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RWDboy
Forums Junkie

Location:
South Australia
Registered:
July 2002

Re: GT4 modification and performance ...

Sat, 21 May 2005 01:36

Lance -> although I'm coming across as confrontational I'm very eager to *learn* here rather than just argue for arguments sake. As such I'm really glad you posted those pics up and are willing to go thru these things with me.

I haven't had a chance to look, but I think there is no oil cooler between the oil filter and the block on the Gen 1. I have, however, got one of those oil coolers lying around (or something similar, I will check on that later today). I got it off of a 5S-FE engine that was at a U-Pull-It - so that's certainly NOT an expensive item to get a hold of.

Having said that, I am definitely not a clever cookie cause I couldn't figure out what it was until you showed me that picture Very Happy

Quote:

Really a null point since u've said that the Gen1 pistons are inferior... unlike what you were implying before.

Look I SAID that I made a mistake regarding not including the pistons in my statements about the bottom end. It was not an IMPLICATION that the pistons were just as good, it was simply a lack of good communication on my part.

The conrods look different between gen 1 and gen 2 as well - but I've still yet to hear anyone complaining about the Gen 1 conrods strength, maybe there is some hp (rpm) or reliability to be gained through the design of the gen 2 but I still wouldn't be looking at changing conrods unless I was trying to get REALLY big hp out of a Gen 1 engine.

Crank looks the same except those oil feeds do look large compared to my memory of the ones out of my Gen 1. I might be tempted to hazard a guess that this would help with the issues of big end bearing's picking up but I'm not sure if it's actually an oil-flow related issue that causes problems (ie restriction to flow in the crank) or if it's related to the path of the oil through the block - I'm not going to judge either way on that one.

Of those costs you list, only 3 *really* need to be taken into account for the sake of argument, and that is the pistons, oil pump and maybe if you like the water pump. And no Gen 2 engine is going to fall into your lap for less than the cost of those components. Most engines around the place, even non-rebuilt can cost up to $2000, and I should know - I hunted around like mad at importers and wreckers when my Gen 1 blew up looking for a Gen 2 to replace it. Of course, you can sell the Gen 1 that you now have spare to recoup some cost.

The reasons that I'm dismissing the cost of the other components (for the sake of argument) is that if I were to stick a Gen 2 engine into my car then chances are it would need just as much of a rebuild as most Gen 1 engines out there, ie bearings, seals, gaskets, maybe even piston rings and boreing/honing etc.

Basically, you could spend up to $900 on forged pistons for a gen 1, or you could buy a gen 2 and sell the gen 1 and end up spending $1000 to get a similar result (although pistons won't be as good, but there are other benefits as you will know about and I am trying to learn about).

Anyway, whatever hehehe

it's all up to the individual choice.

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