20v Requirements

lalo.pineda · 07-08-2009, 09:03 PM

ok i am planning on getting a 20v for my car but need to know what im going to be dealing with can some one tell me every requirement that is needed ...such as am i going to mod speific parts so it can fit or does it just go in and can someone tell me how much it will cost if i get the complete engine for 500 bucks....by the way im so excited on getting it

traintech86 · 07-09-2009, 02:23 AM

i read somewhere that the main thing that is changed is the wire harness...

Raptor13x · 07-09-2009, 02:38 AM

Read through the FAQ's carefully. Pay special attention to the part dealing with transmissions. With the blacktop, the early transmissions (C50)won't let you fit the stock exhaust manifold due to the starter. The later MR2 transmissions (C52) work perfectly. The trans that comes with the 20v (C56) will have shift linkages requiring extensive modification to work. I recommend getting a C52 if your car came with the C50. *I don't think this is a problem with the silvertop, but read up to be sure*.

Get the COMPLETE 20v swap, with all sensors, ECU, everything. Have mr220v make your wiring harness unless you enjoy pain and heartbreak. He does it for like $300 or $350, something like that. You'll also have to do some custom work with the coolant lines.

Something will always come up, so don't start the swap if you don't have a good $500 extra lying around.

lalo.pineda · 07-09-2009, 03:35 AM

thanks man well right now i just have the 4age on the 87 mr2 do you know what tranny comes with that????

Raptor13x · 07-09-2009, 07:58 AM

They changed from the C50 to the C52 in 1987 midway through the year, so I'm not sure. You could call up a dealer and give them your VIN, tell them your transmission is bad, and ask which one you would need to order. Or you could crawl under the car and check to see if there's a mounting point for the starter on the intake side as well as the exhaust side. If it has both, it's a C52.

07-08-2009, 09:03 PM	#1 (permalink)
lalo.pineda No Skills Join Date: Dec 2008 Location: Fresno,Ca Posts: 33 Thanks: 2 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	20v Requirements ok i am planning on getting a 20v for my car but need to know what im going to be dealing with can some one tell me every requirement that is needed ...such as am i going to mod speific parts so it can fit or does it just go in and can someone tell me how much it will cost if i get the complete engine for 500 bucks....by the way im so excited on getting it

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07-09-2009, 02:23 AM	#2 (permalink)
traintech86 Traintech86 on all im's Join Date: May 2009 Location: Norfolk VA Posts: 1,083 Thanks: 24 Thanked 27 Times in 26 Posts My Google Map iTrader Rating: (3/100% )	i read somewhere that the main thing that is changed is the wire harness...

07-09-2009, 02:38 AM	#3 (permalink)
Raptor13x Legendary Join Date: Apr 2006 Location: Farmington Hills, MI Posts: 4,001 Thanks: 7 Thanked 40 Times in 34 Posts My Google Map iTrader Rating: (5/100% )	Read through the FAQ's carefully. Pay special attention to the part dealing with transmissions. With the blacktop, the early transmissions (C50)won't let you fit the stock exhaust manifold due to the starter. The later MR2 transmissions (C52) work perfectly. The trans that comes with the 20v (C56) will have shift linkages requiring extensive modification to work. I recommend getting a C52 if your car came with the C50. I don't think this is a problem with the silvertop, but read up to be sure. Get the COMPLETE 20v swap, with all sensors, ECU, everything. Have mr220v make your wiring harness unless you enjoy pain and heartbreak. He does it for like $300 or $350, something like that. You'll also have to do some custom work with the coolant lines. Something will always come up, so don't start the swap if you don't have a good $500 extra lying around.

07-09-2009, 03:35 AM	#4 (permalink)
lalo.pineda No Skills Join Date: Dec 2008 Location: Fresno,Ca Posts: 33 Thanks: 2 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	thanks man well right now i just have the 4age on the 87 mr2 do you know what tranny comes with that????

07-09-2009, 07:58 AM	#5 (permalink)
Raptor13x Legendary Join Date: Apr 2006 Location: Farmington Hills, MI Posts: 4,001 Thanks: 7 Thanked 40 Times in 34 Posts My Google Map iTrader Rating: (5/100% )	They changed from the C50 to the C52 in 1987 midway through the year, so I'm not sure. You could call up a dealer and give them your VIN, tell them your transmission is bad, and ask which one you would need to order. Or you could crawl under the car and check to see if there's a mounting point for the starter on the intake side as well as the exhaust side. If it has both, it's a C52.