Project Thread LS 400 Single Turbo

[JustenGT8]

When you say locker? you mean like a tru-track? they do have a good rep i'll admit.

What i don't like about torsens for a performance car is their torque 'sensing' nature. As soon as one rear wheel 'unloads' you lose your LSD and have a single spinner again. For a luxo barge street car this isn't an issue and a low service LSD is a gantastic piece of engineering.

For a firmly sprung street and/or track car, this is a major issue as it's very likely in hard cornering (particularly over a bumpy road) that a wheel will unload a fraction. The torsen gives a very inconsistent feel under these circumstances.

A good clutch pack LSD is rock solid reliable in it's power delivery and makes for a much more confidence inspiring ride when punting hard at speed.

Whatever you are happy with i guess.

 

[spf_lexus]

I am planning to pick up a KAAZ 2-way soon. I have heard these clutch type LSD's will "click" as you take corners. Can anyone explain/elaboratre on this? Im taking my 1 wheel wonder to the track on the 17th of next month. Me and 8 friends are renting out a track for the whole day so I will get a better feel for my setup's weaknesses. I plan to record a couple lap times so I can do a before/after with the KAAZ installed.

 

[JustenGT8]

Click? dunno. Depending how tight they are they will cause the inside wheel to skip about a bit during slow tight corners, like parking.

A 2 way is pretty aggressive for street? Dorifto types like it as it stays locked during lift off as well. A 1.5 way would be my recommendation as they loosen up when you lift off the throttle and create alot less understeer.

 

[cyberdiamond]

Yeah 1.5 way for the circuit (or street).

I will get a ATS / Carbonetics carbon lsd for mine, the other good one is the OS Giken.

With your case machined to use the Supra diff there is now so many different options.

 

[Arnout]

I doubt fasteddie will EVER lift a wheel on that 1800 kg heavy LS400

 

[JustenGT8]

I doubt fasteddie will EVER lift a wheel on that 1800 kg heavy LS400

LOL he needs to drive faster then

If you reckon it's strong enough then i've said a luxo barge will be fine

 

[Fasteddie]

I doubt fasteddie will EVER lift a wheel on that 1800 kg heavy LS400

Who cares about lifting a wheel ?...i am not a dog
Al we want is spinning tires...

He Arnout, did you order those 264 cams yet ?

 

[stevechumo]

Could you feel the difference between the stock 3.94 and the more tame 3.60ish? final drive?

I had everything done together from tuning, new tranny, LSD, bigger tires; therefore, I'm not sure exactly what causes the RPM going a little higher.

Maybe my power isn't that much as Justen, but the Supra MK IV TT LSD works great for me. It really grips.

I don't recommend using 2 way LSD. My friend has a TRD 2 way LSD (I believe it's 2 way) and it's not very friendly and it makes noise.

 

[hungryforinfo]

[URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4360.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4360.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4359.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4359.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4358.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4358.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4357.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4357.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4356.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4356.jpg[/URL]

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[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4353.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4353.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4351.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_4351.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_2824.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_2824.jpg[/URL]

[IMG][URL="http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_2823.jpg%5B/IMG%5D"]http://i164.photobucket.com/albums/u12/bj_on_roids/Arnout%20Van%20Der%20Kamp%20Single%20Turbo%20LS400/IMG_2823.jpg[/URL]

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[hungryforinfo]

 

[hungryforinfo]

 

[hungryforinfo]

http://i164.photobucket.com/albums/...er Kamp Single Turbo LS400/IMG_4360.jpg[/IMG]

 

[hungryforinfo]

Hopefully Arnout can come and explain what he was up to. Because it looks like some pretty cool custom work inside that diff.

 

[Fasteddie]

...here the dyno results from June...at the wheels that is...

 

[stevechumo]

Impressive number! Is the graph slowly going up because of the tuner who took it easy at low RPM or because of the turbo lag?

 

[XR8tt]

If load was put on engine it would spool much earlier..
I would guess it's a low load dyno ???
A hi stall converter can have same results or multiply the reading...

 

[Fasteddie]

...this is the same turbo as before (T88-34D, 477 rwhp@ 4500rpm) but with new manifold....
Also the automatic was changed for the Boostlogic with HIGH stall converter, but i dont know how much that would effect the rwhp/torque output numbers...
The loss of torque below 4500 rpm is significant. Full benefit of the new manifold and much higher rwhp levels might come from changing the cams....

 

[Fasteddie]

...previous dyno:

 

[Fasteddie]

.............

 

[hungryforinfo]

That is pretty impressive.

So you think the plenum made a big difference?