Let me start off by saying DJAuggie.

Eric, I saw your thread on 3si. But I can't comment on there because:
A) I'm an @$$hole.
B) I don't have a 10,000+ posts.
C) I'm not fast.

Anywho.

I'm not really sure, but I can see an endless debate coming about TDO4 not having lag, timing effects, and 50+ people telling you to gut your cats.

Now that that has been said. gut your cats.

Also, timing is your friend. Retarding timing WILL spool your turbos faster. Advancing your timing WILL NOT spool your turbos faster.

The only problem with the above statement is it's not quite true.

While retarding your timing will give you hotter exhaust (known fact. don't argue with that one, you'll lose.) It will also decrease the power your pistons are creating with each stroke, thus slowing your engine's ability to raise rpm in a timely manner (horsepower) and your car will "feel laggy."

By throwing in some race gas, and advancing the timing bawls out you'll have less spool on the turbo. but you'll feel faster. The car will not seem as doggy. The car will have cooler exhaust gases, but the spark will happen where it should and thus the piston will recieve the power when it should, thus creating more power, and getting you into the "meat" of your turbo range sooner.

you could also go AEM, or do a stutter box. both these ways add gas to your exhaust and then ignite it before it hits the turbine blades. this will give you boost off the line no matter what.

Or, you could just keep your RPM up all the time. and also raise the RPM limit so you can take your engine up to 8 or 9k rpm. This will give you much more range where your turbos can be spooled.

In closing I would just like to say:
DJAuggie, DJAuggie, DJAuggie.

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Retarding your timing WILL NOT GIVE BETTER SPOOL! Who the ethiopian marsupial made that crap up?



This guy is correct. In all honesty though, 9B's spool very fast if that's what you want.

Don't be a coward TTAngel.

Greg it has to give you better spool. there is more energy for the turbine blades to use. unless you are retarding the timing so much you are not getting complete ignition of all the fuel/air.

the problem comes with the fact that at any given boost level you are making less power, because more timing is more power. (at least, again, to a certain degree. too much advance and your not adding power anymore either)

EDIT: though, I agree that if you want less lag, you need to add timing.

Also agree with nos, stroker, blah blah blah. but that's not as easy.

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There's more heat energy because the spark happens later in the cycle, but like you said:



therefore, it negates itself.

Also, if you want less lag you want to run with no intercoolers.pipe straight from the turbos to the plenum. do this with metal pipes that will not expand. also constant radius turns, and as few as possible.

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2 points for the Evil Baby Sitter.

On my DSM, metal innercooler pipes made a noticable difference in throttle responce. Bigger gains were had with a better innercooler.

However, guys have said the DNP innercooler pipes made almost no difference on their 3/S. I have no 1st hand experience with metal innercooler pipes on a 3/S.

bigger gains should be there with a bigger intercooler, but it takes time to pressurize that volume of space. if you were going for a "lagless" system you would want no intercoolers and short pipes.

this would shoot hot air into your engine, however.

everything is a trade-off.

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DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.
Yeah, I'll running speed density. I have the MR gears and timing advance down low to make it *feel* less whimpy of boost. I ALREADY have a stillen w/gutted rear precat. I was contemplating switching to ATR and DN precat elims even though its a big waste of money. Call me a pu55y, but I'm big on feeling the power (read torque) when I press the "go" pedal. I also thought about using: DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.DJAuggie, DJAuggie, DJAuggie.

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I've got a set of DNP precat elims... they work.


Then don't race anyone starting at 2k rpm and you won't have to worry about it.

more lage means more boost when it finally hits. I'm ok with letting some one beat me for the first little bit. it makes them feel like they had a chance.



mwa ha ha ha ha...

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No no no...

I didn't say bigger. I said better. As in one with less pressure drop on the outlet side. That's the kicker.

right, but if he jams a DSM intercooler in his car (the better ones ) they are bigger also.

every "better" intercooler for our cars is bigger. the stock intercoolers were as undersized as the turbos.

they did the job, but left some on the table.

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Yeah, I gots the mots (dsm intercoolers).

I know that bigger turbos = more fun, but I'd still like to minimize the gay wait period before that fun. I never said that the precat elims don't work, just that they prolly aren't worth the cost ($489 + coating) and getting an ATR downpipe so I can run them.

Thats right kid, this guy got a supra pump used (once by a shop) for $128 shipped. Yeah, it pays being a MKIV supra owner these days....

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Ya know, back in my DSM days, I learned to just drive around 3.5 to 4 grand all the time. This way, the power would be there when I needed it.

Yes. that is the way to do it.

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[QUOTE=DJAuggie]Why do we have so many people with opinions and no real evidence? I don't know the physics behind it nor care. I advance timing and my spool went down 500RPMS with the 16Gs and added 1 deg gave me about 100 with the 15Gs both datalogged.

I am not the first person to suggest/say that advancing the timing gives better spool guys.[/QUOTE]

Another intelligent post from the 3/s god know as DJAuggie.
If he doesn't know or care why does he "speak".
Does advancing timing help the spool or not? He can't even make up his own mind with his own data.

Just advance the timing and shut up.

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