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Ex-mod/nissan guru
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Discussion Starter #1
does anyone knows if i can interchange injector with another nissan TBI engine to get more gas ????

As the same question: Does anyone knows of a better injector that would fit my 87 Sentra TBI ??????????

thx
 

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I really doubt there are aftermarket injectors, but there is a duel Weber carb conversion kit.
 

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sentrastud said:
I think its possible for you to convert to a GA16DE or SR20DE intake manifold. This would be more worth yourwhile since it would give you Multiport fuel injection.

-Nick
I really doubt those parts are compatible because he has a e-series engine. I am positive about the weber kit but it is really hard to find because they don't make them anymore. The single carb kit would turn your engine into the older e16s engine, you DON'T want to have to deal with the "hopeless chokeless" Hitachi carb.

This sounds pesimistic but I don't suggest trying to mod the e-series engines past intake and exhaust or maybe a "euro" cam. It has been done before, but the engine was just not designed for big power, and all the work is not really worth it.
 

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Ex-mod/nissan guru
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Discussion Starter #7
as for the intake, well it wont work because E16 engines are heating the intake with the water from the head that pass in the intakemanifold than go to Carb(TBI) then return to manifold then to head.... anyway...

did somebody allready tried to add injectors to the manifold ??...

could be good with the appropriate electronic senquence !??
 

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Garage Sultan
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RiceBox said:


I really doubt those parts are compatible because he has a e-series engine.
oooops! I saw the TBI thing and I assumed GA series. Maybe i should read before i post... i guess i could also check what subforum im posting in... :rolleyes:

-Nick
 

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Crazy-Mart said:
as for the intake, well it wont work because E16 engines are heating the intake with the water from the head that pass in the intakemanifold than go to Carb(TBI) then return to manifold then to head.... anyway...

did somebody allready tried to add injectors to the manifold ??...

could be good with the appropriate electronic senquence !??
The only heating is from a duct the draws warm air from the exhaust manifold. DG Racing makes an intake for the e-series engine that removes this part.
 
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sentrastud said:
I think its possible for you to convert to a GA16DE or SR20DE intake manifold. This would be more worth yourwhile since it would give you Multiport fuel injection.

-Nick

so this is possible with the ga16i motor? how much work would this be
 

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sentrastud said:
Im not sure, I would really love to do it to my GA16i if it is in fact possible. More research is necessary... Ill start lookin into it.

-Nick
The heads are different so the manifold probably won't line up, but switching the head might make it possible.
 

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sentrastud said:
I was under the impression that a head swap with a GA16DE or SR20DE wasnt possible???

-Nick
I'm not sure if a headswap is possible either. I'm just hypothesising,
 

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Discussion Starter #15
wath i mean for the heating is that prestone is flowing inside the intake manifold... when you look at it closely... you can see 2 hose connected from the manifold to the tbi... those a prestone line !!!!.... after 2 head gasket i know ;)... prestone gets in from the pump side goes up in a canal falowing #1 intake tube then goes out below the carb.. goes in the carb by the hose.. the rest is the inverse to the #4 intake tube.. goes back in the back of the head just beside the thermostat housing... :)

Look at it closely youll see wath i ment !!:)
 

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If I remeber correctly the GA16DE engine does that too. Those guys splice the lines together and bypass the TB. You would have colder air going in the engine. Just don't do it in the winter because the throttle can freeze :eek:
 

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Sentra Specialist
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Hi Guys, I have been following this thread with interest, and I thought I would tie up a few loose ends. I hope you don't mind. There are no injector upgrades for an Electro-Injection [or TBI] unit. You can't put a GA16DE injection intake manifold on a GA16i [and certainly not an E16]. The GA16i head has no injector tip cutouts, for the direct port GA16DE intake, and the center studs are spaced differently. As for finding a twin side draft intake for an E16, they exist [I have one on my B11], but they were discontinued many years ago, and are very rare today. They do make great power, but it is all at high rpm, and really not the hot setup for a street car. They have very little low rpm power or torque. I agree with Ricebox's quote: [This sounds pesimistic but I don't suggest trying to mod the e-series engines past intake and exhaust or maybe a "euro" cam. It has been done before, but the engine was just not designed for big power, and all the work is not really worth it]. The reason I agree with him is because I have found that unless you basically build it as a race engine [raise the compression, get the twin carbs, header, cam, etc.] it won't have the power you all are looking for. And when you build it as a race engine [like I did, read about it at: http://www.b15sentra.net/forums/showthread.php?s=&threadid=19135&highlight=Rebello+Racing], it makes no sense to try to run it on the street, because you always need high octane race fuel for it. There is one exception: an E15T. If done right, you can make good streetable power with a turbo E15. Bottom line is, if you want to make good power and still buy cheap gas, you need an SR20DE. I hope I haven't offended anyone here. I have spent many years developing my E-engine combinations, and am still a fan of the mighty E16, but it does have its limitations.
 

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Ex-mod/nissan guru
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Discussion Starter #18
blownb310....

do you have some hp to give us on your all-race e16 engine you got ... have it been dinoed ??...

just to see the possible N/A possibilities here...
 

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Sentra Specialist
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Hi Marty, no I don't have any dyno readings, but I'm sure there is a formula to determine it. The important specs. you'd need are what the car weighs and how many mph in the quarter mile it ran. We have both of those specs. My B11 is stripped of all unecessary weight, and weighs 1680 lbs [but you must add my weight{170 lbs.} to that for true race weight]. The car went 96.9 mph in the 1/4 mile. Anyone got a program or power/speed calculator to figure this out? My guess is, that at the crank she makes about 150 hp. [more than twice the stock figure].
 

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Discussion Starter #20
well it is very good... you got some ass kicker out of that e16 engine there... sur would be better if it wasnt that bad on pinging... but you could probably get about 115 hp at the flywheel without that many mod and probably less pinging too... could kick ass too !! ;)
 
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