Camshaft and Injection

[b-b00gie]

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

[b-b00gie]

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...

[P11GT]

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

[b-b00gie]

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...

[P11GT]

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.

[b-b00gie]

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

[Anthony]

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?

[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

[b-b00gie]

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...

[P11GT]

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.

[slickkedar]

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!

[Anthony]

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

[Anthony]

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

[b-b00gie]

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...

[P11GT]

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