Why 1Jz-GTE?
 

Well it seems like alot of people have or are swapping there 7M-GTE to a 1Jz-GTE. This is probly a stupid question but why? Look at this i got this off Wiki so ya...

2.5L 1Jz-GE 200 hp at 6000 rpm and 185 ft.lbf at 4000 rpm.

Compaired to the 7M-GE

3.0L 7M-GE 200 hp at 6000 rpm and 196 lb·ft at 4000 rpm.

Isnt the 7M Better?

With Turbos
2.5 L 1Jz-GTE TwinTurbo 280 hp 272 lb·ft

3.0 L 7M-GTE SingleTurbo 230 hp 250 lb·ft

Sure the 1Jz-GTE has 50 more hp and 32 more lb·ft but is it really worth the cost of a new engine? Wouldnt it be cheaper and easier just to buy a better turbo for the 7M-GTE?

I brought up this topic because my 88 Supra has 170,000 (KM NOT MILES EH) on her now so the HG will blow soon and i'm wondering if i should just screw the 7M-GTE with its blown head gasket and get a 1Jz or rebuild the engine/turbo i have and add a few mods.
http://i186.photobucket.com/albums/x...n/Supra003.jpg
http://i186.photobucket.com/albums/x...n/Supra005.jpg
http://i186.photobucket.com/albums/x...n/Supra008.jpg
http://i186.photobucket.com/albums/x...n/Supra009.jpg

Cheaper route would be just rebuild the 7M head gasket changes are not hard, but they are difficult. (hope that makes sense) But then the mods you want to add will add up the costs quick. I think the engine change is due to aftermarket. Parts for the 1JZ are easier to come by and probably a bit cheaper in the long run. The 7M is just like any other engine, build it right and it will last forever. I guess it comes down to what you want out of the car. 400HP, stick the 7M. 1000HP get a 1JZ. I have a celica with a 20R in it. Common swaps are the 4AGE and 4AGTE. Both engines are a bit better due to the fact that speed parts for the 20R are almost non-existant. When you do find them they are; 1. Used and therefore take a bit of work to get them up and running and 2. Even used they tend to be very costly. Swapping in a newer engine is much easier and cheaper in the long run due to support and parts. This debate goes all the way back to Flathead VS Small Block Chevy.

I'm seventeen im not going to be able to handle 1000Hp lol 400 would be good, would be just enough to hold my own. Here in BC we have a little problem with Skylines and Stangs, there kinda starting to piss me off. Idiots in there shitty R32 skylines (Not the GT-R's those are sick cars) think there so cool rolling up to a light and trying to race a Z06.

1jz is generally more reliable and can handle lots of power without any internal modification

7mpower.com the 1jzgte is more for track racing. but if you want a great street car. stick with the 7m. just my 2 cents.

1jz for sure. Better tech, new design, stronger internals, smoother power, better for daily driving. Ditch the 7m if you can and never look back.

Dont you have a 800hp 7m?

Just answering honestly. 7m's cost alot of money to make solid. 1j is far superior in terms of dd, and bpu upgrades.

Honestly is a good thing I sent you a PM i dk if u got it. I was only going to go for around 350Hp still do the swap?

I would, you'll be alot happier. Trust me.

check your inbox

Myself..... I have only played with the 7m.....its strong and reliable under 500hp...

If your car is in nice shape and origanl from a stand point of value the 7m rebuilt right might bring more money in the long run...as there are fewer and fewer all orignals left...

but as stated the 1j is newer engine.. better built from factory then the 7m was...

But if in all honesty you want to swap it and really hold value and desirablity of car... 2j is the only way to go...:} everyone has done the 1j swap because people dont seam to beable to build a 7m to hold up..

If all you want is 400hp then personaly id stick to the 7m...thats just my opinun

My cars an 88 BONE STOCK turbo check the pics it the nicest stock pre 89 u will see. If it was a 89 or new i would swap but i think theres to much work in putting the 1jz in. No point in wasting a perfectly fine for now 7M-GTE. Maybe down the road if i ever want to swap ill get a cheap 89 N/A (There like $1500 in Canada) and swap that.

I'm with you Ethan. I say keep the 7M-GTE. It's your first car and it comes with a turbo in it. I just got a 90 N/A and I'm considering getting a 7M-GTE or a 1JZ-GTE. I don't have money for a swap yet, but when I do, I'm leaning toward the 1JZ because I want reliable 300-400hp turbo power, and being that mine has over 205K MILES (WOOOOWWW!) on it, it's the perfect swap candidate. It's still running so I can drive it until the HG blows (hopefully after I'm ready to swap). But there's some other threads that talk about -and show - the insides of both turbo motors and It's a toss up depending on where u buy it and how much u pay for it. They also say it's best to find a whole front clip, which costs more than the motor itself of course. So u may be better off with the one u already have...at least until u crave more power. If mine was a turbo I would if it was in good condition.