How much HP can my stock RS engine handle?

[lo eclipz]

mitsucar4 if you know so much about the engine and you are so against my numbers, what hp will i be running at with the mods i listed.

 

[L2RTSiAWD]

I will say you don't dyno more then 250WHP. I will say if you get 250WHP it will be impressive I don't see it happening.

 

[lo eclipz]

even if he is off, i will still be impressed and happy with 250whp and i still have alot of bolt ons to attach to that and more machining, there is still the cooling system to help cooling, fuel and ignition system, cams and gears, engine mangement, fuel controller and anything else i am forgetting, throttle body, intake manifold. I will be in touch.

 

[L2RTSiAWD]

I'm talking 250WHP with your motor and all the bolt-ons. Not just the motor.

 

[lo eclipz]

the bolt ons i am refering too aren't the ones i listed in my mods list or in any message the ones i am going to do later on, and no one can say with everything you can do with all motor for my car it is only gonna be 250whp. But we'll see, on the low end right now with the stuff being done on the low side might be 250whp. but who knows.

 

[curtis_rak]

For me, I am shooting for 200-215 WHP before I do my turbo kit...that would be sweet, and should yield some decent 1/4 mile times.

 

[lo eclipz]

sounds good, hopefully it all works out and you can even get more power. you can pm me anytime with questions or commets or justb post here.

 

[mitsucar4]

Even 250hp is a bit much. I'm saying more like 200.

"We are knifedgeing the crank, hot dipping the block, 8.8:1 .20" overbore pistons, eagle rods, honing the block, porting and polishing the head, valve rework, bored throttle body, port and polish intake manifold, header, downpipe, complete blueprinting the engine, dual muffler crossover racing catback exhaust, ac removed, power steering removed for weight, timing belt replaced with chain, 9 mm wires, platinum plugs, cold air intake and this work is a predicted 310 hp at the dyno meaning to the wheel hp."

If this is what your mechanic is doing and this is the hp he's quoting, I'll tell you right now you're going to be dissapointed. Blueprinting your engine isn't going to give you that kind of hp, even with an intake exhuast, downpipe, etc....



"My 420a after the rebuid will be on just motor around 375 horsepower, no nos ,no turbo and thats on the 420a engine"

This isn't going to happen. And if you do reach 375 hp you've just dished out a ridiculous amount of money that could have been accomplished with a turbo for a much cheaper price. By now, you're probably cussing me an my whole family out, but I just want you to be realistic and understand the limits of a 2.0L 4 banger. The reason we all post here is to get info and advice. I'm just letting you know that those numbers will probably not be reached.

 

[420aVenger]

Originally posted by mdre21
crane makes an ignition system that you can set your rev limiter by 100 rpms from 600 all the way to 9900. Has anyone used this before or know anyone with experience and how high they went??

That won't overide the ECU. You'll still get ignition cut at 7800.

 

[curtis_rak]

Here ya go!!

http://howell.mountain.net/SDC/howellboard/topic.asp?TOPIC_ID=1683

You guys and your PUNY horsepower numbers. If someone has the cash...please buy one and tell us how it is!

 

[lo eclipz]

no crap i know blueprinting doeasnt create hp, but at higher hp the engine will be more efficient and more balnced, the mods i listed are not all contributing to the hp number and the 375 is at crank hp, not at the wheel. And this whole build is almost costing me nothing, just parts and a little labor. And for you and everybody else dissing me, you are just lazy and hating most of you that diss me. Just saying use your money and put turbo is a watse of time for the long run. Dont be scared to be original and build the hell out of the motor first then nos and turbo. Don't just say turbo the stock engine becuase you dont know about the internal stuff or dont want to do it or can't afford it. Let me build my motor and i think i am building it the right way and you do it your way. But as a bit of advice just adding turbo to your car is a quick fix, but if you want reliability and major hp you have to build first or shortly after. And the quotes for my hp is just the beginning. So in conclusion, unless you have done the stuff i am doing in the way i am doing it with the parts i am doingm it with and with the person who is building it, don't say wont wont or will happen without knowing all the info.

 

[curtis_rak]

I agree, building up the engine is a good idea if you want to turbo. A lot of guys simply bolt up the turbo and have-at-her. Then, when the engine blows, or a head gasket blows, or whatever, they are sad.

lo_eclipz
I think you definately have the right idea going on, regardless of what HP you will have, causeit really doesnt matter. What matters is that when you go turbo and nitrous, your car will be able to take it and take it VERY WELL.

 

[420aVenger]

Dude no one is dissing you for building your motor up. Lots of people build their motors for turbo. We are just saying that your HP numbers for that NA engine are outrageous and pobably not going to happen.

 

[curtis_rak]

Ok, how about we forget about the HP thing and exchange some real info, some useful info.

I was on Hahn's website and was looking at the Stage 4 kit. It comes with pistons and rods for internals. However, will my engine compression stay the same? If it stays the same, I might feel a little uneasy about running 20psi of boost or more. Or am I paranoid and underestimating the 420a?


http://www.hahnracecraft.com/auto/staged/s4.htm

 

[98TsiAWD]

Originally posted by MuttedTSiAWD
It doesn't matter if you are building a "race" motor. Forged internals do not increase power they are able to hold power. The only thing that will give you HP out of your "race" motor is the lightned crank and headwork. 8:8 compression will never give you 300HP all motor that's lower than stock compression. Your engine builder is an idiot. I don't know how much your paying for this motor but I guarentee it will not Dyno over 300HP at the wheels.

Exactly what I was just planning on saying, I agree with 420aVenger, 190 whp, 210whp TOPS, very unlikely with that compression. All you are doing is making your engine stronger, not more powerful with all those internals. the headwork, porting, polishing, etc. will give you power thats it.

 

[lo eclipz]

unless you get bigger compression pistons with the hahn kit, go overbore, bigger headgasket or expand the head the displacement wont change, so with the kit i would stay at 9:1 around that for pistons while going turbo. The JE 8.8:1 .020" overbore forged pistons i am getting for my motor are rated 700+ hp, so with this build and turbo, etc they will handle it easy. So build the internals and get them turbo ready for the future when you do go turbo and the engine will be very stable and be able to handle the turbo at a pretty reliable level.

 

[curtis_rak]

I just dont want to strap on the kit and have something break as soon as I turn up the boost.

 

[lo eclipz]

what i would suggest is put alittle money into the build then turbo, but at a lower psi the stock internals should hold for a while. The 2gnt internals hold safely around the 300 mark with hp, so i would build then turbo like i am going to do, but either works, just map out completely from the begginning of what you plan so you do everything just once.

 

[curtis_rak]

As you can tell by my weak mods list...I plan on doing it all in one shot, taking one big plunge.

 

[97_'Clipse]

Well...........I just read that entire thread and I'm impressed!

Somebody in here knows what they're talking about. I'm not sure who it is, cause I'm a newbie. I have a 97 eclipse RS. I was planning on diving into all the bolt-ons right away, but after reading this I want your opinions. I'm only 17 and have limited cash flow.....Where should I start? I'd like to put about $1500 in right now and be able to add on later. I don't want a drag car, just a respectable street machine without doing damage to my motor? It would suck to dump a ton of cash into my car and lose the powerplant. And don't just say NOS.....Thanks

 

[mdre21]

good to hear there's a 17 year old out there with his head on his shoulders. If you got about 1500 to work with, i would first get an intake and a good cat back, that'll run you probably 4-700 depending on what you get. Then i would probably get a set of cams and when you get them installed have them advance the intake 2 deg. and retard the exhaust 2 deg. that'll be another 500ish. With any money i have over i would spend on some good tires, even if you put them on the stock rims. You can make all the power you want but if you can't get it to the ground its pointless and useless. Other mods you can do for cheap are are just a good idea, is to change your plugs and wires, not only will it help with performance but with gas milage and efficiency too. You can just buy straight oem replacements for both but you might as well get a good set 8mm wires. As for plugs, just get the NGK BKR5E, they are one range hotter than stock and a set of four is like 7 bucks. Replace those about every two oil changes. Don't worry that much about expensive platinum or any of that crap, your not running high enough voltage on a stock ignition to warrant spending that much. And most importantly any time you make a modification, find out how it affects your car, will you have to launch at a different rpm, what different launches will work in different situations. I can't stress enough how important it is to get to know how to drive your car and other cars too. Plus the only thing that costs is gas money.

 

[lo eclipz]

i am building my 420a motor all motor 0n my 96 eclipse rs. So if you or anyone has questions or want help getting parts for cheap, i know where to get alot of parts and info. pm me or email, or just post. I can give info on your build up of your car, give advice and not bash you on your opinions of your build and how you want to do it, even if you give the numbers you think your build will be, if you give wrong numbers and i know they are wrong, then i might say something, but not bashing and thats it.

 

[Super20G]

It's very possible to make a 420a motor fast. And then you have the added satisfaction of smoking people with your "neon" motor ;-) Plus our engines are more advanced CAD wise than the 4g's... Don't get me wrong, 4g's are awesome in themselves, but if you've got a 420a powered car, there's no reason to sell it... unless you really really want awd

 

[lo eclipz]

you telling me you running stage 5+ turbo on your car, what whp levels are you running and any timeslips yet. I am building my 96 eclipse rs all motor right now, so im curious what the 420a can, there is a guy down in roseburg, or that has a fully built twin turbo 420a motor in his eclipse almost 700 whp dynoed, they same guy who is building mine did his.

 

[Super20G]

I dont drag the car right now, cause i am unemployed and cant fix her if i blow up another tranny or something, but stage 5 runs a mid 11 1/4 @ 28psi.