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blownb310's e-series modification lists

90K views 146 replies 35 participants last post by  pjakesmith  
#1 · (Edited)
This should make your life easier blownb310. I'm going to sticky this for a few weeks.

I know there is only a small, but dedicated group of you B11 people out there, and good useable performance tips are far and few between. So here's a few ideas for your old Sentra or Pulsar. If you aren't worried about emission tests, and you have an '84 and up B11, you might want to dump that heavy restrictive iron exhaust manifold, with the pre-catalyst in it, for one from an '87 or '88 E16 or . These manifolds are shorter, lighter, and flow better than the earlier ones. You will need to replace [or modify] your front exhaust pipe however, as it will be too short for the later manifold. While your at it, why not take a die grinder and a carbide grinding bit, and port out the new manifold as well. Every little bit helps. Next, you might want to get rid of the troublesome "hopeless chokeless" electronic feedback carburetor, and replace it with a weber 32/36 progressive downdraft replacement, which uses an adapter, to mount. I replaced the stock cam with a Nissan Motorsport # 13020-25M00 "Euro" cam. It is a nice street cam that is O.E. in the European [non-emission] market. And if your crank angle sensor, [a.k.a. distributor] craps out, you can use the regular electronic ignition distributor assy. from an '82 or '83 B11/N12, and ditch the ECU completely. Then you can set the timing where you want it, and not have the ECU constantly changing the timing on you. Are we having fun yet? OK, how about improving the handling? My rear control arm bushings were shot, [they are really wishy-washy soft bushings in the first place]. Have you ever kicked the rear wheel of a B11 Sentra while it was on a jack, and saw the wheel wobble? Ah, the joys of owning a B11. Well, I took out the rear arms, and replaced the stock bushings with urethane bushings from Energy Suspensions. What's that? They don't offer them for an old Sentra? That's right. I bought a set for a Mustang GT, and had a friend cut them down in his lathe. Then, while reinstalling them, [with silicone grease] I added a set of aftmkt. camber adjusters to set the rear camber at .5 deg. neg both sides. I then bought a rear sway bar from Nissan Motorsport, [it was an Addco] and added that. Next was wheels and tires. I bought a really nice set of factory 15" '97 Altima alloy wheels. I mounted Bridgestone Potenza RE71 tires on them, 195/50-ZR15. These fit great on the front, but the rears rubbed a bit on the inside. I had to use ÂĽ" wheel spacers, along with some longer lug studs [Napa]. Then they needed just a bit more room on the inside where the inner tire sidewall, passes the lower control arm. I ground a bit of clearance into the lower control arm, and I was all set. Lastly, I replaced the front sway bar bushings with urethane ones, and I now have a really good handling car. Mine is a manual steering car, and the responce is quick. I've probably got a few more mods to tell about, but this post is getting long. I'll have to post more later. Does anyone have any good B11 performance tips to share? I know there is a small group of you out there who fool with the old Sentras!

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[How many of these will work on the B12?]

Five out of eight will work. Assuming you have an '87 B12 sedan or hatchback [not including the sport coupe hatch], with a carbureted E16, the Weber carb, the '82-'83 dist, the Euro-cam, and the ex. manifold porting will all help. You might want to opt. for the Pacesetter header, if they still make them. The last time I bought one was about three years ago, and I had to wait a few months for them to get enough orders to make another "batch" of them. On my B12, I did a cheap wheel upgrade by using a set of '87-'90 sport coupe alloy 14X5.5" wheels, with the black center caps. I ran 185/60-R14's on them. I read in the Nissan Motorsport cat that the sport coupes also had larger diameter sway bars too. That's another cheap upgrade for B12 people. As far as dealing with a throttle body injected B12, be it an E16i or a GA16i, these offer very little in the way of increasing performance in any big way. The throttle body injection is the major restriction here, in my opinion. That's why on my B12, I am replacing the GA16i, with a '93 GA16DE. Then you've got something to work with. Especially with the new turbo kit becoming available shortly. How about brakes? I used the front calipers and rotors from the station wagon version of the B12. They have vented rotors and larger [AD18V] calipers. It's a direct bolt-on, and another cheap junkyard priced upgrade. OK, anybody care to add anything to this potpourri of low dollar, early Sentra performance upgrades? I'd love to hear your experiences.
 
#133 ·
As we all know by now, it is not possible to edit old posts on these forums. That's very disappointing, but there it is. So I wanted to repost a few pics that got lost many pages ago on this thread. Back on page 3 of this thread [post 35 to be exact] here some pics that were lost years ago. I've also reposted the captions as they appeared on that post.

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This series of pictures, shows the modified '83 intake, opened up with a die grinder, to accept an '85 Nissan [720] Pickup truck carb, from a Z24 engine.

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You can see how much bigger the Z24 carb is, compared to the standard E16's. The orange baseplate gasket is from the Z24. The mounting holes were close enough, to oval out, to fit the E16's carb studs.

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Here it is on my feshly rebuilt [back in '95] .5mm over E16 engine.

Of course in racing you always crave more power. So I figured the stock intake might be holding me back. [This was before I bought the twin side drafts for the race car which are by far the best for power]. The idea was to make a manifold that had four individual runners from the plenum. If you look at the stock E-series intake you will see that each pair of cylinders draws from a single runner off of the plenum. So I searched different manifold catalogs looking for something that had similar intake port spacing to the E16. I found that the old Pinto 1.6 manifolds were really close. So I sourced an early Pinto intake and sawed off the Ford flange. I then traced an E16 intake gasket and machined out an aluminum flange. I then heli-arced it all together and ended up with this custom E16 manifold.

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How did this manifold work out? Not very well to be honest. It was an experiment that failed to make any more power. It turned exactly the same speed [at the drags] as with the stock intake. I think that the intake runner length was likely too short, but that's just a guess.
 
#134 ·
Thats a nice experiment you did there blownb310's!

I know how dissapointing it gets when all that work doesnt give good results.

I need to ask you a favour, do you know the correct lenght of the E16 conrods?
Maybe you have one lying around to measure?

Im in need of longer rods for my project but dont want to buy expensive aftarmarket ones.
Hopefully the E16 has longer rods that I can use.

Regards
Shane
 
#142 ·
Hi blown,
i'm just doubt in all sentra transmission swapping.
Does all the RS5F31A has same bolt pattern?
I`m using E15E from 87' B12, does it c/w 31A or 30A?
30A vs 31A bolt pattern?
sentra B14 using 31A tranny? (their starter motor facing the opposite direction)
Hope some 1 can clear this.....:)
Thank you
 
#143 ·
It's been a few years since I've messed with these older transaxles, but here's what I remember. The RS5F31A's do not all have the same bolt pattern. The E-series is different than the GA series. The [B11] 30A's from E-series will interchange with [B12] 31A's but only if from E-series. I've never tried to swap between the the [GA16i] B12 31A transaxles and the [GA16DE] B13's 31A transaxles. So I can't comment on those. Anyone ever swapped those?
 
#145 ·
wish we could get all the photos from the earlier posts could be reposted...there is alot of good info in this thread and pictures speak volumes!!
 
#147 ·
Thank You for the post. I love to read interesting post that has knowledge to impart. These kinds of post are very helpful to me to increase my knowledge on different facts about life and other matters. I hope to read more articles from you and in return I will post also my articles in the forum so that others can benefit from it. Keep up the good work!