How much Nitrous on a built motor?
This is the build sheet for the engine, please comment.
Pistons – Arias Extreme Duty 9:1 CR (estimated power rating above
> 1300-1500rwhp!)
> Rods- Eagle
> ARP hardware- Main studs
> ½” head studs, block machined, installed with use of timeserts, torqued
> down to 100ft lbs
> overhaul gaskets- every gasket new from Nissan
> Headgaskets: HKS-
> rear main seal
> main bearings
> rod bearings
> thrust washers
> machine block (with use of torque plates)
> balancing
> polish crank
> redeck heads and block- to ensure mating surfaces between the block and
> the heads are exact
> machine heads to accept larger head studs
> clean parts- prep before assembly- clean oil channels, outer surface, etc.
> rev-up oil pump- disassembled and thoroughly cleaned
> Cams- stock
> Headwork- none
> Valves- stock
> Springs- JWT upgraded
> motor assembly – timed, with front and rear timing cover installed
> head assembly- rebuilt with new valve stem seals
Pistons – Arias Extreme Duty 9:1 CR (estimated power rating above
> 1300-1500rwhp!)
> Rods- Eagle
> ARP hardware- Main studs
> ½” head studs, block machined, installed with use of timeserts, torqued
> down to 100ft lbs
> overhaul gaskets- every gasket new from Nissan
> Headgaskets: HKS-
> rear main seal
> main bearings
> rod bearings
> thrust washers
> machine block (with use of torque plates)
> balancing
> polish crank
> redeck heads and block- to ensure mating surfaces between the block and
> the heads are exact
> machine heads to accept larger head studs
> clean parts- prep before assembly- clean oil channels, outer surface, etc.
> rev-up oil pump- disassembled and thoroughly cleaned
> Cams- stock
> Headwork- none
> Valves- stock
> Springs- JWT upgraded
> motor assembly – timed, with front and rear timing cover installed
> head assembly- rebuilt with new valve stem seals
hey man, as i wrote you in the pm, a 150/300 shot would be sick
nice direct port dual stage setup would be soooo sick, 10s shouldnt be a problem with traction and a good clutch. i cant wait to build a nice big nitrous car...
nice direct port dual stage setup would be soooo sick, 10s shouldnt be a problem with traction and a good clutch. i cant wait to build a nice big nitrous car...
You think a block that, with the exception of rods and pistons, is virtually stock will handle 500+ ft/lb?
Well, on second thought, it should be ok on a progressive or two stage shot.
Good luck getting the driveline to hang with that.
Well, on second thought, it should be ok on a progressive or two stage shot.
Good luck getting the driveline to hang with that.
Joined: Dec 2005
Posts: 10,740
Likes: 25
From: On a forum dedicated to Boost
I dont think I'd drop compression that much....otherwise you'd have to spray all the time to be fast.....you can tune nitrous for high compression....I think that would be a better route....just precise tuning becomes even more important.
Originally Posted by Old School
I dont think I'd drop compression that much....otherwise you'd have to spray all the time to be fast.....you can tune nitrous for high compression....I think that would be a better route....just precise tuning becomes even more important.
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Eagle H beams are fine even tough i think they are made in china, but the QC is done in the US. Scat also has thier products made in china heh. Im aiming for a little over 500 at the wheels next year when i turbo it, right now im toying with the idea of using nitrous untill then. Check out some v8 forums eagles are fine.
I want a extreamly reliable turbo z, and i will get it.
I want a extreamly reliable turbo z, and i will get it.
Build looks good. It's about exactly what I'll go with if I ever feel the need to. Those eagle rods will be perfectly fine under 700whp. If you push it beyond that, though, your rods won't be the first weak point at all.
The only thing I'd suggest is cams, but I think you said you wanted to do them later. You're going to be saving yourself some labor unless you plan on doing them yourself (even then its a b*tch).
Oh, and you might want to look at L19 head studs and that pathfinder cooling mod.
The only thing I'd suggest is cams, but I think you said you wanted to do them later. You're going to be saving yourself some labor unless you plan on doing them yourself (even then its a b*tch).
Oh, and you might want to look at L19 head studs and that pathfinder cooling mod.
It is the l19 studs i think well they are 1/2 inch, ill have to ask again to make sure. Ill do cams later when there are more availible. I can do cams myself on ohc engines ive done it before. The cooling mod can wait, im so broke right now haha.
Joined: Dec 2005
Posts: 10,740
Likes: 25
From: On a forum dedicated to Boost
Originally Posted by taurran
The only thing I'd suggest is cams, but I think you said you wanted to do them later. You're going to be saving yourself some labor unless you plan on doing them yourself (even then its a b*tch).
I haven't seen anyone make nitrous cams for the Z yet. They need to be very different than turbo cams....you don't want alot of high lift....I think that's the reason he says stock cams.
Well there has been some experimenting going on in the v8 world using wild cams not designed for turbo apps, and they are making some crazy power on them. There is not enough information on all the cams yet for me to consider buying any. I would still like to know the max lift on this engine, but no one seems to know. I have yet to actually see something like a cam card. Its like everyone wants to keep it a secret for some reason. I would probably be better off getting custom ground cams from somewhere like elgin or esslinger.
I'm pretty sure JWT knows how to build cams. I think the specs on them are around here somewhere. I was mainly mentioning cams because it will end up saving labor time and costs if he just drops them in when building the motor. Plus, if they do it at Todd's shop it will be far less likely to get screwed up.
I know it would be cheaper but i would need like another 1500$. You know what im already spending the engine taurren. Im going to be broke. The last thing i was pretty much able to afford was headers,test pipes, y pipe. Now i need some mufflers to finish out my exhaust system, for some reason i just have to be diffrent heh. I could possibly afford cams with some cash im getting but im not sure if i should do it or not as i have some stuff i need to pay off haha. I think i have a love affair with car.
I would say a 50-75 shot would be more then enough to spool. Eagle rods aren't the greatest. Sleeves would be on the list considering the combustion pressures that N2o creates. If you have a ginormous turbo, why would you spray on top of that?
Back when my Z was modded I had a single fogger wet setup. Squeezed EVERYDAY for six months straight. At the end of those six months, I had a compression and leakdown test done on my motor. Excellent results, in fact the tech had noted that most motors he had performed the test on did worse than my engine. I had a 100 shot for 5 of those months, then a 125 shot for fun on the sixth month.
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