FD VS. V8 FD
12-25-2005, 07:37 AM
#11
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Join Date: May 2002
Location: Okinawa, Japan
Posts: 4,928
Originally Posted by Lionheart240' post='787676' date='Dec 18 2005, 04:31 PM
I haven't perfected launching yet, with my quite unstreetable OS Giken twin-plate w/ flywheel, so I didn't launch.
OS Giken twin plate unsprung hub clutches are streetable. It's the user that needs to learn how to drive it... not launch it. With the twin plate it's easy to launch. Rev to whatever RPM and dump the clutch. The transmission can handle the torque shock. There is no such thing as clutch slipping a twin plate...why would you need to?
For reference I have driven an OS Giken twin plate unsprung clutch for over 4 years in the FD...probably the same type as you (b type steel clutch cover ...should be TS2B part number) and have only had a problem driving it when breaking in the plates. THAT'S IT. My grandmother could drive my former FD. I know that Dragon, FDOkinawa, igy and two other friends of mine who all run/used to run the b type OS Giken twin plate clutch have said it's very streetable. Are you SURE your plates are broken in?
12-25-2005, 01:41 PM
#12
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Join Date: Aug 2003
Location: green brook, nj
Posts: 792
Originally Posted by Lionheart240' post='789838' date='Dec 25 2005, 01:27 AM
Eh..I met up with him later and he kept pointing out his loss of traction and lack of manual-transmission skills.
I don't doubt him, but I think he's still exaggerating.
I had met someone who's quite rotary-knowledgable, has quite the collection, and almost bought mine before I did, and he gave me props saying I have a really clean car that's pretty quick. His FD is non-seq, but he has it set up right at a solid 10psi. He couldn't figure out why I fuel-cut at or anything over 10psi either in late 2nd gear, or mid 3rd gear, etc.
Bleh. All I want is 10psi solid. Until I upgrade to Power FC, fuel-pump, FMIC, radiator, etc.
definatly a lack of ttraction...between the 4.10s(3.42 in most m6 ls1 cars) in the fd rear(i thikn its 4.10) and the couple of hundred pounds that it weighs less than my car and I can break them loose in 1st and 2nd at pretty much any rpm...and if i shift out of 2nd inot third near redline....it'll spin third...so....not an excuse for him, but I can see traction being a huge issue.
12-25-2005, 01:57 PM
#13
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Thread Starter
Join Date: Nov 2003
Location: Woodstock, Georgia
Posts: 583
I know. Loss of traction seems reasonable enough. I think in the same stroke however, and according to some knowledgable/experienced rotary-owners who had seen/riden/driven my car before I bought it, I'm workin' with a pretty nice FD myself. I couldn't ask for more.
Regarding the clutch. Essentially, of course it IS streetable, my driving it as a DD proves that much. It just took some getting used to. I can drive it fine now, and I think I've figured out that yeah, basically, to launch it, it needs to be revved to about 5K and just dropped. Any lower than that and it bogs, and any type of "slipping" doesn't help either. The idea of shakin' up the stock diff and suspension with 117k miles on it doesn't put much of a smile on my face, however.
What are your suggetion(s) for launching her right?
Regarding the clutch. Essentially, of course it IS streetable, my driving it as a DD proves that much. It just took some getting used to. I can drive it fine now, and I think I've figured out that yeah, basically, to launch it, it needs to be revved to about 5K and just dropped. Any lower than that and it bogs, and any type of "slipping" doesn't help either. The idea of shakin' up the stock diff and suspension with 117k miles on it doesn't put much of a smile on my face, however.
What are your suggetion(s) for launching her right?
12-25-2005, 10:53 PM
#15
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Join Date: May 2002
Location: Okinawa, Japan
Posts: 4,928
There's your answer right there. If you start to wheel hop...rev higher. 1ST thing is to get an aftermarket diff. Stock diff can take the torque of a V8...just not the torque shock. Was it Brian Stinson that used a V8 on his rx7/LS1 swap? He would run 10's and launch at 3000 rpms. When he went to 5000 rpms he blew the diff.
Also upgrade to aftermarket toe links/trailing arms. After that...well it's all driver.
01-10-2006, 10:33 AM
#19
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Join Date: Jan 2005
Location: Seattle, WA
Posts: 24
Not to hijack but a buddy of mine is putting a 351 in his FC in the next few months, the motor is being modified right now, longer duration cams, etc. So when thats done its going to be my T2 w/ light mods vs. his little v8 monster......
I will just get some video...
I will just get some video...
01-13-2006, 08:15 AM
#20
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Join Date: Dec 2001
Posts: 376
Originally Posted by Lionheart240' post='787676' date='Dec 18 2005, 02:31 AM
So then I was next to him in 2nd, but I hit fuel-cut about about 6,700RPM...lost about half a car thx to it.
I am a FC guys, so excuse the ignorance, but fuel cut at 6,700rpms?