guestion about 420a internals and mods

Just bought a 1996 gs for $1000 with 100,000k on it in good cond.. My question is are the 420a internals strong enough to withstand mods like nitrous (100 shot) or a turbo up grade? And how much HP could I get out of allmotor. I figure for the money I spent on the car I can spend the remaining $5000 that was left over from my savings on mods. Already tricked out the interior and the paint but, auto painting is my job so no cost there.

Turbo - yes read the sticky on top.
I would not go with 100 shot, you could go with a 75 shot with fuel upgrades. EclipseRST did the 75 shot with fuel upgrades.
Personally I would not go over 50, but thats just me.

what type of fuel upgrades would you seggest. like fuel pump, upgrade injectors and intake stuff like that.

well for 5000 bucks you could pretty much have a turbo 420a(same setup as jake does) i dunno if you want to put all that money just into the engine but it might be work it if your willing to. hit jake up on all the rest of the details from there. i'm in the process of making my 98 gs turbo but its coming along slowly due to lack of funding. but what ever you do with the 5grand you got to put into the car have fun with it

Everyone is turboing their NT's. :(
I am going to be the only one left :p

I went to the dsm tuner site and learned alot about the 420a. It seems like I will get the best hp if I go ahead with a turbo set up. I am still going to build up the engine as much as I can though. With strengthened internals and a turbo, what are your ideas of adding NOS on top of all the mods? To much?

I think Jake (eclipserst) would have the best idea of that. He has done all of that, and is running nitrous.
But if you do run nitrous, PLEASE use a wet system. :)

What about a fogger system?

O.K. I am sure this is on this forum as well so if you just want to throw me a link that would be great. What about the stock ecu? With alot of mods I'm sure the stock ecu is inadequate. What would be a good e managment system to get? Should it be a stand alone or mod the existing one?

ok, here is my experience, we have built a 420a engine, as we speak, right now it has had head work, cams, ported, polish, crank pulley, venom intake, fuel rail, fuel pump, and we have a zex nitrous fogger kit on it. it is spraying a 125 shot of nitrous and a 75 shot of fuel and the car is doing great, it dipped into the 14s in the 1/4... the 420a engine has forged pistons so as long as you have the adequate fuel going to motor you can spray way more then 50 or 75

oh and to let you know Ashah i am running 100 shot, why that big i have no clue, i just like power!!! that plus 21psi out of my turbo really makes it go... i just need TRACTION!!!

That's what I wanna hear. So what was your mph in the 1/4?

oh and to let you know Ashah i am running 100 shot, why that big i have no clue, i just like power!!! that plus 21psi out of my turbo really makes it go... i just need TRACTION!!!

Yea right now you are with that buffed up engine :p But didn't you have 75 on the stock engine.

Don't worry ashaha I will be right there with you w/ a NT :)

i have about 4000 to spend on motor mods for my 98 eclipse rs what would you recommend.

to start... build up the block... the top end isnt that important right now! you can get your whole block done up nice for about a grand...that is if you pull it out of the car and put it back in! pistons and rods with run you around 800 and bore and hone + reasembly will be around 200. so that leaves you with 3000.

what you need to do is start off by figuring out what you want to do... race/strip or the occational strip/more street race! if your planing for big numbers $4000 isnt goin to cut it... so my suggestion is do the street set up for now and upgrade later!

do valves, cams, and springs... after reasembly it should run you around $1000! now you get to have some fun picking out the goodies! you have aprox. $2000 left... evo 16g would be my suggestion, $600. that leaves you with $1400 for intercooler + piping, BOV, injectors, fuel pump, oil lines, exhaust manifold... turbo back exhaust, gauges, S-AFC, MBC (manual boost controller), and some type of pocketlogger would be really helpfull but not necessary if you have access to a dyno or another sort of tuning device!

anything else you need just ask!

since you ran your block out of oil i would recomend buying a new block bored out and with heavy duty pistons, rods, and crank. it might be cheaper to buy a long block all bored out and ported long block is the engine block and head short block is just the engine block.

since you ran your block out of oil


huh? where does it say he did that? i think you might have read the wrong thread!

oops i guess i did reply to the wrong thread. which was the thread with the guy who wanted to turbo his gs/gs that he had run out of oil cuz he forgot the oil cap.

btw it still might be cheaper and better to buy a new block and head if you have a bunch of miles on yours