the answer is TKO, just want to be sure it will solve the problems, anyone know how good the clearance is with a TKO could 3" pipe sit either side??
Rich.
![laugh](/inc/images/laugh.gif)
Been looking for engine mounts. What do you think of these?
http://www.speedwaymotors.com/p/7631,122_LS1andLS6...
I've removed the wiring loom and emission control systems ready for a test fit to see what clearances if any I've got. Then I can see if moving the engine fowards would give me clearance to fit long tube manifolds that pass the bell housing. I'm thinking along the lines at the moment of running the exhaust past the bell housing and then below the gearbox, maybe oval tube.
Just measured the clearance on Craigs car, its 4" ground to back of sump, 5" to main chassis rail. Eg not very much
![frown](/inc/images/frown.gif)
I wonder if the LS1 could sit higher.
Can't really sort it out in front of a computer, need to see it to solve it.
Don't mind if the answer is TKO, just want to be sure it will solve the problems, anyone know how good the clearance is with a TKO could 3" pipe sit either side??
Rich.
shpub said:
Ffirg 005 said:
Fact is, Brummiewedge is the only guy who has actually completed this conversion in a Cerb
Not quite, my LS1 powered Cerb moves under its own steam and has just had its first mapping session. PS I mated the engine onto the existing Cerb T5 based transmission. GingerNinja said:
Not worried that your LS is perhaps a little over torqued for the gearbox....which is, after all, only rated to 300ish ft-lb? ?
Nope. If this was a real issue then nearly every 5 litre Griff and Chimaera would be leaving a trail of cogs behind them as they are all in the 300+ lbft of torque levels of performance. Indeed, many cars are now in the 350+ level and have not experienced a problem. BTW the original engined Cerbs coped with similar torque levels including the gearbox in my car which has done over 100kmiles. It has been rebuilt by CTS though as a precaution.Most of the T5 issues have come from the lesser speced versions that were used in the US.
If it is an issue, then I'll get a CTS/Quaife upgrade for it.
shpub said:
GingerNinja said:
Not worried that your LS is perhaps a little over torqued for the gearbox....which is, after all, only rated to 300ish ft-lb? ?
Nope. If this was a real issue then nearly every 5 litre Griff and Chimaera would be leaving a trail of cogs behind them as they are all in the 300+ lbft of torque levels of performance. Indeed, many cars are now in the 350+ level and have not experienced a problem. BTW the original engined Cerbs coped with similar torque levels including the gearbox in my car which has done over 100kmiles. It has been rebuilt by CTS though as a precaution.Most of the T5 issues have come from the lesser speced versions that were used in the US.
If it is an issue, then I'll get a CTS/Quaife upgrade for it.
If you have the money get a tko. And if you don't GET a TKO - cos when the t5 goes it will be when you least expect it and likely when you are even more skint!!!!!!!!!
![wink](/inc/images/wink.gif)
Hope that helps.
Oooh and get the lump HARD up against the bulkhead (like all LS installs I have seen and all Std TVR lumps from the factory), if it is not done like this - you might as well not bother in the first place! I have seen pic's of one or two installs where their engine is so far forward that it will most definitely NOT be a Sportcar when you go to drive it hard round some bends (i.e. wanting to go very much straight on!!
![wink](/inc/images/wink.gif)
Edited by jellison on Tuesday 18th September 10:47
It all depends on the installation...
Go with a TKO and there is the additional cost/work of a clutch/bellhousing/flywheel/gear linkage/propshaft/exhaust etc.
Go with the uprated T5 and the additional cost/work is bolting the Cerbera transmission to the LS1 as everything else can be reused. A lot less than all of the above.
I'm assuming that the T5 upgrade and a new TKO are about the same cost.
If you want to keep the costs down and run typical Cerb power then the T5 route is by far the cheaper and it is not a dead end as the upgrade can be done quite easily.
You pays your money and takes your choice. Both are viable and will cope with uprated engines.
Go with a TKO and there is the additional cost/work of a clutch/bellhousing/flywheel/gear linkage/propshaft/exhaust etc.
Go with the uprated T5 and the additional cost/work is bolting the Cerbera transmission to the LS1 as everything else can be reused. A lot less than all of the above.
I'm assuming that the T5 upgrade and a new TKO are about the same cost.
If you want to keep the costs down and run typical Cerb power then the T5 route is by far the cheaper and it is not a dead end as the upgrade can be done quite easily.
You pays your money and takes your choice. Both are viable and will cope with uprated engines.
shpub said:
It all depends on the installation...
Go with a TKO and there is the additional cost/work of a clutch/bellhousing/flywheel/gear linkage/propshaft/exhaust etc.
Go with the uprated T5 and the additional cost/work is bolting the Cerbera transmission to the LS1 as everything else can be reused. A lot less than all of the above.
I'm assuming that the T5 upgrade and a new TKO are about the same cost.
If you want to keep the costs down and run typical Cerb power then the T5 route is by far the cheaper and it is not a dead end as the upgrade can be done quite easily.
You pays your money and takes your choice. Both are viable and will cope with uprated engines.
Yep - we are talking from the same hyme sheet. Big post LS1 power will need the uprated t5 internals, or TKO, should be find (hopefully?) without in std LS1 - if box is in very good condition when it goes in.Go with a TKO and there is the additional cost/work of a clutch/bellhousing/flywheel/gear linkage/propshaft/exhaust etc.
Go with the uprated T5 and the additional cost/work is bolting the Cerbera transmission to the LS1 as everything else can be reused. A lot less than all of the above.
I'm assuming that the T5 upgrade and a new TKO are about the same cost.
If you want to keep the costs down and run typical Cerb power then the T5 route is by far the cheaper and it is not a dead end as the upgrade can be done quite easily.
You pays your money and takes your choice. Both are viable and will cope with uprated engines.
Not sure this car has it engine or box though - diyCerb?
t56 is pointless - think I see why tvrolets tuscan SBC (iron but alloy heads) weighs so much now over a AJPV8 t5 /glebe boxed racer as that is t56 I seem to remember (they are HUGE).
Hi Jelly,
Thanks for the info, you raise some good points, I've got no intention of going the T5 route, I've stripped 5th gear in cossies with 350bhp, always thought they are on their limit in TVR's.
I don't want to move the engine position either if I can help it, so I think I should start looking for a TKO600.
Wheres a good place to get one in from the states? Seem expensive over here. Then I can start looking at prices.
Cheers,
Rich.
Thanks for the info, you raise some good points, I've got no intention of going the T5 route, I've stripped 5th gear in cossies with 350bhp, always thought they are on their limit in TVR's.
I don't want to move the engine position either if I can help it, so I think I should start looking for a TKO600.
Wheres a good place to get one in from the states? Seem expensive over here. Then I can start looking at prices.
Cheers,
Rich.
If you use the original box, you will still need a bell housing and all the associated stuff to go with it which no one has off the shelf. Yank engine Yank box, and all the stuff off the shelf. Not some mutant rubbish that someone has to bespoke. And if you bother to release some easy power will snap it all anyway. Or smoke the clutch and that smells horrible. ![smile](/inc/images/smile.gif)
![smile](/inc/images/smile.gif)
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