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-35 dry shot at 17psi-

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jérôme

20+ Year Contributor
114
0
Feb 3, 2003
Bay Area, California
Hey, im looking into a little more top end, now that i have a bigger turbo (mods are 18g, 550, exhaust, 17psi...). So nitrous or cams are on my wishlist. My question is whether it is safe/reliable/okay to run a 35 dry shot on my setup. if so, will i need to retard my timing or add fuel with such a small shot?
main reason im asking is because i hear that wet kits are better for turbo applications, but i dont have the bucks for that nor do i think its worth it for such a small shot.
thanks for all your help,
jerome
 
why does nobody put nitrous in their profiles?(the people who say i have a this or that kit...) :confused:
 
no idea on times--
top end is nice, i was just trying to find a way to benefit from 18g's potential the most, are cams>nitrous? i would be going with 264's if anything.
 
If your internals are built, then you are probably safe running a 35 wet shot. The greater the boost, the greater the increase in power from a same size shot. ie you get 35 hp or so on a 35 shot when NA. When boosting, the power same 35 shot will give more power. Dont ask me why, I have just read it more than a few times so I think it is true.

Dry systems rely on you ECU and various sensors to read that they need to inject more fuel. A wet system injects fuel with the NO2 so you dont have to hope the computer works. A wet system is usually to be found for the same price as a dry system. Ebay wet systems that need a little tinkering and about $50 to $100 in additional parts are going for as low as $175-$250 (plus shipping). I am running a 60ish shot on a NA subaru but intend to back it down once the supercharger is installed.

When you start actually using the stuff, start with a newly filled bottle (or topped off bottle) and the smallest of jets (usually a .018) and see how the engine reacts. This is a 18 hp shot but since you are turboed, it may give more bank than a NA gets.

Good Luck. The stuff is addictive.
 
so my internals being stock, you recommend an 18 shot? that seems like such a small shot that dry or wet wouldn't matter, right?
 
an 18 shot will still yield large hp numbers. Up in the 45-50 hp gain on a turbo car, potentially more. Part of the reason nitrous makes more than "typical" power on turbo cars is because extra air is already being forced into the engine through boost, then your not only assing even more oxygen, but your cooling the charge immensely on top of it yielding even better gains. On our t3 turbo civic, a 25 shot yielded just over 75hp at the wheels putting it around the 375 mark at 10lbs of boost on a 1.6. Hope that helps explain a little for you :thumb:
 
I recommended the 18 shot to start with. As the previous poster stated, an small stated shot yielded them 75 horses. Just imagine if you shot a 35 shot and it yielded 125 instead! Whoops!. It takes about two minutes to change jets with two open ended wrenches so it is no hassle.
 
I seriously doubt you will feel any noticable increase from a wet 18 shot. Yes, the power of the shot is amplified by a turbo, but it's not like you are going to get 90 whp from an 18 or even a 35 shot. When I had my TD05H 20g, I ran a 75 shot with stock internals with no problem, and that still was not that big of a kick in the ass. I plan on running a 50 shot at the track with my fp3052 @ 20psi.
 
1990EclipseGSX said:
I seriously doubt you will feel any noticable increase from a wet 18 shot. Yes, the power of the shot is amplified by a turbo, but it's not like you are going to get 90 whp from an 18 or even a 35 shot. When I had my TD05H 20g, I ran a 75 shot with stock internals with no problem, and that still was not that big of a kick in the ass. I plan on running a 50 shot at the track with my fp3052 @ 20psi.


Im sorry, but are you sure you had the jets in correctly? If you didnt feel a large kick, then something was definitely wrong with you setup. There is no possible way you didnt get a large gain from a 75 shot unless your car pulled so much timing it just couldnt run through the revs.
 
Reread my post. Our car made over 75 HP on a 25 shot jet setting putting the car over well over 300 hp. ;)
 
mrb91gsx said:
Reread my post. Our car made over 75 HP on a 25 shot jet setting putting the car over well over 300 hp. ;)
I did read your post. Your shot was on a turbo civic, not a DSM. Jerome, if you are going to put a nitrous kit on your car, I would switch it to a wet kit first, and then I wouldn't run anything more than a 75 shot. But an 18 shot is seriously not going to make that much of a difference at all, I PROMISE YOU. Maybe 20-30 wheel which is not a very big kick in the pants at all. Go ahead and start with the 18 shot jets if you want, but my kit did not even come with such a small jetting (I'm guessing because NX doesn't even see a point in running such a small shot). But if you want to waste your money, by all means run that 18 shot all day long!
 
thanks for the advice (everyone), i see all your points. i want such a small shot because id like to be able to use it often without feeling bad about it. so maybe i should go with what i started with: a 35 shot, but wet? and is that okay considering up to 18psi of boost on stock internals?
 
Yes switch to a wet kit. As far as the boost, as long as there is fuel to power it all you should be ok. You have to start worrying about head gaskets with that much pressure though. All very easily remedied though.
 
1990EclipseGSX said:
I seriously doubt you will feel any noticable increase from a wet 18 shot. Yes, the power of the shot is amplified by a turbo, but it's not like you are going to get 90 whp from an 18 or even a 35 shot. When I had my TD05H 20g, I ran a 75 shot with stock internals with no problem, and that still was not that big of a kick in the ass. I plan on running a 50 shot at the track with my fp3052 @ 20psi.


I hear that, I run an 80 shot direct port with a GT-14 @ 17psi and shes got plenty of room to go.

Storm
 
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