n2o, internals and tuning

[fredpoulay]

I have two questions that i'm looking for an answer:

First question:[/B]
Wich is the best withe n2o, high compression pistons, or low compression pistons?
For me n2o is like forced induction. When you instal a turbo on a high compressed engine like the 2ZZGE, you have to be carrefull with the turbo compression. So if you want a lot of boost, you should instal low compression pistons. It is tha same with n2o?

I'm not sure because a guy tol me he had seen a mustang with 16,5:1 pistons and n2o and it was performing very well.

Second question:
Istalling new pistons and new rods in the 2ZZGE, does it require a tuning with a Power FC?
I mean, when you want a lot of boost with n2o, you have to make your engine stronger, so you have to instal new rods and pistons.
[B]I don't want more NA power, i just want a stronger engine able to support a 100shot of n2o in order to be under 13s for 1/4 miles.

Do you see what i mean?

[fredpoulay]

no replies?

[GeckoTS]

...visit this website ;)

http://monkeywrenchracing.com/wiseco_pistons_toyota_celica_gts_2zz_ge.html

you can find more parts... and info :naughty:

[fredpoulay]

I know the monkeywrenchracing website.

On the pistons and sleeve kit page there is:

"Choose 8.8:1 units to suit supercharged or turbocharged applications; choose 12.0:1 for increased naturally aspirated power. These pistons will work with stock rods, but Crower rods are strongly recommended for engines that will see nitrous use or boost pressure"

If n2o is considered as Forced induction (like turbo or SC) we have to choose 8,8:1 pistons.
Or, if it's considered as NA, 12,0:1 pistons is the way to go.

Also, it is not written if we have to do some tuning while installing new pistons whitout a turbo.
I repeat, i don't want to increase my NA power, i only want a big difference between my NA power (stock + intake + exhaust = 170whp) and the power with n2o.

With n2o i just need an air/fuel/n2o ajustment.
But if i add nex pistons, do it require more tuning with a Power FC??

[BHam00GT-S]

Generally, when people want high nitrous motors, they use high compression pistons, but make absolutely sure that they have built internals and yes, tune. Nitrous does not equal boost. It is considered forced induction, but it is in no way like a turbo. If you're not going turbo- or super-charged, and want straight nitrous, here is what I would do...
Higher compression pistons, very strong rods (good Crower or Carrillo Rods), maybe 12.5:1 compression pistons, maybe sleeve it, and get a PowerFC to tune the car. Also, you'd probably need to retard the ignition for nitrous runs.

[fredpoulay]

So:


-n2o is a way of FI but not like SC or turbo.

-High com pistons with sleeve kit, valves and valves springs are necessary if i want to used with no problem a 100shot of n2o. And i also have to do some tuning with a PFC, and get a timing controller when i want to use n2o.

-if i stay with 50shot or some 75 (not often) i think i can keep my engine internals stock.

-I think i will choose the second way because it cost a lot to build an engine.
750$ sleeve kit with pistons
350$ valves
250$ valves springs
1350$ PFC + Datalogit
tuning...
==> more than 3000$ with the n2o kit.
And i think it's not very easy to tune a 12,5:1 engine and use it as a daily driver.

So a 50/75 shot n2o will be my choice.
Perhaps, i will add a stronger clutch, lighter rims (15"), better tires, and better shocks/springs, and it will performs well.

thanks

[GeckoTS]

I know the monkeywrenchracing website.

On the pistons and sleeve kit page there is:

"Choose 8.8:1 units to suit supercharged or turbocharged applications; choose 12.0:1 for increased naturally aspirated power. These pistons will work with stock rods, but Crower rods are strongly recommended for engines that will see nitrous use or boost pressure"

If n2o is considered as Forced induction (like turbo or SC) we have to choose 8,8:1 pistons.
Or, if it's considered as NA, 12,0:1 pistons is the way to go.

Also, it is not written if we have to do some tuning while installing new pistons whitout a turbo.
I repeat, i don't want to increase my NA power, i only want a big difference between my NA power (stock + intake + exhaust = 170whp) and the power with n2o.

With n2o i just need an air/fuel/n2o ajustment.
But if i add nex pistons, do it require more tuning with a Power FC??


if you open the page you can find (in the right side) the compression ratio... and near 12,1 compression you find this words... "Nitrous or NA" ;)

this pistons (12,1 compression Ratio) is for NA or N2O mod ;)

[fredpoulay]

if you open the page you can find (in the right side) the compression ratio... and near 12,1 compression you find this words... "Nitrous or NA" ;)

this pistons (12,1 compression Ratio) is for NA or N2O mod ;)


excuse me, i've just seen NA, but you re right, thanks.

Now i'm expecting my celi, and after i will be fed up with the stock acceleration, i'll add a n2o kit to kick ass to BMW M3 drivers!!!! (Audi TT, golf R32... are already killed with just an intake and exhaust...) :rofl: :rofl: .

[styphon]

Are you using direct port Nitrous? With higher shot and a non-direct port system, I'd be afraid of nitrous pooling in the intake.. But maybe I am just paranoid?

[Sky2king8]

He doesn't have the kit yet...

[BHam00GT-S]

don't expect to beat m3s with JUST a 75 shot of nitrous (75 is the highest I would ever consider going on stock internals). even then you should retard the ignition a degree or so. If you want to beat M3s, you'd need more than a 75 shot and basic bolt-ons IMO.

[Sky2king8]

don't expect to beat m3s with JUST a 75 shot of nitrous (75 is the highest I would ever consider going on stock internals). even then you should retard the ignition a degree or so. If you want to beat M3s, you'd need more than a 75 shot and basic bolt-ons IMO.


Well, I suppose you are right...they are mid-low 13's...then again, I don't really see the point in beating other cars...you are driving on the street, the most important thing is getting to the speed limit :-P

[BHam00GT-S]

ummm, getting to the speed limit using nitrous huh? I seriously hope that was a joke.
But using mag numbers to give M3 1/4 times is about as purposeless as saying he'll hit mid 13s. You have to factor in the driver, as always, not to mention that any given M3 could be modded as well. If he just wants to get the numbers and say 'I could beat an M3 - look at my time!' he'd probably get flamed a little bit

[WAR]

First, if your replacing your pistons you must sleeve the engine.

second, if you want to run more then 75 shot of nos, you need to go with a individual nos sprayer in each one of the intake runners (they make kits to do this). The 2zzge intake manifold is designed as a "dry" manifold. That means that air will flow well and evenly (or reletively evenly) to each cylinder. However any gas sprayed in with the nos will not flow evenly in the intake manifold and you will end up leaning out a cylinder(s) (probably #4) and running others really rich, causing you to blow your engine. One of the reasons people can do big nos on carbarated engine's without a problem is because the intake manifold was designed as a wet manifold to help/aid in getting even gas distribution between the cylinders, so the fuel sprayed in with the nos gets distributed evenly.

if the nos nosel(s) are put into the individual intake runners then each cylinder will get the right amount of fuel with the nos, and so can run much higher HP levels.

*as a side note, stay away from monkey wrench racing, all they know is how to throw sh!t.

[Sky2king8]

*as a side note, stay away from monkey wrench racing, all they know is how to throw sh!t.



Thanks for all the useful information...but I would say a lot of people here have been very happy with MWR and putting your opinion all over your facts can sometimes take away from your authority.

[WAR]

Thanks for all the useful information...but I would say a lot of people here have been very happy with MWR and putting your opinion all over your facts can sometimes take away from your authority.

Thanks MOM your the best!!!

Try to stay on topic.

[BHam00GT-S]

Thanks for all the useful information...but I would say a lot of people here have been very happy with MWR and putting your opinion all over your facts can sometimes take away from your authority.

Thanks MOM your the best!!!

Try to stay on topic.

Actually, factually, many people are very pleased with MWR, but there have also been complaints. Just stating the facts

[Sky2king8]

Thanks MOM your the best!!!

Try to stay on topic.


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