How can i mod 200hp on my 87 NA 4age motor?

[speedygonzalez]

Hi everyone, i'm new to this MR2 forum. I need help on how to setup 200hp on my 4age. right now i'm on a process of rebuilding the whole motor due to blown head gasket. I already had the head and 3 angle valve job done. meanwhile i'm thinking of doing port & polish next on the intake manifold. i was wondering, if doing port & polish, will it give me xtra HP, if so how much? also, i already bought new clutch kit, main bearing set, head gasket kit, oil pump, and rod bearing set. the MR2 has a custom OBX performance exhaust with straight pipe and a K&N filter setup, and man, it sounds real aggressive, loud deep tone, unlike any other ricer sound like a civic. anyways, i just need to know what to buy and what to do so i can hit 200hp. i'm not planning to go turbo, just pure motor all the way! thanks.

[Ku-sama]

get a beams.

[enzospriggs]

forget beams heres what you do you want 200hp pm me it cost money but its worth it i tuned mine to 165 and can get 250 off it all n/a no turbos no superchargers just raw power

[Timon]

Secret information?

We all know it costs a lot of money to beef up a 4A-GE n/a, there is no secret to it - lots of money.

I don't know about drifter here, but from what I've read it is no where near cost effective to stay with a 4A-GE when look in terms of power. You'd have better luck starting with a 4A-GE 20v swap.

[speedygonzalez]

??? i'm not trying to sound stupid or anything, but, what is beams? i'm not a mechanic as u can see, but what i want to learn at the same time. also, i don't understand what enzospriggs is trying to say. please be specific, i need to accurate info.

[speedygonzalez]

hey! My MR2 looks just like yours Timon. cool.

[Raptor13x]

I highly highly doubt you'll ever see 200hp out of a naturally aspirated 4age. You'll need boost, or at a minimum, nitrous to get anywhere near that.

[Ku-sama]

"Breakthrough Engine with Advanced Mechanism System"



"The fourth generation of the Toyota 3S-GE series, dubbed by Toyota as "Breakthrough Engine with Advanced Mechanism System". This series is technically advanced, even more so than the 2JZ-GTE. The first generation engine (Red Top) uses single cam VVT-i, the second (Black Top) employs dual VVT-i (on both the intake and exhaust) to provide 150 kW. It is available on the Toyota Altezza, Celica, Corona and MR2 and is the only 3S-GE to arrive in a rear-wheel drive layout from factory."



The first version was equipped with VVT-i and produced 197 bhp (147 kW, 200 PS) @ 7000 rpm. It was available in a few models sold only in Japan - the MR2 G and G-Limited, the Celica ST202 SS-II and SS-III and the Caldina. BEAMS is an acronym which stands for Breakthrough Engine with Advanced Mechanism System.

In 1998 a second version was released with dual VVT-i (variable timing on both the intake and exhaust cams), titanium valves, battery-backed injectors and a slightly higher compression ratio (11:1 instead of 10.5:1). This engine powered the Altezza RS200 and produced around 207 bhp (154 kW, 210 PS) @ 7600 rpm.

[speedygonzalez]

ok. will BEAMS work on my MK1 MR2? i'm not planning to swap or go turbo. just pure motor.

[Ku-sama]

it's a swap...


you'll dump at least $3-4k into rebuilding your 4AGE and it still won't be as good as a 20V swap ($1200) or a beams ($3500) and in the end, you are taking the old motor out anyways and spending a few weeks/months in the garage rebuilding it from the ground up. where as you'd be swapped within a month with the BEAMS...

[enzospriggs]

sry im saying i think the 16v has a lot more potental then the 20v wow you get 4 more valves just put a cam set in a crank some new pistons and port and polist your head and intake bigger fuel inj. bigger fuel rail a good intake and cam gears if you want that kind of tuning and then take it in and get your computer reworked and trust me youll be happy o headers are a must if you dont port them and i found on my mk1 no muffler just cat. is best run a bypass valve mine foot dynoed at over 250 i couldnt control it so i detuned it to about 165 ish and you can do outher moods to do on the fly tunes thouse are secrets i dont let out on a thread maybe on pm

[enzospriggs]

grand tottel for me on my 4a-ge build 1000$ in parts i do my own laber

[Raptor13x]

The BEAMS engine is a 3sge. It would involve LOTS of time, money, and effort to swap it into a mki.

Why are you so against boost?

[enzospriggs]

Originally Posted by Raptor13x

The BEAMS engine is a 3sge. It would involve LOTS of time, money, and effort to swap it into a mki.

Why are you so against boost?

me i hate boost it cause lag and problems n/a is the way to go hand built raw power in my view

in my eyes its like the cheep easy way to go like buying a ford focuse and putting a turbo on it and going to the drags in my eyes

[Ku-sama]

Originally Posted by enzospriggs

grand tottel for me on my 4a-ge build 1000$ in parts i do my own laber

that's great, a lot of people don't have a shop and machining equipment in their garage, so it's not going to be so cheap for them...


that's like me say to you that I can make Person A a computer better then a $6,500 dell with only spending $750 in parts because I get a bomb ass discount so he should go see how far his $750 can get him compared to mine.



cams are an easy $500 for brand new performance ones, plus the cost of putting them in and doing the timing work, and on top of that a P&P of pretty much the whole block would run about $850 in labor. so take these things into consideration.

[Ku-sama]

Originally Posted by enzospriggs

me i hate boost it cause lag and problems n/a is the way to go hand built raw power in my view

in my eyes its like the cheep easy way to go like buying a ford focuse and putting a turbo on it and going to the drags in my eyes

lets see....


Lag? CT20B, nuff said.

and RAW power from a 1.6l 4 banger? funny. raw power is a term for V6's and V8's.

[enzospriggs]

Originally Posted by Ku-sama

that's great, a lot of people don't have a shop and machining equipment in their garage, so it's not going to be so cheap for them...


that's like me say to you that I can make Person A a computer better then a $6,500 dell with only spending $750 in parts because I get a bomb ass discount so he should go see how far his $750 can get him compared to mine.



cams are an easy $500 for brand new performance ones, plus the cost of putting them in and doing the timing work, and on top of that a P&P of pretty much the whole block would run about $850 in labor. so take these things into consideration.

this is true this is true thats is just for me but still though im a 4a-ge 16v lover ill stand by the 16v any day but everone has there on wants and needs