Latest Callaway B2k Dyno sheets....

[SurfnSun]

Ok guys, I finally got my dyno sheets uploaded after the recent exhaust work I had done in Nov. ( the sheets blew out the window @ 90mph )

Anyway you can see how much of a difference the large exhaust makes on a turbo car. The first sheet is my baseline dyno of which was a Callaway upgraded Wonderbar, no cats, AFPR and boost set a ~12.3lbs or 55" hg. Again the intercoolers get blazing hot after 2 runs.

The next dyno sheet is my current set up with everything the same add a 2 3/4" Power Effects exhaust system. As you can see the boost comes on A LOT faster with the larger exhaust....which explains the fart cans on the import turbo cars. Uncorrected numbers were 450+rwhp/600rwtq on a 70 degree day. I think these are more than accurate of what the car would do moving down the road with air traveling over the intercoolers.

The last sheet is a comparision of boost set at 10lbs or 50"hg compared to ~12.3-5lbs or 55-56"hg. If I close my PE mufflers down the motor feels really choked and I only get around 50-51"hg.

The next step is to do an Extrude Honed Accel TPI base and AZspeed/TPIS runners.

 

[*89x2*]

Josh, I am glad to see your sheets finally posted - GREAT NUMBERS :cool



Your car makes the power buddy - next time, I drive - errr, fly!

 

[*89x2*]

Surf, I forgot to ask...


Do you believe the exhaust or the Wonderbar helped the most??


I am strongly considering putting Megaphones on my car however, a little birdie told me that someone from my house inquired about a Wonderbar - and it wasn't me who made the call

 

[SurfnSun]

Dude, your wife rocks.

Well if you look at the numbers from Erics car which I believe were in the 340-50rwhp range vs my 406rwhp number, clearly the Wonderbar will provide more power.

But wait...the 113 heads on the 88+ cars are superior to the early L98 heads too. Hmmmm

Now if youre considering a catback meg system the wonderbar is easily going to be the winner. If you go the McArdle exhaust then the show down would get interesting.

My thought, you've still got to get the air to the motor before you can get rid of it. And at $1200 vs the cost of the Callaway true dual megs...the bang for the buck winner and probably overall hp winner is the Wonderbar by a landslide.

If I were you Id get the Wonderbar, two Dynatech Powercats[(150/each from Summit, and they have the exact same guts as a Random Tech) or no cats at all] and let the good times roll.

 

[Aurora40]

Uncorrected numbers were 450+rwhp/600rwtq on a 70 degree day.

Dude, that is ridiculous!!!!! Looking at that graph, you have over 400hp at the wheels as early as 3700 rpm, and over 400hp over a window of about 1500 rpm! That's :eek

And all that is just from basically intake/exhaust changes external to the engine, and some tuning for it? That's awesome!

Just wondering, have you taken it to the track? It might be hard to launch, but I'd love to know what it traps at. Also, do you have any concerns about the internals, especially the con-rods, being up to the task of handling ~700 lb-ft of torque?

That power is awesome! :BOW

 

[*89x2*]

Aurora, are you still in search of a pristine Callaway??

Just wondering how the Corvette hunt goes

Dude, that is ridiculous!!!!! Looking at that graph, you have over 400hp at the wheels as early as 3700 rpm, and over 400hp over a window of about 1500 rpm! That's :eek

And all that is just from basically intake/exhaust changes external to the engine, and some tuning for it? That's awesome!

Just wondering, have you taken it to the track? It might be hard to launch, but I'd love to know what it traps at. Also, do you have any concerns about the internals, especially the con-rods, being up to the task of handling ~700 lb-ft of torque?

That power is awesome! :BOW

 

[Aurora40]

Aurora, are you still in search of a pristine Callaway??

Just wondering how the Corvette hunt goes

Hey Chris, yeah I'm keeping an eye out. I'm gonna test drive some other ones too just to get a better feel for what I want. There's an LT-4 at a CarMax I'd like to take for a spin. There haven't been any Callaways that have been remotely local to check out for comparison-sake.

I still think about that NJ car, though... Buying a driver car will encourage me to drive it more. I think cars like that should be driven (maybe not to the grocery store, but you know what I mean), but when stuff is too perfect I get all worried about messing it up. That car is certainly in decent shape and looks great from a few feet back (the paint was very red and glossy), but the cracked paint on the bumper and such mean who cares about rock chips?

On some level though I think waiting a bit and getting a new car is the only way to get perfection, and I also think a CTS-V would be ultimately more practical. But the pre-91 C4 body style will always call to me. Maybe it's best to just answer that call... I need to check out a few more alternatives and think about it more, though.

I also need to drive the Aurora more. It's fun to drive (obviously a different class of car than a 'vette) but I barely drive it because I don't like it to get dirty and worry about the always rock covered NoVA roads. Seems like everywhere here has dump trucks or construction going on...

I also think about the two guys here who had rods fail, and I wonder if a Callaway would mean very expensive repairs in the future. But of course any car can fail, but you want the odds on your side. ZR-1's seem like they might be more reliable, but an LT-5 != TT L98... Then again, how much power do you really need? But the way that NJ car accelerated on the highway was pretty intoxicating... And that quiet turbine spoolup sound as the speed increased was pretty sweet. Like I said, lots of things to think about and consider.

 

[SurfnSun]

Dude, that is ridiculous!!!!! Looking at that graph, you have over 400hp at the wheels as early as 3700 rpm, and over 400hp over a window of about 1500 rpm! That's :eek

And all that is just from basically intake/exhaust changes external to the engine, and some tuning for it? That's awesome!

Just wondering, have you taken it to the track? It might be hard to launch, but I'd love to know what it traps at. Also, do you have any concerns about the internals, especially the con-rods, being up to the task of handling ~700 lb-ft of torque?

That power is awesome! :BOW

thanks More importantly than the rwhp I have over 500rwtq from 3100-4500rpm

Im not worried about a rod going thru the side of my block b/c I am overly cautious about detonation which is what causes that. Just a mix of good gas and not pushing the limits is more than enough to protect the motor. Im still running stock boost levels to get that power. 55-56"hg. Ultra Slow has run his car at 14lbs boost for a LONG time running B32 leaded gas with no problems.

Remember Im still running the stock TPI so no intake work here just a wonderbar.

As far as a ZR1 vs Callaway goes...Right now there is no comparison between my car and a stock ZR1. I recently ran an 04 Z06 from a roll and spanked him so hard he went home with a blistered azz. A stock or mildly modded ZR1 would be about the same. But on to the reliablilty issue....the winner is about as clear cut as a race would be, but this in favor of the ZR1. I dont' drive my car in really hot weather and I certainly dont beat the hell out of it everytime I take it out. You can do that with an LT5, no worries.

If you want a daily driver, get a ZR1. If you want to go really fast occasionally get a B2k. But whatever you get don't expect a new car, thats illogical as the newest of these cars are going to be 11yrs old now. And I can tell you first hand a car that has sat vs. one thats been driven is going to have more issues.

 

[Aurora40]

As far as a ZR1 vs Callaway goes...Right now there is no comparison between my car and a stock ZR1. I recently ran an 04 Z06 from a roll and spanked him so hard he went home with a blistered azz. A stock or mildly modded ZR1 would be about the same.

Definitely didn't mean to imply they would be the same on the power front, just that they are both cars that are fast and should be fun to drive.

What kind of tires do you have? I would think a Z06 might have you from a slow roll just because he'd have a lot better traction. I bet your car can light 'em up pretty good even in 3rd! 275's are not enough bun to hold all that meat in your dyno graph!!!

 

[SurfnSun]

Definitely didn't mean to imply they would be the same on the power front, just that they are both cars that are fast and should be fun to drive.

What kind of tires do you have? I would think a Z06 might have you from a slow roll just because he'd have a lot better traction. I bet your car can light 'em up pretty good even in 3rd! 275's are not enough bun to hold all that meat in your dyno graph!!!

No I know what you meant. They are just two totally different cars. I have a friend with a 600hp Doug Rippie ZR1, 2 Callaways, and always a new Vette in the garage. His favorite car? The B2k...his favorite race car? The ZR1 b/c its so fast and reliable. They are both fun to drive, but b/c of the massive torque the b2k is simply more fun IMHO...it gives a rush that takes your stomach away.

Yes you are correct, low speed take offs are generally illicit, lots of tire spin. The night I took 89x2 for a ride we were on a really rough asphat(the road itself was smooth and flat, but the surface was very grippy) road and the tires stuck great for the most part, spinning minimally for the car. It did pin us in the seat. Ive been in a 500rwhp ZR1 and it didnt have "rush" feeling. Dont get me wrong it was FAST but just not the same.

 

[*89x2*]

Awesome!

..low speed take offs generallyillicit lots of tire spin. The night I took 89x2 for a ride we were on a really rough asphat(the road itself was smooth and flat, but the surface was very grippy) road and the tires stuck great for the most part, spinning minimally for the car. It did pin us in the seat.

Surf - that is a great word, very descriptive for the situation that night in relation to the speeds we saw :eek

Source: Merriam-Webster Dictionary of Law, © 1996 Merriam-Webster, Inc.

illicit
adj 1: contrary to accepted morality or convention; "an illicit association with his secretary" [ant: licit] 2: contrary to or forbidden by law; "illicit trade"; "an outlaw strike"; "unlawful measures" [syn: illegitimate, outlaw(a), outlawed, unlawful]