I thought you might like that pic...lol
I almost added a little pop up comic word thingy that said "Ummm look at that ***!" I didn't want to take away from the dyno sheets though...

 

Stephen, PM me with those numbers!

 

a cobra can makes over 460 with just the pulley, but:

pullied cobra and $500 port job = 501 rwhp for him. Not much money at all invested.
z06 has intake full exhaust mild cam (thats over 400rwhp). not to mention that he has a decent size shot as well which isnt needed

i doubt a 375 fd would beat either of those cars.

 

any of these guys have a stock motor?
curious what the bnrs can do with the stock ports.

so basically for me to gain 50 more rwhp to get to 400 rwhp..i need not only bnrs but water injection and a ported motor. thats what $8k right there....god. cost def aint worth benefit.

Seems like the smart thing to do is tax the twins to 16-17 psi when needed, make 360-375 rwhp and keep my 8k....no? amyone have any thoughts?

 

I want a set of bnr's, they seem to be doing very well, and Im not looking for crazy boost levels...

Awsome numbers/car man, good job!

 

I'm not running water inj.

 

u are also keeping it at 15psi right now. and only making 25 more rwhp then the stockers at said boost..and its posible that some of that benefit can be attributed to your port job and kan tune. Yes you do have room to get to 400 ..that in my mind is a given. But, what i am questioning is it worth it for us fully maxed out stock twin guys to go drop 2300 on bnrs, 500 for water injection and 5k on a ported motor to get to 400 rwhp (thats 8k for 50 rwhp). Now if my motor went and turbos along wiht it then its a good route. But i am not convinced that it is good for a guy that is solely looking to upgrade his power.

 

1st of all...Congrats AgentSpeed on you dyno numbers!

Now let's get few things sorted out.....

>>the stockers cant handle 19....i think boostn7 was replacing sets often (thats what i keep hearing anyways)...i think he will chime in here.<<
**You heard wrong..... Up to 17-18psi for a year the stock turbos lasted plenty with 65k miles on them....
Replaced the front turbo once and then again when it snapped the shaft....in a year of continous racing the car @ 19-20psi of boost......never mind the dyno pulls.
Replaced from a used set I had here with unknown mileage.

>>Isn't that John D? Anything he does has to be taken and put in a separate category. He's what they call an outlier in the bell curve lol. The general consensus is at above 15psi, you're really pushing the stockers outta their efficiency range, and making them spin much faster than they were designed for. In short, they're gonna be short-lived.<<
**No secret sauce here.....I'll duplice my setup with ease.
The general consensus should be changed to ~17psi because they will make nice gains till then !!!!!!!!!

>>No problems my ***. He went through many turbos to accomplish what he did. He also had very extensive tuning and what not. Also, I may be mistaken, but I think they were beefed up a little bit, although that may have been Kevin. From what I can tell AgentSpeed wanted the hell off they dyno so he could drive his car! lol I'm sure with a little bit of time and a constant 15 psi it would have put down more power and still be reliable.
-Alex<<
**OK...how many turbos did I replace ???? BEEFED-UP !!!!! HAHAHAHAHA !!!
My extensive tuning only really started after I ported my motor and AFTER I dynoed 402rwh and 356rwt on STOCK motor. Only then I purchased my own datalogit and FJO wideband.

>>But these are made to handle 20 - 22 psi, reliably. I think that's really the whole point. You can't run stockers reliably at 16 or 17 psi, but these babies should be breathing easy at 18 or even 19, and making lots more power AND torque than the stockers. Again, reliably.<<
**as long as they're flowing thru the factory exhaust manifolds they're limited just like the stockers!!!! Once you reach a certain amount of exhaust flow you're DONE !!! I have been there:-)


>>John D had countless hours of tuning and a external wg, along with many blown up sets of twins.

**external wastegate !!!!! WTF!!!! where are you guys getting this info from????
I tried a HKS 40mm W/G to fix my boost drop problem and it lasted one night....too damn loud and boost drop was still there after I ported my motor.
Many blown up sets !!!!! wanna stop by and count them?????
I still have my "10sec twins"...I may re-install them back in the car to prove many people wrong !!!

It's funny....
I was told, "400rwh from stock motor and non-seq twins" you're nuts and dreaming !!!
Then I was told I would never trap 125mph......
Hehehe...they were wrong again....
I trapped 125mph at least 4 times.
Steph ...wanna see a 380 SAE corrected dyno sheet @ 15-16psi???
How about 365RWT from stock non-seq turbos/motor??

I've always pushed my cars to the limit and very happy to show what this little motor is capable of.....

AgentSpeed: ENJOY your HP and get us some 11sec runs:-)

Later,

 

Glad you posted. It's nice to hear it from the horses mouth (so to speak).

I'm sure my car can produce 11sec numbers but I'm not sure I can...lol I've never been on a drag strip...

 

John, YOU are the secret sauce. You can tune like crazy, and def. know what you're doing, including any inside tricks for maintenance and reliability etc. Most of us get tuned and just drive, end of story. And we know something's wrong when something pops or smokes haha.

So you think the stockers are good for 17psi...but are the reliable at that boost level? Also, how reliable is it to run above 14psi on pump gas?

Very true. Have you ever run a diff manifold? I've been hounding Stephen forever now to get Bryan to make a custom hi-flow manifold. I bet you can get more outta the STOCKERS too w/ a better manifold, cuz I'm sure they can flow much more than we get outta them.

I think that's really the point. Not to undermine your feat, but it's just that: a feat. It's a one time (or 4 times in your case haha) accomplishment, but not something you can consistantly do, ya know? I'm sure you can duplicate your results, but can the majority of people do so? And can they do so reliably? That's really what I'm getting to. If only you and a handfull of people (or less) can do it, it's not really realistic, that's all.

 

i agree but most others dont.

 

We have a car here that made 378 RWHP on a Dynojet with stock turbos, ported motor and 16lbs of boost. The issue is that the stock turbos at that much boost create to much heat and warp the internals on the turbos. I have had a bunch of stock turbos come in for rebuilds that have had excessive heat damage from running too much boost.

Jason

 

THANK YOU Jason for pointing that out. I was starting to think if I'm the only person who still subscribed to the time-tested "RULE" about running high boost on the stock twins...

 

Sorry I am just getting this posted. I was down there in Birmingham since Thursday and just came back today. I'm dead tired, and I will post more details later, but wanted to at least add this to the thread.

The car is a '93 FD with an aggressive street port engine built by Stave Kan, with BNR Stage 3's pushing 17 PSI. A last minute decision was made to run non-sequential, rather the sequentially as had been planned, so the results are not as good as they could have been, seeing as it was a quick and dirty change. However, we still produced a strong 422 HP and 340.8 lbs of torque. Yes, those are corrected numbers.

My deepest appreciation goes out to both Bryan and Steve for their hard work in bringing this together. I had a goal of 425 HP going into this, and with a little adjusting and cleanup this number will be easily passed. Thanks again guys.

Please take a look at the 2 attachments. I will post more details soon.

Later...

 

DAMN!!! 422 @ 17psi? Thats pretty damn high. I stopped by the dyno Sunday afternoon and no one was there. I should have called Bryan...I would have loved to see that. At 17psi, those turbos aren't even working that hard. Congrats on those numbers...I bet its a total beast now.

 

Good numbers, wish I could have made it there Sunday

 

Wow, those are some great numbers!!!

 

Damn, that puts my little dyno sheet to shame...
So how do you like non-seq??? Get some rest! You'll have to give me a ride in that beast!

 

HOLY.... That's freakin amazing man. I wonder how they'll perform past the 425 mark (which is where most people have asserted the exhaust manifold becomes a restriction). But seriously man...AWESOME numbers. I bet she's a rocket!!

 

WOW!! very nice.. I wish I knew about the tuning last night.. I would of loved to see that car pull.

 

Well pulley, exhaust, intake etc. 375 rwhp will still be slightly faster than the 460 rwhp cobra.
Z06's with exhaust, intake etc make ~380-395 rwhp on average, with cams ~420/430 rwhp.

See example below.(O3 Z06)
G5X3, Comp 921 springs, LGM LT headers, ASP underdrive pulley, Shaner S2 ported TB, Borla Stingers, and Vararam 1B.
***426 rwhp 395 rwtq

Now throw in the spray and the car could make 500 rwhp. The RX-7 won't beat it but that isn't "slightly modded".

 

The latest BNR's seem to be the ticket...good numbers.

 

wow what was your a/f ratio and what gear wear you in on that pull? and how much more did they have in them?

 

were you running 93oct?

 

wow...now thats what i am talking about. awesome numbers.