OK I myself until recently was someone who added bolt on`s, exhaust, intake, headers, tune, etc., and proceeded to keep saying, 15 for that and 20 for that and 10 for that and before you know it, I was ready to declare "matter of factly" I am a little over 400 H.P. at crank.

Question, would that be correct OR, IT DOES NOT WORK THAT WAY, you cannot simply stack math H.P. ?

Only a dyno sets aside opinion with hard data,, and that is coming soon enough, maybe this Sunday. But I must say, with my 03 3.15 A4, dual cones, coupler, flowmasters, BB Shortys , and Diablo tune, the car is transformed,, it is dare I say here,, FAST, at least last night in 54 degree dense night air. It was her 'maiden run' with the shortys and it does all add up.

But am I really at about 400 H.P. now ? I know many here automatically say Shortys are worthless, blha, blha, dual cones, same, but to this I say, B.S., all my little mods have made my Vette MUCH FASTER than when I first got it. High 12`s I think ?

Flame suit,,, ON

Peace, ( I`m getting really addicted to mods, UNOICAM for my plates in future? )

Les



P.S. How do I re-set my HUD display back to just MPH and Temp showing ?

 

All you have to do is press the "page" button until it displays the temp gage.

As to the other part of your post, if YOU are happy with your Vette's performance with the mods you made, then that is all that matters.

I don't think, you can "stack" HP mods. Dynos are only good for helping to verify HP gains after adding power mods. I wouldn't put to much stock in the numbers. The performance is where it is at

 

It adds up. Unfortunatley, not to the extent one would think.

Good luck with your #'s, but remember, some cars can spank others while showing a "lesser" dyno result.

 

What you described is commonly known as "Ricer math".

Adding the manufacturer claims per mod to one grand total is complete fantasy and wishful thinking.

If a manufacturer claims their exhaust adds 15 hp, and another manufacturer says their intake adds 25 hp... I think a safe bet is that you actually gained 5-10 HP MAX from both mods COMBINED.

A tune alone would have netted you more HP than all your mods installed pre-tuned. But they will certainly help support the tune and pull better numbers.

Put all your mods together, get a good tune/dyno, and see where it really lies. That's the only way you'll find out actual numbers. But it really doesn't matter what your peak hp is if your torque band comes on really low. Theres more factors than "max hp" that make a fast car.

By the way, crank hp doesn't matter... just the RWHP does. Stock C5 (non-Z) vettes are around 300-310 hp to the wheels... automatics are a little less.

 

Press the page button to cycle through your options.

 

I would agree with the others that horsepower is not cumulative, at least in simple terms such as you described. I do however, agree that the mods that you put on your car can and do make a difference, even if it is a small one. I would never listen to a manufacturers claims, there are just too many ways to fudge that kind of data that all their claims add up to is simple marketing hype. Don't let people get you down on your mods, its you car, and there are a lot of....putting it nicely, not so intelligent people on the forum.

 

Maybe alone the Headers all theway back is a total net of 25 to 35 by models and brand. Maybe Alone a intake manifold is worth 10 to 15. When you add them BOTH you dont stack, but get pieces of the two. Usually the claims are based on a direct bolt on to a stock motor. Sometimes you need ot read the fine print like with the dynamax stuff with a *this HP claim also requires a tune and cold air intake to get this result. Whenever you make a series of mods, change the air fuel, timing, etc etc always makes the most of your part upgrades.

 

I know RWHP is the bottom line but, all cars are hyped(marketed) and sold as crank H.P., it just sounds better.

Thank you for the options go to page screen, I will try that at lunch. It defaults to tach,mph and oil temp after re-attaching the battery.

Huh, the more mods the more you love your Vette, I see/feel now.



Peace,

Les

 

Bro., speaking of mods, where can I get a Hood Ornament like that ?
Please to inform, asap. MUCH THANKS in advance,

Les

 

Les, when you get your dyno tune and your rwhp is 330 or so just at about 18% and you will be a 400 or so crank hp, you know that orange coupler I put on my Vette and my crank HP is a mere 880 so just enjoy what you have done and a number is just for bragging rights, there is always someone with a larger number

Just drive your Vette like you stole it, lots more fun that is what I do

 

Hi my friend from Texas, I admire you and especially your Vette, it inspires me. What is it like driving a beast like yours, how do you possibly keep it 'glued down' ??? What tires do you run ? What will she do the 1/4 in ?

I do drive how should I say, like, a) it is under warranty b) for all she`s worth. I maintain a very clean ride thru out and keep fluids in good order, having said that. Is it my fault the tranny broke or whatever, I think not !

I need a cam, now I hear GM will sell and keep your warrenty intack, HOWEVER you will need your GM dealer to install it, meaning of course $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $$$$$. uuhhhhh

Peace,
Les

 

the best bolt on mod: long tube headers

As long as you are happy with your cars performance then it doesnt matter what hp it puts down or how it does against other cars. Sounds like you love it, that's great it'll save you from more mods

 

Hi 50th@50 -

Well - the "aftermarketers" would love it if you believed that every incremental upgrade added x amount of hp.

In reality, as I suspect you already know based on how you asked the question, this is not the whole truth.

Want a number? Go to a shop and get a few dyno runs in.

Want to know what the car will do? Take it to a drag strip.

Ultimately, it is the package of the car, your modifications, and your driving that determine just how much performance your machine will provide.

There is a local dealer here that seems to fancy themselves as "the Corvette dealer" if you will.

best regards -

mqqn

 

i had a 2001 ta ws6 with 325 hp my friend had a 99 cobra and my other friend had a camaro forget the year but had 275 stock hp the cobra did exhaust and a chip and the camaro exhaust th/bdy power programmer and other various mods cant remember all of them but any ways the said the same thing they started "STACKING" hp and we got into a fight(friendly) so we went to the drags and settled it the camaro with the most mods and most "stacked" hp lost to both of us and the cobra took second so you see bolt ons help of coarse but you cant keep adding the hp they say you can get from the mod only the dyno will tell all

 

Les, It is like having sex driving my Blowin Vette. I remember 2 1/2 years ago when I first started driving all that new found HP is was scary. Right after I got my car tuned I went to the back roads and practiced take offs, hammering away at different speeds and different gears to learn the power band of my new setup. I have also spent time at the 1/4 and running the Texas Mile to have fun. I have only run with my Nitto NT-01s at the 1/4 track as I do not care to have the lowest ET want to keep my driveline intack. Mid 10s and in the mid 130mph on those tires and at the mile I found out what belt slip is finally after having 12k on the belt, had to shift at 6k and was only able to do a legal 180 mph

So keeping traction on the street is a challenge that I have learned with throttle modulation, with the practice I have mentioned from lots of different situations and I have had my car on atleast 6 back Texas road cruises to even get more practice. So I am at the point now that my car is ready for more surgery, I see 14lbs of boost and want to up that to 16lbs and see how close to 800 RWHP I can get with my little ole 347 and my only warranty has been my wallet

There is nothing like boost, just cost more than most think to do it right the first time and I did that from the get go. I went from my stock setup with the only mods being K&N Dual Cone Intake and Corsa Pace Cars and when I tore it apart it put down 317 RWHP with a motor with almost 30k on the clock. In went a forged motor with all the supporting goodies before the blower went on. Best decision I made was to do it that way as my Vettes motor has stayed together and still runs like a beast

Good luck with your modding future and do it right the first time whatever way you decide to go is the best advice I can give you

 

Wow that is amazing, wish I could take a ride in her. You seem to have a insatiable quest for power, to say the least. Also I see you run Nittos, that sounds good and I know respected tuner recommends the same. But you say "do it right the first time" so instead of replacing my worn old balding runcraps, I should install a cam and re-tune first for another 60 to 80 RWHP, correct ? Then some tires, especially since I just did drilled/slotted rotors and have kinda very recently addressed the 'wheels' department.

I see now where you are coming from and will follow your lead, the lead for speed. Thanks for pointing me in the right direction !

 

It's called "Ricer Math"

 

but what about the hood seal:o ?

 

My guess is you've added 15 rwhp.

The B&B shorties are a solid 8-10 rwhp gain on a mild bolt-on c5, not sure how much you'll get combined from the filters, cat-back, and hand-held tune, but I'd guess 5 rwhp wouldn't be out of the question for all 3 combined. If you want power, you wasted your money on intake, catback, and heand-held tuner.

Only mild bolt-on worth buying for power is headers. You can make your own cold-air setup and throttle bodies on a stock-ish car, smooth couplers, cat-backs (other than 3"), x-pipes, Granatelli MAFs, etc. don't do anything for you.

 

If your budget will allow heads and cam before a tune would be great and will really put some lead in your pencil Joking aside if your budget permits a set of Patroit Heads or Texas Speeds and a nice cam in the 232 590/590 in the lift area on a 112 LSA will really be sweet and you should be north of 400 rwhp with those mods and the ones you have done

Sure you could do AFR, DART, Trick Flow heads and gain a few more ponies but the cost is about double compared to the above mentioned heads and when I put together my setup only AFR were out and I chose to use West Coast Racing Blower Heads

Not trying to spend your money But speed is addictive ask me how I know