The timing belt can take it. Curt Brown from here uses a stock timing belt and hits close to that range a the track with No problems . I can go on and on about people here that rev high, but don't need to.

 

I don’t know where you heard this but the fact is that The RX-7, and GTR are the only cars that overshadow the EVO and STI in Japan from a tuning stand point. The 180sx, and Silvia are tuned but they tend to only have minor modifications.
Virtually No one in Japan tunes Supras anymore. The fact is the Supra is not as good as the GTR, RX-7, STI and EVO without substantial work.

 

i think i will take this guys word since he lives in japan. You are lucky to live in Japan!
There are obviously goods and bads to both motors but that is true with all motors. They both kick a** still!

 

The Qr25DE is solid tooo, lol

Lerts hope mitsu doesn't follow suit

 

The QR is not as good as the SR, they have some nice improvements in the head but they missed the boat on some things like being able to rev and strong internals.
-James

 

You would think that with all the aftermarket and people on the tuner scene that some company like Dart would get together and cast a SR block that you could build. They finally did it with the B18 Honda Motor, and something like the 4g's and SR's would be good, especially with people with 3g Eclipses.

I have to agree with the guy who said the hardest part about build the SR is finding a good motor. Before I bought my Cobra, I was going to build a 240 with the SR swap. I researched where to get the engine, and it seems even with the most reputable engine importers would still get bad engines frequently.

When you get to those levels of big HP, like 500+, alot of things come into play, like the DSMs tranny and the crank walk, and it gets expensive. I think where alot of people go wrong is that its relatively cheap to hit 350-400 hp (read relatively) and then as they search for more HP, more attention (read money) is needed for other areas. Alot of people skip those areas, and destroy something.

 

They missed the boat on LOTS of things....

 

Just giving examples on the QR
The only *new* 4-cylinder I've seen with improvements over what it replaces is the Honda K-series. I hope the 4G63 replacement doesn't do the SR->QR.
-James

 

I don't think "they" will do it for the 4G63 because the iron block is as strong as it will possibly get. Do ing a 6-bolt swap (and build up) on a DSM (if it is a 2G) is good for 1000hp+ if you want it. There's not much left to improve on, because the blocks are so cheap. I don't think Shep or Rau are having any trouble out of the blocks in their cars. Honda blocks aren't that strong.

I understand Tomei makes RB blocks, I had thought one of the Japanese tuners made SR blocks too.

 

OBX will be releasing SR20det blocks soon.

 

^ ^
Damn, and I was hoping APC would be first.

 

Yea I was also speaking mainly on availability of the blocks. If you could be a brand new iron block to start a build for any older eclipse or as a replacement for the Evo, wouldn't it be less of a hassel than sourcing an entire engine? But I also understand the 4g is still around, and with the Evo having much success, you don't hear of anyone blowing the block.

God only knows how much that Tomei RB block is.

Any info on the SR block being built by OBX?

 

Yeah, but there is still a ready supply of 1G's. I could probably buy 4-5 whole cars for the cost of that Dart shortblock. N/T or turbo block it doesn't matter, as long as it is a 6-bolt. Someday we'll porbably have to turn to 7-bolts as a source for built engines if CW is ever solved, but it seems that day is a long way off.

Exactly, and the cost from Mitsu isn't all that high.

It was a joke. OBX parts are generally cheap ricer garbage. I do have one of their radiator overflow bottles though.

 

I thought OBX was junk, you would have passed the joke off better if you said SSAutoChrome

 

no, OBX and APC is worse PERIOD. THEY CANT BE BEAT.