N/A w/ turbo beat a stock Tll???
04-17-05, 08:10 PM
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People are just fearful of the compression ratio and the tuning, most people just crank up equal ammounts of boost and wonder why one blows and the other doesn't.
04-17-05, 08:34 PM
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No, what I'm saying is it's all due to effective compression ratio, like I said (copied from NZ, sorry NZ!), is that about 10psi on a high compression motor is equal to about 12 on a lower compression, so if you're pushing your fuel system at 14psi on a stock turbo, imagine what that's going to be like on a high compression, in terms of similar power/psi/etc, that'll be around 17-18psi as an equivalent, so you can see why people tend to overdue their systems capabilities in a higher compression setup. (Yes, some of this is more than likely wrong, but it serves its purpose just fine)
04-17-05, 10:55 PM
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Originally Posted by SonicRaT
It depends on the modifications done to each car. If you put basically the 'exact' same mods on, the 6port would be quicker. (Again, depends on how it's installed)
04-17-05, 10:57 PM
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Originally Posted by therotaryrocket
what? how about the racing beat full exhaust for turbo II is like 59 horsepower and for the n/a is like 27 hp and that is the full dual (i think thats close).
04-17-05, 11:27 PM
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Yes, it is. The 6ports had higher compression than the 4port motors, and a few other factors result in a bit more power out of the 6ports than the 4port with similar mods/setups.
04-18-05, 10:02 AM
#34
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Originally Posted by p4nc7
Supposedly the 6 port higher comp. motor is worth more power if turbo'd but yeah like sonic rat said, you probably will blow it winthin a week, unless your running like 6 psi...but who wants to run that little?
Last edited by Richter12x2; 04-18-05 at 10:05 AM.
04-18-05, 07:11 PM
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Originally Posted by Richter12x2
However, You couldn't drive the boost up like you could on a TII - so yes, the answer is an NA with a regular TII turbo bolted onto it would beat a stock TII with the same turbo. At least once you stop spinning that one tire off the line, and while the clutch and transmission hold, and don't count on stopping as fast either.
Now, for the rest of the stuff you said, almost all of it isn't very accurate.
A) Some N/A's had limited slip differentials (GTUs/GXL/88 GTU)
B) Transmission will hold just fine
C) Last I checked, quite a few N/A's had the exact same brakes/suspension as the TII
04-18-05, 07:59 PM
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Like I said, I'm new to these cars, so I can only go on what I've learned and what I've been told, and I think I came across wrong to boot. I'm not saying don't do it, because what he's talking about is almost exactly what I'm doing. But my 87 didn't come with the 4 piston front brakes, or the limited slip differential, and the main bearing on my 5 speed is already gone. I didn't mean to deter anyone, I meant it as more of an upgrade path. And I'm with 100% on the boost rates, what you're shooting for is a certain compression number (including the boost) so (warning, numerically inaccurate) if a turbo rotor makes 12:1 compression with 10 psi of boost, then a normally aspirated rotor (higher compression rotor) would only need like 8 psi of boost to make 12:1 total compression. As solid as a rotor is, with no connecting rods to fail, I couldn't see where it would care how much of your compression was because of the boost and how much was because of the rotor.
Believe me, I'm not against it at all - I've got an NA RX7 and I've got an s5 turbo sitting on the bench ready to go on it - I've got the 4 piston rotors and hubs in a box in the corner of the garage, waiting on tires for the new wheels, then once I locate a turbo exhaust manifold for the right price, I'll be right as rain if I can get confirmation the stock injectors will handle it. If not then I'll upgrade the stock injectors and get a Safc II and I'll be in business.
I don't know the particulars of the brakes, etc - but I had a feeling LSD NA's were in the minority. But once the turbo's on, I'm sure I'll be putting an LSD on it pretty soon after.
Believe me, I'm not against it at all - I've got an NA RX7 and I've got an s5 turbo sitting on the bench ready to go on it - I've got the 4 piston rotors and hubs in a box in the corner of the garage, waiting on tires for the new wheels, then once I locate a turbo exhaust manifold for the right price, I'll be right as rain if I can get confirmation the stock injectors will handle it. If not then I'll upgrade the stock injectors and get a Safc II and I'll be in business.
I don't know the particulars of the brakes, etc - but I had a feeling LSD NA's were in the minority. But once the turbo's on, I'm sure I'll be putting an LSD on it pretty soon after.
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