I'm new to this thread about NOS, some of you may already know me but if not I got a Hybrid motor in my 4thgen. I'm considering on getting the NX kit 70 & 100 wet shot complete with bottle warmer. My comp is 11.5:1 I'll ofcourse get the Walbro 255 and a A-FPR and maybe bigger INJ My main question is how are the 3.5 internals holding up is there anything that I should be aware of before I get ahead of myself opinions are apreciated.

Link to Mods list

 

You might want to look into the Walbro 190 instead of the 255. Unless you're planning on spraying +150 shot or going the boosted route.

 

Is there a chart that may explain the Hp or shot to the amount of fuel necessary?

 

THe Walbro 190 high flow pump will support 200 shot without a problem from a wet kit. Running nitrous on a high cr engine is ok unlike boost. But you may have problems with timing.

 

So does anyone have any stories sparying a 3.5 anyone ever had problems piston rings/ Rods / Valves any issues with internals I'm curious because I don't wanna blow teh motor

 

3.5 Guys spray without problems. That motor can take nitrous much better then 3.0.

 

Japmax, why aren't you using full 3.5? I thought you had that in mind too.

Also, did you swap out your auto yet?

Hungry for more power already, lol

350z guys are having problems with their rods around 400-450whp, but under that the 3.5 seems to take boost/nitrous very well.

 

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Oh yeah I should change the topic too Nos on full 3.5 4thgen but as soon as I get the 5spd in I want to dyno compare the two heads ported 3.0 heads vs 3.5 heads. I think IMO my ported 3.0 heads with 3.5 cams will flow just as good or almost the same as 3.5 heads . If this is true then that will save 4thgeners time and money vs. doing the full 3.5 swap.

 

Honestly I think doing a full 3.5 swap with 3.0 ecu is easier than a hybrid.

IF SR20DEN's method works, you don't have to open your heads, just the timing cover. We'll have the answer soon (And I'm the guinea pig!).

 

Oh ok that sounds good then man you guys are moving fast with the info I need to be on here more often I haven't atempted puting the 3.5 heads on yet but it sounds like things are getting easier and easier with the full 3.5 swap

This is my last post about HYBRIDS will soon be old news or is it already Pioneerings moving like wildfire on here ORG

 

It would rock if we could have 3.5 heads, except with a 3.0 combustion chamber... and tomei cams.

And you think that's bad? I've been driving a 1989 Tempo since last November. I've been driving the beater so long, I think cavaliers are fast now. I need a car that takes less than 14 seconds to get from 0 to 60. I can't take this anymore. I just can't.

Must... make.... car... run.

 

I got the kit but I'm going to hold off untill I get my 5spd and 3.5 heads so untill then I'll keep you guys posted....