Toyota MR2 Message Board - View Single Post - 4A-GE MK1 Engine How can i mod 200hp on my 87 NA 4age motor?

speedygonzalez · 07-27-2008, 05:08 PM

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.

07-27-2008, 05:08 PM	#1 (permalink)
speedygonzalez Toyota Freak Join Date: Jul 2008 Location: Cape Coral, FL Posts: 29 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	How can i mod 200hp on my 87 NA 4age motor? 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.