Toymods Car Club Inc: Tech & Conversions => mr2 3sgte question ??

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KiwiMR2
Occasional Poster

Location:
Wellington, NZ
Registered:
March 2004

Re: mr2 3sgte question ??

Mon, 05 April 2004 02:22

Quote:

I've got a dyno sheet of my recent 223.5 rwkw run if you want it. I just need to find someone with a scanner. Should shut them up.....

Sweet...would be good if ya could jack that up Smile

Quote:

BTW, the standard fuel pump CANNOT support much. I'm having troubles with my standard fuel pump at the moment. Its the only thing keeping me from achieving 250rwkw. The standard pump is limiting my injectors to around 450cc at the moment, or so my mechanic says.

Could be....as I mentioned there's a few chaps Iv'e read of not upgrading it and there running 850cc just fine, but check out what Phoenix's Power said about replacing the pump:

After some e-mails from you guys, I called them up again and talked to the gentlemen that programmed their ECU's and has done a lot of work on them and so forth.

Well, I started out with the question of the #3 cylinder. He said that in the Japanese models, the surge tank feeds a bit more air to the #2 piston. They don't really worry about it too much. They just over balance the #2 cylinder injector by a few %. He said he has NEVER blown an engine like we seem to be doing.

His main thing he said, was to NEVER... NEVER change the stock timing. He said that when the knock sensor goes off, it retards the timing and it stays that way till the engine is restarted. Not a good way to produce reliable HP.

The key to making the engines work well and produce the high HP by getting RID of the AFM (I'm not advertising for the new AFM-R... is that whatit's called) and reprogramming the ECU for better Ignition timing and fuel maps. I mentioned that for the most part we only have 92 octane grade and he said that's not really a problem but it would require different programming then the Japanese spec computers.

270-280 rwhp is normal for the Gen I and GenII models. Gen III to GenV is around 330 from a simple comp (it raises the boost) exhaust, & intake. As was the last gentleman, they both seemed to be surprised how much trouble we were having making HP. The stock IC is not a problem they said.

It goes, Computer (replaces the AFM, boost sensor, and harness to be plug and play),intake filter,exhaust THEN IC. They claim that the Greedy unit becomes more like awall at high speeds and is only 3 core while their unit is 4 core and lets the air through(the fins aka heat sink area) better. So it does not heat soak as bad even thought its thicker and they claim proof on the intake temp drop. The ignition, they use the stock setup with no mods. He said it is more then adequate. No mods there. He also mentioned some info on exhaust and other parts but I will keep that for another post. Neat stuff though. They use 750 cc injectors on their high HP models but for the mostpart DO NOT change the fuel pump. I was under the impression that they used a different fuel pump for different year models but he said that from Gen I all the way toGen V uses the same pump. The injectors did change from Gen III but not the pump. He said that the Supra pump is over rated and that if we are going to all the trouble to replace it, to just use one of Apexi's units that puts 240 per minute. Its a lot stronger and better unit he said.

I might look into it again and see if I can find some info on the fellas already doing it Smile

Cheers
KiwiMR2

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