Camshaft and Injection

HELP

I NEEEEEED some racing camshafts and some new injection jets......

Can anybody give me some information on how to find that!!!??

Why do you need new injectors - are you planning on turbo'ing your motor? The stock 259cc injectors will cope with pretty much anything non-forced induction I would have though.

If you do need new ones, then you can get some 370cc ones from a 200SX SR20DET, and these will connect to your existing fuel rail as well I believe.

I *think* you'll have to get the ECU remapped for the new injectors though - something like a Unichip will do the job.

HELLO Anthony....

aaaaaaaaaaaaaahhhh I just read your signature, and it appeared to me that my car is on your homepage.... :o)

Well anyway i have spoke to the Danish Nissan Guru and he told me that he could chip my car and combined with new injectors and maybe a couple of new camshafts he could get about 170-180HP (7.800rpm) out of my engine..... I'd like that.... he he

I assume that's crank hp. If you're getting 170-180 at the wheels you'll need at least 370cc injectors. The DET ones are just a plug in like Anthony said. And you will need your ECU remapped or some other way to change the pulse width.

If you're talking about 170-180 at the crank you don't need new injetors the stockers are just fine.

You're going to need some higher compression and some very hot cams to get 170+hp at the wheels.

Hey G-Force

Thanx for the input...... :)

I will enlight him with yours and Anthonys input and then I will get back to you tomorrow with some more details! :)

To add 25-35 hp, you will probably need:

Header (extractor)
Remapped ECU
Cold Air Intake (filter in the fender well)
Good cams

You won't need different injectors.

He says I need

New ECU
New cams 280-285 dg cams
New injectors

It should work..... :p

Hey gurpal, you got mail!

anyway, ive got some fast road cams in and a unichip, but havent had the chip remapped for the cams just yet. There is a noticable difference at the bottom and mid range, but i was a little dissapointed, i was expecting more. Anyway, i might also look into new injectors, see what the tuning companies say around here. One of the problems are my filter, i think. It currently sits behind the battery and doesnt have a cold air feed. I might look into extending the pipe to relocate the filter in a cooler part of the engine bay, cos at the moment, it seems to be sucking up warm air.

I'll ask around, see what i find out about the injectors and let you know.

i just rang a company here in the UK called Norris Design, they say i will only need the injectors if im having fueling problems with the new cams, but until i get it remapped, i dont know, aaaaahhhhhh vicious cirle kinda thing going on. The stock injectors should be able to handle a bit more horse so i dont think i'll need them. They have a set of 4, second hand which will cost me £100 inc. postage

yep got the mail....thanx....
ps have you tried cold air feed like I have for my K&N,,,,,,,,









:flash: :flash:

Your standard injectors should handle up to 170HP

But try remapping your ECU then you will get much more out of your cams.....

im gonna try getting a pipe bent to go further around and below in the engine bay to mount the flter on, to get cold air, but not too low, dont wanna hydraulic the engine. I'll have a proper look when the weathers a bit nicer here.

Originally posted by TeamNissan
He says I need

New ECU
New cams 280-285 dg cams
New injectors

It should work..... :p

You absolutely do not need new injectors. We have someone here in The States putting 170 hp to the wheels with the stock 259cc injectors. He has not run out of injector either. This is verified by JWT since they he has been doing cam testing for them.

Also, you will not gain 25-25 hp from cams and a ECU remap, although 20 is on the fringe of what is possible. There is no way for you to make 170 bhp (roughly 145 to the wheels) without a header (extractor). Chances are you will need a true cold air intake as well, not just a tube running cold air to the filter.

Originally posted by P11GT
im gonna try getting a pipe bent to go further around and below in the engine bay to mount the flter on, to get cold air, but not too low, dont wanna hydraulic the engine. I'll have a proper look when the weathers a bit nicer here.


Go for the Cold Air Intake!!!

...actually the cold air effect is minimal. The added horsepower is actually from the intake being longer and funnelling the air in at a higher speed. ;)

boogie...... where is your filter located then? i see that the pipe goes down into the hole where the resevior would normally be. The main problem is that there isnt anywhere in the UK that sells the CAI and its a pian the ship over. How much am i looking at anyway?

I should be able to get the same diameter piping to extend it, would this has the same funnelling effect? or does it need to be at different diameters ie smaller at the filter and bigger at the intake manifold, or vice verser?

Well the piping is all 3"

the intake manifold is about 2.75" so a 2.75" to 3" coupler is used (the red rubber piece). I'm not sure of the size of your MAF but you will need an appropriate coupler there too; same thing on the other side of the MAF except I used an AEM By pass valve (the foam looking thing)

my filter is between the fender and front bumper...


I think I paid around $180 or 200 for the CAI from Hot Shot

BTW.. is there anywhere in your neighborhood where they do turbo installs??

If so they can make you a CAI and give you all the appropriate couplers. Its the same process as making the piping for a turbo/intercooler setup... ;)

i think ive got somewhere in mind that would make it.

ive just had a quick look on the Hotshot site, it does state that you need a smaller battery, so how did you get away with using your stock? this would be ideal, less expense.

there is also 4 part numbers listed for the hotshot CAI, which one is yours? main reason being that my engine bay setup is exactly like yours

I didnt need a smaller battery.. not sure why they said you do.

It is a tight fit though, but even if the battery was in the way (wouldnt be by much) you could skip getting a new one and just drill 3 new holes in your battery tray to move it over a bit.


I have a 2000 G20 forget the part number... 4004 i think??


anyhow.. what really matters (the difference between the model numbers) is the size of your MAF opening...

well really, all i would need to do is measure the diameter of the coupling that comes from the MAF sensor, from the picture above, its bolted to the MAF sensor and has a 3" diameter bore, which the HKS filter clamps on to. i'll email hotshot see what they say.

Ok.. tell them you need the piping for a SR20DE but that your MAF is three inches

so you will need...

intake pipe
cold air extension
2.75" to 3" coupler
3" to 3" coupler (2 of these, 1 for each side of the MAF)
filter
MAF adapter

I know someone that is going over to the states in late September, so I was thinking about getting him to bring me back a CAI and a set of underdrive pulleys (2 pulley set). I guess the two of them together should be about $400 or so (£250).

I get some heat soak problems with my K&N filter once it starts getting hot outside. A CAI would get rid of this problem, and would give me some extra ummmpphh as well.

How accurate is Hotshot's claim of a 8bhp and 10lb/ft increase just from a CAI? Sounds a bit optimistic to me...

Also, is there any real difference between a Place Racing CAI and a Hotshot CAI? Does one of them fit the Primera/G20 better or give better performance?

Oh, and one last thing - how low does the filter for the CAI sit in the wheel well/bumper gap? Does anyone have a picture or something?

I've checked the area where the filter suck air from after driving in the usual British downpour, and it was almost bone dry. Unless the filter sits right at the bottom of that gap, I doubt I'm at too much risk from hydrolock unless I decide to use my Primera as a submarine ;)

the PR and HS design is basically the same and will give you the same performance...


You can bet your bottom dollar (errr pound sterling) that you'll see 7 or 8 hp gain on the dyno w/ 10 ft/lbs of torque, run after run...

boogie- im having real problems trying to get any responce from hotshot, is there anyone else who can supply a CAI and possibly also get me a ABV at the sametime? the valve is only $38 but a place called Options over your end said that it'll end up costing more than double with shipping and tax.

Originally posted by Anthony
Oh, and one last thing - how low does the filter for the CAI sit in the wheel well/bumper gap? Does anyone have a picture or something?

I've checked the area where the filter suck air from after driving in the usual British downpour, and it was almost bone dry. Unless the filter sits right at the bottom of that gap, I doubt I'm at too much risk from hydrolock unless I decide to use my Primera as a submarine ;)

Why take any risk?? Just get a AEM Bypass valve, cost you bout 40 bucks, and then you can use your submarine! :)

I've read some bad things about the AEB bypass valve, hence I don't want one.

I heard that they don't really work unless the filter sucks in a fairly large amount of water, and worse still, that they are poorly made and can break and jam the throttle open. Over on the SR20DE forum, there has been a couple of people that have had their AEB bypass valves break and cause the throttle to jam wide open.

Jammed throttles have a nasty habit of resulting in crashed cars. That is not cool :(

Anyway, I doubt I'll be using my Primera as a submarine.... I don't have the optional periscope installed :D

Actually the BPV have been redesigned to fix that issue.

Of course it only works when you suck in a huge amount of water. The extra force required to lift water is what makes the valve open. I dont see how not using a BPV would be any better?? If anything the BPV is better than nothing...


P11GT if you want I can ship you the CAI and BPV... with shipping it should be around $250 or 260 US for everything. email me if you're interested...

Boogie..... is that $260 US dollars for the lot, no hidden charges:D how will i be able to pay you from where i am?

oh, another thing, does the CAI inlet pipe have two hose connections like my original has? see picture, theyre arrowed

Originally posted by P11GT
oh, another thing, does the CAI inlet pipe have two hose connections like my original has? see picture, theyre arrowed

Yes

Originally posted by b-b00gie
Actually the BPV have been redesigned to fix that issue.
Thats OK then... last time I read anything about them they were still falling apart and jamming in the throttle body, but if they've fixed that, then thats cool :cool:

CAI can be custom made in UK.....Anthony/Kevin........place in Scotland
Greer Sport Engineering (01505 506000) can custom make a CAI to fit the Primeras... they mod Cossies and Scoobies so should be good.....
they will let me know on Monday wether they can fit the Intercooler look CAI on the P11s approx price he said was £200+ but will know for sure on Mon.......Kev U're in Scotland have U heard of these guys

not me man! its neils whos in Bonnieland, im in Newcastle. Have you got this months FastCar Guide to tuning? on page 231 bottom left corner is a FMIS CAI system which looks like a front mounted intercooler, give them a ring, see what they say (01472 753711)

You taking the pish wee man? :D

http://www.nissanklubben.dk/galleri/g20010825/thumbs/Image29.jpg

Who's car is this im sure he has posted here b4? How much hp did your car make?

hi hi where did you get that pic......???? :alien2: :confused:

It only made 145BHp and 193NM

But in a couple of month I'm going again with the changes I have made, and he promised me 190BHp :D

sorry m8....got a bit :confused: ...anyway I have the Fast car guide...plenty of good stuff in there......

I have called the number U show above...apparently 10mins after someone called Kevin had just called him........:rolleyes: wonder who that is.....heh he......and as U probably know they only do em for for those nasty Hondas...damn.....
R U tryin his other option..Ractive

hehehe....
ragt.... good news is that he can import most tuning gear from the states, as he has contacts over there and can buy most things off them. The other thing he said he could get is a Stillen header, but i dont know how it compares to the Hotshot. Thats my next thread.

uuuuuuuhhhhh

If he can get anything, I would REALLY REALLY REALLY like to have a price on an EFI EURO-1 :D

What mods do you have on your can TeamNissan, did it start out as a 2.0 130 hp ? like my SRi. Also how much did they charge you for your GT exhaust manifold/down pipe.

re to CAI or not to CAI.........:confused:
would there be any improvement, if the cone remains where it is and the black rubber pipe section be changed over to a metal pipe...:rolleyes:

if your thinking of doing something like the reactive filter and cold air intake pipe, it should work, that is if you can find something that will cover the whole filter. The reactive setup also acts as a ram air effect when youre driving you see. That will benefit the engine more.

Originally posted by ragt20
re to CAI or not to CAI.........:confused:
would there be any improvement, if the cone remains where it is and the black rubber pipe section be changed over to a metal pipe...:rolleyes:
It will probably make a very small difference, but probably nothing of any note. 1bhp if you are very lucky. The main improvements from the CAI come from firstly the increased pipe length, and secondly the fact that it is sucking in colder, denser air.

Originally posted by Neil82
What mods do you have on your can TeamNissan, did it start out as a 2.0 130 hp ? like my SRi. Also how much did they charge you for your GT exhaust manifold/down pipe.





It is a 2.0 130HP like yours.... :)

I only gave 310 USD for GT manifold GT Downpipe and GT ECU - GOOOOD connection :frog:

Originally posted by P10DET


You absolutely do not need new injectors. We have someone here in The States putting 170 hp to the wheels with the stock 259cc injectors. He has not run out of injector either. This is verified by JWT since they he has been doing cam testing for them.

Also, you will not gain 25-25 hp from cams and a ECU remap, although 20 is on the fringe of what is possible. There is no way for you to make 170 bhp (roughly 145 to the wheels) without a header (extractor). Chances are you will need a true cold air intake as well, not just a tube running cold air to the filter.


This is my first post since the tragedy at the World Trade Centre, so let me just say that I despise the act and that I feel with all the people who has been affected by this catastrophe

Now we have the finished project and it looks like this.......

EFI EURO-1
Racing exhaust manifold
2,5" exhaust
285 degrees cams
"injection house" don't know the english word

Any input about other ideas will be nice

have you got your car dyno'd yet? mines in the garage toay getting the unichip remapped, so i'll find out what it is sometime tomorow.

Nope not yet, but i got the Dyno chart from the 1.1 bar P10 we made!! :o)

He has been on the dyno with the new config (1.4 bar) but i don't got the map yet!

Nice numbers!

Congratulations.

What turbo are you running with that? It's strange how the power drops off after 6,000 rpm. I've not seen that with a turbo engine before.

It's a STANDARD (yes standard) japanese SR20DE engine with turbo and intercooler that we have modified a little bit. :frog:

Originally posted by TeamNissan
It's a STANDARD (yes standard) japanese SR20DE engine with turbo and intercooler that we have modified a little bit. :frog:


What turbo? What have you done to it?

Is that hp to the crankshaft or hp to the wheels?