V6 Turboing

[MrIcky]

Originally Posted by CamaroSpike23

not really.

everyone might talk about how they would like to build a race car or how they turned a wrench on one or two or that have taken their bolt-on car to the track once or twice, but there arent a lot of members out here who have built their cars into full/near-full race cars.

I was kidding .

[CamaroSpike23]

Originally Posted by MrIcky

I was kidding .

I'm not.

[BowtieGuy]

Spike doesn't kid. He full on goats.

[Mr. Wyndham]

Originally Posted by CamaroSpike23

but there arent a lot of members out here who have built their cars into full/near-full race cars.

They're not members, because they're too busy building the cars....

I'd bet that a lot of you wouldn't believe the time and effort that goes into building a true race car. A friend of mine builds F1-style Indy cars...sub 3-second zero-to-sixty, etc, etc...FROM SCRATCH. He machines all his own parts, the only thing he buys as a pre-built item is the steering rack, electronics, and the engine. Everything from the frame to suspension is hand-crafted...it's astounding.

[MontyCarlo]

Originally Posted by Dragoneye

They're not members, because they're too busy building the cars....

I'd bet that a lot of you wouldn't believe the time and effort that goes into building a true race car. A friend of mine builds F1-style Indy cars...sub 3-second zero-to-sixty, etc, etc...FROM SCRATCH. He machines all his own parts, the only thing he buys as a pre-built item is the steering rack, electronics, and the engine. Everything from the frame to suspension is hand-crafted...it's astounding.

Does he own a machine shop and build the cars in his spare time there, or is that his actual job?

[Mr. Wyndham]

Originally Posted by MontyCarlo

Does he own a machine shop and build the cars in his spare time there, or is that his actual job?

He's a full-time student, and it's a hobby of his. He uses the machine shop at school. Everytime I help him turn a part, or mill something...it always boggles my mind how much time he spends on this....

[MontyCarlo]

Originally Posted by Dragoneye

He's a full-time student, and it's a hobby of his. He uses the machine shop at school. Everytime I help him turn a part, or mill something...it always boggles my mind how much time he spends on this....

Wow. In job interviews he can just skip the education background and say "come with me to the parking lot, I want to show you something!"

But back on the topic of turbos, I have a technical question. They say superchargers burn more fuel because they're powered by the engine, and turbochargers are basically working from free energy in the moving exhaust. But by harnessing the exhaust they're backing up the pressure, which I would think makes the engine work harder just like a supercharger does. So why is it one's bad for mileage and one's good?

[Mr. Wyndham]

Originally Posted by MontyCarlo

But back on the topic of turbos, I have a technical question. They say superchargers burn more fuel because they're powered by the engine, and turbochargers are basically working from free energy in the moving exhaust. But by harnessing the exhaust they're backing up the pressure, which I would think makes the engine work harder just like a supercharger does. So why is it one's bad for mileage and one's good?

Most modern superchargers won't decrease fuel economy noticeably...unless you're putting eleventy-billion psi . Some, like the new EATON TVS units, can actually increase mileage, like turbos. You are right that turbos create increased back pressure, which means the engine has to work harder to push air out...but it's less 'extra' work than it takes to turn a belt-driven supercharger, so generally they're more efficient.

Plus....turbos make very little boost down low, where most people rev when they're putt-putting around town -- but there's always a gentle pressure in the system -- this helps eliminate pumping losses (the work the engine has to invest in drawing air in), increasing efficiency and mileage when you're not racing.

But if you hammer on either one, they'll both drink gasoline like an alcoholic at a bar.

[MontyCarlo]

Great answer. Thanks! I'm a mechanical engineer and I spend a lot of time looking at energy consumption and air flow, so I love getting into the details of how things like this work.

[69 Camaro 09]

You guys are amazing, so helpful.

i have a couple questions for the guys that really know what they are talking about,

1. is it to early to ask how much psi is safe to push into the L99 (keeping stock internals)
2. what rwhp will put the automatic 2SS into around 11.7~
3. what other modifications will have to be done to the car, if any (brakes?suspension?etc?)

(Oh, and i want to keep it cheap and daily drivable) (Cheap being < 10k after install)

Edit: I am very sorry that i posted this in the V6 section, but this thread just seems to have a lot of legit guys replying to it, and there are no good threads like this in the V8 section.

[THE EVIL TW1N]

Originally Posted by 69 Camaro 09

You guys are amazing, so helpful.

i have a couple questions for the guys that really know what they are talking about,

1. is it to early to ask how much psi is safe to push into the L99 (keeping stock internals)
2. what rwhp will put the automatic 2SS into around 11.7~
3. what other modifications will have to be done to the car, if any (brakes?suspension?etc?)

(Oh, and i want to keep it cheap and daily drivable) (Cheap being < 10k after install)

Edit: I am very sorry that i posted this in the V6 section, but this thread just seems to have a lot of legit guys replying to it, and there are no good threads like this in the V8 section.

2. This question is WAY too vague to answer. Theoretically, you can probably do it with the stock rwhp if you get the car light enough. Are you planning on running slicks? At the stock weight if your going to run street tires, you will probably need ~500-550 rwhp. With a good tire, you will need MUCH less than that. Probably ~450 rwhp.

[69 Camaro 09]

stock weight with drag radials. sorry for being vague, how can i narrow it down a little?

[THE EVIL TW1N]

Originally Posted by 69 Camaro 09

stock weight with drag radials. sorry for being vague, how can i narrow it down a little?

with drag radials (~1.8-1.9 60') you will probably need roughly 420-440 rwhp.

[CamaroSpike23]

Originally Posted by THE EVIL TW1N

with drag radials (~1.8-1.9 60') you will probably need roughly 420-440 rwhp.

slap on a supercharger and go to town. in 11 sec. lol