I was cleaning my room today and found a long lost B&B Performance Catalog. I read some of it and my jaw dropped when I got to the F-body catback page. "The 1995 LT1 for example, reaches a peak increase of 17 HP and 42 ft/lbs TQ for power you can absolutely feel". They go on throughout the article speaking of using dynos for all their testing and even have a small graph showing HP gains.

Now part of me can stomach the 17rwhp, but 42 ft/lbs TQ? Is this some kind of inflation or a terribly uncontrolled outcome? I am sure the old school guys on this site have seen this in the past, but I just cant bring myself to even understand how thats possible. All I can conclude is they are either straight lying or didnt have all their variables accounted for.

-Dustin-

 

Add a Granatelli MAF for another 25 RWHP or so and say hello to 12s. :blah:

 

Maybe but dang that is high, I don't think a cutout could give those kind of gains on a stock system. Then again it is flywheel HP.

 

Yea, I know, I dont necessarily believe what I am reading here, but I am wondering if anyone has heard this before. I figure someone with age on this site read this and its already been dicussed somewhere I cant find. If no one comes up with anything I am calling B&B today and asking them about it.

I am also not sure if its flywheel or rear wheel. The dyno they gave was rear and so are all the other numbers in the catalog.

-Dustin-

 

If those are supposed to be RWHP numbers then that is a load.

 

www.ws6.com lists a 10.4 rwhp and 7.4 rwtq gain with a borla exhaust with medium plate over a stock exhaust. So i'd say those numbers are a tad inflated.

 

Maybe the previous exhaust was partially clogged with a banana and then they installed the new cat-back and bang, you got just as much horsepower as a set of headers could add.

 

Yea, I am figuring something was definately a miss with either the dyno car or the operator. I think I'll call here in a few minutes. Maybe they accidently dropped a torquey cam into the motor between runs

-Dustin-

 

Hey, as long as the cam comes with the cat-back for the same price we are all good.

 

Give me a few weeks and I'll give you a documented answer. I had the 97 TA dyno'd a couple of months back. I just did a MAC header and an LS1 SLP Loudmouth install this past weekend. In the next few weeks I hope to get the car back for another dyno. While I did more than just a cat back system, it will give something to compare those numbers to.

Then I'll pull the PCM and send it back to Ion for a tune since he did the gear adjustment a few other things to the PCM last year.

ron

 

I just called Mike a Tech from B&B and he said all our dyno tests are done on a rear wheel dyno and that those numbers are not typo's they are the documented number that a pre OBDII LT1 puts down with their catback. I explained that I have never seen such huge TQ numbers from just a catback to which he replied: Well its all 3" tubing and mandrel bent with a less retrictive muffler.

So there you have it a confirmed 17rwhp and 42rwtq from B&B

Now everyone go buy one!!

-Dustin-

 

No thanks, their tips are really fugly.

 

And just about every decent LT-1 catback on the market offers 3" tubing, mandrel-bent pipes, and a less restrictive number and they dont put up those numbers. Maybe this is a package deal, it includes the Tornado air cleaner system as well. I have my charge card in hand, gimme the number.

 

Order Now! Toll Free 888-228-7435 (Actual B&B Number) Ask for Mike

I've never seen the B&B Crossflow Muffler but I bet my two mufflers amoung others flow a bit better. Anyways, pretty interesting information I think. And you guys thought true duals where the best power makers

-Dustin-

 

Yes I believe that is what its dubbed. Maybe the Tri part means triple the TQ? Huh? Maybe?

We are real lucky they dont list Mustang catbacks huh?

-Dustin-