S2000 STR prep resource
Joined: Jul 2009
Posts: 2,048
Likes: 1
Edited the original post.
It was about 1/3 tank of fuel at that weight.
It started out with ~2/3 and 2740lbs. We took the 40lbs of fuel out to get it to auto-x fuel levels. I'm afraid to run the car with much less fuel than that due to starve. Isn't worth frying my fuel pump over a few lbs...
It was about 1/3 tank of fuel at that weight.
It started out with ~2/3 and 2740lbs. We took the 40lbs of fuel out to get it to auto-x fuel levels. I'm afraid to run the car with much less fuel than that due to starve. Isn't worth frying my fuel pump over a few lbs...
Registered User
Joined: Sep 2005
Posts: 1,866
Likes: 2
Just for all the of the weight people out there...
I had my car weighed today, came out to almost exactly 2700 lbs.
Its a very low prep '06.
-TR Motorports 17x9
-255 RS3s with a lot of tread
-KW Clubsports
-HFC
-Greddy Ti-C exhaust
-No rear bar
-Saner front bar
-1/3 tank of fuel
-Stock intake and header
-Stock seats
I had my car weighed today, came out to almost exactly 2700 lbs.
Its a very low prep '06.
-TR Motorports 17x9
-255 RS3s with a lot of tread
-KW Clubsports
-HFC
-Greddy Ti-C exhaust
-No rear bar
-Saner front bar
-1/3 tank of fuel
-Stock intake and header
-Stock seats
-Marc
Registered User
Joined: Oct 2000
Posts: 819
Likes: 5
From: Seattle, WA
I posted this in one of the other threads but will copy it here, since not everyone pays attention to all threads 
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
Registered User
Joined: Jul 2009
Posts: 1,373
Likes: 0
I've been using the Cusco RS (1.5way at 80% lockup) in my BSP Z this year with satisfactory results. It does NOT operate as smoothly the OS, though. It is quite obtrusive in very low speed stuff (putting around in grid, etc). However, it works rather seamlessly once on course. My car makes 260-265 wtq for reference.
Joined: Mar 2002
Posts: 6,014
Likes: 1
From: Seattle, WA
I assume everyone's seen this article?
http://grassrootsmotorsports.com/articles/whats-diff/
Unfortunately, the OS Giken was the clear winner of that comparison.
http://grassrootsmotorsports.com/articles/whats-diff/
Unfortunately, the OS Giken was the clear winner of that comparison.
Joined: Jul 2009
Posts: 2,048
Likes: 1
Thanks for sharing ... Were there any other S2000s weighed on that scale along with you? Reason I ask, its hard to compare cars on different scales, different times, etc. I have seen 200lbs differences on my car, some on the same scales (scca portable scales). With most the arguments involving 50-100 lb differences and the 39lb difference for the CRs, i feel the considered weights need to have an exact fuel/fluid measurement and specifics on all mods and done on the same scales at the same time to eliminate as many variables as possible just as James and Stephen have done. Just my .02
-Marc
-Marc
Joined: May 2009
Posts: 154
Likes: 0
From: Detroit, MI
I posted this in one of the other threads but will copy it here, since not everyone pays attention to all threads
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
Joined: Feb 2005
Posts: 401
Likes: 0
From: Pewaukee, WI
Originally Posted by Banannie' timestamp='1311710810' post='20817660
I posted this in one of the other threads but will copy it here, since not everyone pays attention to all threads
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
Registered User
Joined: Nov 2008
Posts: 82
Likes: 0
Originally Posted by angryfist' timestamp='1311790127' post='20821083
[quote name='Banannie' timestamp='1311710810' post='20817660']
I posted this in one of the other threads but will copy it here, since not everyone pays attention to all threads
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
I posted this in one of the other threads but will copy it here, since not everyone pays attention to all threads
The OS Giken diff in my car failed last weekend.
So far we've had three diffs fail in three cars, three installers, two of which were OS Giken dealers - I'm thinking we've taken most (albeit not all) of the install risk out of the equation. One had spacers, two did not, so spacers aren't a magical cure either. All three from different OS Giken shipments, so it wasn't just one bad batch.
My car likely has the most power of the three, but nothing near what some track / drift cars make, so it shouldn't be that. I probably was harder on mine than Des was - I typically had codrivers and ran it at more events. Still went out in 2 months...
And I've told Colin this - my car made exactly the same noises his did (occasional thunk / clunk on tight turns in parking lots, etc) until it catastrophically failed on Max's Saturday PM runs last weekend. I only got four runs in the car before it broke, and the car just got progressively worse. The diff is essentially locked now.
The stock Torsen is going back in the car for now, until this gets sorted out. Now we've got three failures, I'm hopeful it's not a design issue... Either way, until we can confirm it's NOT, I'm not willing to spend $$ on a replacement part that will only last 2 months. I want to give OS Giken the benefit of the doubt for now, but I'm unfortunately only slightly optimistic.
Has anyone tried a different diff other than the OS Giken?
[/quote]
I installed mine earlier this year and put at least 50 to 60 runs on it. It does make clunking noise on sharp slow turn like in parking lots. According to recent post, my Giken would not see September. I got 3 event and 1 autox school in August, expect close to another fifty runs. Also not very gentle with it, I do launch the poop out of it.
Might just put the spacers on just for piece of mind until this gets sorted out. I did use the Giken juice since installed and changed it after two events. I was gonna changed it again after seasons over, might changed it earlier to see if any particular in there.
I did give the service manual to my installer and he did say it was very helpful. Installed all new bearings and shaft collar in the process.
