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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 07-02-2020, 07:22 PM   #29
Z06ZN6
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Originally Posted by Thefalls View Post
The perfect amount of power is the amount you can readily use without reaching your limitation as a human/driver.

The moment you cant exploit all the horses you got, thats the no go zone.
Agreed. Computers let everyone think they're a bad ass inside the traction circle, until they step out and the step function of skill governs.
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Old 07-03-2020, 12:40 AM   #30
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The right amount of power should be the one that not stretches much the manufacturer limits (engine, transmission, etc). Based on engine simulations it was rated about 280 at the crank.
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Old 07-03-2020, 06:37 AM   #31
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I've been making 300whp - 250wtq for 3 years straight and I love it and never felt the need for more. Now one time i drove a headers/e85/tune 86 that made 197 whp -150 ish wtq and it was such a horrible experience because I couldn't tell the difference between stock when i jumped back in my car immediately and that was prior to my turbo.
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Old 07-03-2020, 08:52 AM   #32
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There is a reason AVO, Edelbrock, Jackson Racing, and several others converge to almost same peak power. The cost of "reliable" power increases exponentially after the level of 280whp. Boosting above that power level, buying a Corvette (or whatever) is a better option if money, time, enthusiasm, and talent are limited.
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Old 07-03-2020, 11:21 AM   #33
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I'm at around 345hp at the wheels on E85 with a Harrop, and around 305hp at the wheels on 98 (but Oz fuel ron is rubbish).
Spent a lot of time and effort to keep the weight down, I only run 7" rubber, and the nannies are off permanently (except ABS)....so even at 305hp, it's a huge amount of fun. 345hp is a bit more fun... but its not exponential. But it did cost a lot of extra money to raise the standard of the other components in the car up to the performance/safety tasks required.
Personally I cant really see too much point in much more power than that for the road in these cars, I tend to agree with others who feel that if you want mega power, then these cars aren't the best way to get it... or to use it.
And as ever (annoyingly for my fragile ego) its the ability of the driver that actually determines how "quick" a car can be...
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Old 07-03-2020, 11:40 AM   #34
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A more subjective question has never been asked.

What's the best color?
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Old 07-03-2020, 12:15 PM   #35
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I'm not concerned with hp numbers, but rather the feel of acceleration. Getting rid of (or at least mitigating) the torque dip, improving throttle response, and smoothing out the upper rpm ranges makes this car plenty fun.


I've seen people accomplish the aforementioned with a tune, drop-in filter, and E85, or via flash, filter, and header.
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Old 07-03-2020, 01:23 PM   #36
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What's the best color?
42
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Old 07-03-2020, 06:42 PM   #37
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42

Ah yes, 42 is always the answer to Life, the Universe and Everything.
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Old 07-03-2020, 07:36 PM   #38
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I'm not concerned with hp numbers, but rather the feel of acceleration. Getting rid of (or at least mitigating) the torque dip, improving throttle response, and smoothing out the upper rpm ranges makes this car plenty fun.


I've seen people accomplish the aforementioned with a tune, drop-in filter, and E85, or via flash, filter, and header.
I wanted FI but did the aforementioned mods with the God of tuning at the keyboard. I have no need or desire to go FI now. the extra power just seems to fit the chassis perfectly. I'm track focused but if I was a stoplight warrior I may think differently but if I was I'd just get a Mustang or something.
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Old 07-03-2020, 11:31 PM   #39
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Tldr.

The gold standard for a sports car is a 1:10 power to weight ratio. So 280 for a car that weighs 2800lbs
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Old 07-04-2020, 03:42 AM   #40
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For me this is an amount of power the car can put down when you want it to, but allows you to overpower traction when you choose. I don’t know what that is. My car is stock with stock tires.
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Old 07-04-2020, 05:48 AM   #41
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Like everyone said above the perfect number seems to be 280. I will myself start with headers, exhaust, drop in filter and tune and then measure my satisfaction. I may then install a supercharger and get in retuned. No way I'm going further then that, it's probably just asking for trouble and completely changing the nature of the beast.
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Old 07-06-2020, 09:58 AM   #42
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Uhhh, some points:


1) quoting peak RWHP numbers mean nothing. My Vortech kit probably makes around 260-270rwhp, but I guarantee a positive displacement supercharger making 260-270rwhp will feel faster/be faster. Area under the curve.


2) Related to #1, I guarantee you between a torquey PD unit and a centrifugal unit, the PD unit will put more stress on the motor. Especially in the lower RPM register, stress on the con rods is amplified in lower rpms.



*edit* sorry forgot to mention turbos, while you can't quite shock the rods like with a PD supercharger, turbochargers can make tons of torque, even low end if they're not huge, so they sit somewhere between PD and belt driven centrifugal setups. You can lug a smaller turbo at 2500 rpm under load at highway speeds and cause excessive stress on your rods. Also forgot to mention: regarding superchargers, typically put a higher stress on a motor due to drive losses. I.E. if you're seeing 200 lb/ft at the wheels at 4000 rpm, the motor is working harder (higher load) to spin a supercharger to produce that vs a turbo. An example would be the big Sprintex 335 units, take a lot more power to spin - they can produce big power but typically put significantly more strain on the motor.



3) How do you drive? Do you track? Do you hoon often? Power shift, or granny shift? Driving style/environment plays a major role in drivetrain life. How do you maintain your car? How often do you plan to change the oil post FI? Every 5k or every 15k? Factory service intervals no longer apply when moving beyond the design parameters of an engine/drivetrain.


4) Planning to do the proper supporting mods to manage heat? Any time you push a motor beyond its original design parameters, you're playing a game of risk management. Some motors hold up better than others. If you're a relatively sane street driver that likes to have some limited fun, and live in a relatively temperate climate, probably don't need much in the way of supporting mods. If you track regularly, drive hard in hot climates, extended high speed runs, etc. you will need to spend quite a bit more on heat management. Be attentive, pay attention to your oil levels, oil pressures, blow by in your catch cans (change them periodically), belts, wastegates/manifolds, and if you see anything concerning while driving be prepared to shut down rapidly and call a tow truck to minimize collateral damage in a failure. Oh, and do you live in an emissions conscious state?



5) How much power do you really need? Do you primarily track the car? Do you live in a less populous area with wide open roads? You can add plenty of power. Do you live in the northeast, plenty of cars/bikers/walkers on the roads, lots of narrow blind curves? Fun, but with my 'wimpy' Vortech setup I can't really come close to pushing things on public roads, it is more than enough to have fun. Terrain makes a big difference in how you can use the power on public roads. Here in CT thrills are zipping around curvy roads early in the morning, in the midwest thrills are flooring your 650hp Z06 on a nice open road



6) Do #1-5 seems just way too complicated and a pain in the butt? Do you just want to have fun? Buy another car that's already fast from the factory and leave it. Do you like tinkering, experimenting, take pride in making your car unique, like to live dangerously? Then this car, with a 400rwhp turbocharger strapped to it, is the car for you. It's visceral, yet daily-able. It has a semi-useable backseat. It can be fast and really fun to drive. It looks beautiful, especially with a few tasteful cosmetics and coilovers.



Hope this helps!

Last edited by bfrank1972; 07-06-2020 at 10:43 AM.
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