Nitrous Related 4age Fuel System Question - Toyota Nation Forum : Toyota Car and Truck Forums

xxtcr87 · 03-01-2005, 04:53 PM

Hi,
I'm new to this forum but not Toyota's. I want to put a ZEX 75hp Wet Nitrous Kit on a MK1 MR2. Will I need to upgrade the fuel system at all like better fuel rail, fuel pump, injectors, fuel pressure regulator etc? If so what specific parts do you guys recomend. Here's the setup that I came up with. Give me your advice.

- ZEX Wet Nitrous Kit http://andysautosport.com/products.p...20Oxide%20Kits

-Weapon R Fuel Pressure Regulator http://andysautosport.com/products.p...e%20Regulators

-Weapon R Billet Aluminum Fuel Rail Adapter, will this thing be any better than the stock piece or is it all for show? http://www.eautoworks.com/html/ORD-1-1-1-24135.cfm

-Better fuel pump if needed.

Anthony

P.S. With a 75 shot, will a better than stock ignition system be needed? If so, what do you recommend?

xxtcr87 · 03-02-2005, 08:48 PM

Does anyone have experience with running nitrous in a 4ag? What's your setup? I know someone in here has thrown nitrous on their 4ag.

Anthony

***MRQtwinturbo*** · 03-04-2005, 09:21 AM

good luck on not blowing up your motor....a 75 shot on an old motor like that is way too much IMO.....save your money for a SC motor swap instead before you blow your motor.....

***MR2Jedi*** · 03-04-2005, 12:46 PM

a 75 shot is high... if ur dead set on doing this, I would only go 50 shot...but ultimately, I would take MRQ's advice... I just don't think the riskyness of N20 is worth an engine.especially if it's a daily driver...

xxtcr87 · 03-05-2005, 01:52 PM

Thanks for your responses guys. No, this MR2 wouldn't be a daily driver. I'm looking to get an old MK1 for a project car to mess around with and take out to the local circuit. I'll be honest, I'm used to wrenching on big v8's and a 75 shot is nothing on those engines, even if they have 80000+miles on them. I'll take your advice since you guys are more familiar with the 4ag's and not run a 75shot, but I'm still wondering what I'll have to do to the fuel system and ignition to keep up with the added HP and make up for the leaning out with the nitrous. Any suggestions?

Anthony

***MR2Jedi*** · 03-05-2005, 03:01 PM

eh, theres no replacement for displacement. I've been wanting to do a small block V8 with twin turbos=madness. but wouldn't that be a kick to drive????

will that be a supercharged MK1?

xxtcr87 · 03-06-2005, 02:42 PM

Ideally, my project MK1 will be an SC, but I don't plan to run anymore nitrous on the SC engine than I could safely run on the N/A 4ag. Can anyone hook me up with upgraded fuel pumps, rails, ignition etc. if that I might need to run a 75 shot max wet nitrous kit on an N/A 4ag safely?

Anthony