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The trick thing to do here is buy the Nismo dif for the Non LSD cars for around $1000 (From me of course) and then buy those 1.8 tranny for a dime a dozen. Yes, they should be as strong, and have the better gear ratios. Then if you blow them up, go buy another cheapo 1.8 and swap the dif and keep going.
Greg, do you mean that the 1.8 trannies I see around are actually non-lsd RS5F70 (A I suppose instead of V) ?
this thread is way too long, please edit it down.
From what im reading, the 1.8 tranny would install just like the p11/b15 tranny - well it is a b15 tranny. But Im still confused and my eyes hurt from reading page after page. Is it just cheaper, or possibly easier as well?
NO sh*t.. i'm tired reading 8 million pages. . seperated the 1st thread since this is what it is how to fit not a discussion like what if modifications...... will my mustang tranmission fit my sr20block..
Does anyone know of a good way to get the insert mentioned above out? Advice would be GREATLY appreciated. TIA
You would want to use a "Slide hammer" from Auto Zone or one of your friendly neighborhood auto parts store. psst.. Auto Zone rents them out for a fee that is %100 refundable , but out of the five Auto Zones in my area I have only meet one counter help person that actually knows what a "Slide hammer" is. heh..
I'll be doing this [cable to hydro conversion] soon with a pedal/clutch master out of a G20 or possibly an altima. I'm surprised no one else has mentioned it in this thread.
I consideried this after I broke two cables and I saw this thread and learned that a P11/B15 trans fits all sr20s, but time, money, and the fact that my car is my dd have kept it a pipe dream, so I never mentioned it (at least I don't think I have). I havent done any research into it at all except for I looked up the cost of parts, and that was a long time ago and I lost the paper I wrote it down on.
I will soon have the time, money, and a new car as my daily, so if I don't sell my SE for a down payment, I'm going for the whole shebang. B15/ P11 trans with Nismo LSD and hydro clutch. Oh and It'll be attached to a DET. now about passing emissions...Anyway, get ready for lots of stupid calls from me again, Greg.
I'm pretty wary of the particulars *** such as how to mount the different pedal assy (is it bolt on or do I need to weld custom brackets on the firewall? can I buy a bolt on bracket from the dealer?), pedal positioning, and where the master cyl would go (there's basically no room between the firewall and the wheel well). I haven't seen under the hood of a P11/ b15 in a long time, so I don't know all that is involved. If anyone has any insight to this, please share.
Of course its possible, but how much customization is necessary and is it worth it? That is the question. IMO anything is better than a sticky feeling, 80lb pedal pressure clutch and replacing a cable every year. stupid aftermarket clutches
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also, what I get from this thread (basically what Vogel has implied) is that the trans of a QG18, a B15 SE w/o pp, and a G20 are the same. And the trans from a G20t and B15 SE w/pp are the same (disregarding gear ratios) and that all of these mount up to SR20s (and therefore QG18s too).
so the splines and mount points are the same, but input shafts on the newer trannies have a deeper chamfer (which would require a different pilot bushing on any other trans) but since there are two bearings on the interior of the trans to resist thrust in both directions a pilot bushing is unnecessary?
Also, casings of the QG18 trannies are just as strong as the 2000 and up P11/B15pp trannies. the only major diference is the differential part of the casing.
all of these trannies (lsd and non-lsd) have aftermarket LSDs available, both from nismo and jgy/fpg (from what I recall Quaife only makes LSDs to replace the B14/P10 vlsd)
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about the sensor wiring... So all you need to do is cut the old plug from the car's harness and solder the two clipped wires (orientation be damned) to the P11/B15 trans switch pins and fill the rest of the plug socket with RTV for water resistance?
Finally, are an uncanny number of paragraphs needed to keep things clear when posting in this thread?
It would seem, based on the part number (RS5F70A) that the QG tranny is the same. Don't know about the bellhousing, though; you may need one of those from an SR car. For a turbo car, I'd much rather have a QG tranny gear ratio set.
Hydro clutches would likely be useful in a swap. I'd look really hard at the clutch stuff from a '99 G20, which had the RS5F32 transmission with a hydro clutch. At least find one to look at really hard.
I wish Quaiffe still made *any* SE-R differential.
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-=|JP|=-
"I can tell you all day long that my dick is 25% stiffer than yours, but without 'hard' numbers or independent testing, who's going to know?"
It would seem, based on the part number (RS5F70A) that the QG tranny is the same. Don't know about the bellhousing, though; you may need one of those from an SR car. For a turbo car, I'd much rather have a QG tranny gear ratio set.
Same tranny, different bellhousing is correct. At least from looking at the FSM for a 2000 B15.
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Monty <--- Another victim of the go-fast crack pipe....
Well, I did finally hear that the QG bellhousing does look to be different. Someone took the metal plate to the junkyard and none of the holes lined up. Maybe I'm not 100% sure on that. Most of the internals seem to be the same between QG and P11 w/o LSD. I thought I had looked at everything, but maybe I overlooked the bell housing. The other half shares part #s, so maybe just bellhousings could be swapped. BTW, the rear housing is the same on the B15 2.0 w/o LSD.
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Greg V Check out the new website! www.GSpec.com
The clutch pedal brackets on the hydrauclic clutch MC/pedal assembly should be identical to the cable assembly...its a matter of swapping them out and praying you have room for the MC on the other side of the fire wall. This is the install from an auto to manual P11 conversion, and yes its a VERY tight fit.
thanks for posting the link Yahnoza nice writeup.
I have pretty much no knowledge of hydro clutch systems, so I have a few ?'s
those are some funky hardlines coming out of that second unit thing (guessing one is coming from the pedal assy MC and one goes to the fitting you have your SS line hooked up to), what is it for anyway? is it another booster cyl?.
What is the rubber line coming out of the pedal MC? guessing its for a fluid reservoir, but where is the reservoir at?
so where did you get the ss line? did you make it, and if so, whre did you get the parts and what fittings do you need for it (guessing AN but what size)? is the stock line just a hard rubber line like the brakes?
thanks Greg, McCoy, and Dren for noting the difference on the trannies. gear ratios of the QG trans might be optimal, but you are talking about another 500 just to get those ratios!
800 for a vlsd p11/B15 plus nismo lsd. or 500 for non lsd p11/B15 plus 1000 for nismo lsd. that right there is about as much as buying a DET
800 for a vlsd p11/B15 plus nismo lsd. or 500 for non lsd p11/B15 plus 1000 for nismo lsd. that right there is about as much as buying a DET
You can't add a nismo LSD to a vlsd P11/B15 from my understanding... your only option is the non-vlsd P11/B15 with the $1000 LSD.
I've been using my B13 tranny with a Nismo LSD for the past year on the turboed sentra. I'm afraid that the tranny might not withstand the T28 upgrade with 225 hoosiers that I'm going to be adding this year for track days though. I might be looking for a non-locking B15 tranny... if the tranny can't hold the power, what use is the turbo
those are some funky hardlines coming out of that second unit thing (guessing one is coming from the pedal assy MC and one goes to the fitting you have your SS line hooked up to), what is it for anyway? is it another booster cyl?.
What is the rubber line coming out of the pedal MC? guessing its for a fluid reservoir, but where is the reservoir at?
so where did you get the ss line? did you make it, and if so, whre did you get the parts and what fittings do you need for it (guessing AN but what size)? is the stock line just a hard rubber line like the brakes?
The block the hardline goes to where the ss line comes out is called the *dampner* Not too sure what it does, but I got all the parts from a g20.net member that got them from a junked manual P11. The ss line I had custom made, and the rubber hose goes to the clutch fluid tank.
I might have a spare SS clutch line, I dont recall the sizes of the threads, but ill check for ya.
The block the hardline goes to where the ss line comes out is called the *dampner* Not too sure what it does, but I got all the parts from a g20.net member that got them from a junked manual P11. The ss line I had custom made, and the rubber hose goes to the clutch fluid tank.
I might have a spare SS clutch line, I dont recall the sizes of the threads, but ill check for ya.
so where is the reservoir? I didn't see it in the pic.
The clutch pedal brackets on the hydrauclic clutch MC/pedal assembly should be identical to the cable assembly...its a matter of swapping them out and praying you have room for the MC on the other side of the fire wall. This is the install from an auto to manual P11 conversion, and yes its a VERY tight fit.
Yeah Pat it also seems like the B14 master cylinder is totally different than the P11's. After looking at your pics, an 02 P11 FSM, and my B14 it looks completely doable. The B15 one on the other hand is a huge piece looking similar to the size of our brake master cylinder. It does not look like it would work. It is quite amazing that Nissan varied the design so greatly between the two chassis (B15 versus P11) for the same years of the chassis, especially since the tranny's and slave cylinders look the same.
The only thing that I would have to move is my cruise control module and that might just be for the install. It may completely clear after the master cylinder is installed. The reservoir is surely flexibly mounted as needed where ever, so long as its above it.
I looked into doing this last year but got discouraged with the B15 master cylinder, assuming the P11 was the same. What a great thing to discover! Thanks for posting this Pat.
Hey by the way don't you lighten B15 flywheels? Thought I saw one in Texas that Waterman was showing me. Couldn't find anything about it yesterday on G20.net or your website. I have an idea for you if so....
and then buy those 1.8 tranny for a dime a dozen. Yes, they should be as strong, and have the better gear ratios. Then if you blow them up, go buy another cheapo 1.8 and swap the dif and keep going.
. seperated the 1st thread since this is what it is how to fit not a discussion like what if modifications...... will my mustang tranmission fit my sr20block.. 
