1991 BBSC 5 psi dynoed....

[snakey]

I went and dynoed my BBSC 5 psi 1991 NSX today...The car has the BBSC 5 psi supercharger with the stock SS piggy back tuning and an exhaust and untuned 85 wet shot of nitrous..Other wise the car is stock power wise...

I was told by many to not even drive the car till I got a stand alone ems and tune...But i had to know the base line numbers!!!!!!!!!

For referance on this same dyno my other vehicles dynoed these numbers...

-98 V6 camaro supercharged..217 rwhp SAE and 14.9 at 93 mph

-2004 heads and cam auto C5...378 rwhp SAE and 12.6 at 112 mph

-1999 Viper with tune and bolt ons...450 rwhp SAE and 12.2 at 121 mph

-2003 Viper with mild bolt ons...470 rwhp SAE and 11.8 at 122 mph

-1991 NSX with 5 psi BBSC and exhaust...310 rwhp SAE and 13.2 at 112 mph


I think for only 5 psi and the crappy SS box tuning she did pretty good since they only dyno around 230 rwhp SAE stock....

Look for AEM/9psi/air to water kooling in a month or so..Shooting for 400 rwhp SAE

 

[scorp965]

Re: ....1991 BBSC 5 psi dynoed....

Does the car have headers? Most 3.0L cars dyno around 265-275rwhp with the basic bolt ons, that is headers, exhaust, and a unfilter intake element.

If we look at the boost equation:
(NA power) * (1 + (5 psi to BAR)) = supercharged power

We get:
270rwhp * 1.345 = 363.15rwhp

This is assuming an absolutely efficient forced induction system, an engine which responds favorably too boost, and a tune that is just as efficient as the factory tune.

Your peak numbers should be comparable to other superchargers running the same boost level, they will have an advantage in the midrange, but up high your BBSC is making its power. I would assume a BBSC would perhaps even have a peak power advantage, given its dramatically smaller compressor turbine.

When I had my GM SC running 6psi, I dyno'd at 349rwhp, uncorrected.

The variables are your engine's health, how generous the correction factor is, and how good the BBSC split second boxes are. I am not sure I would be reassured by the numbers you posted, as 5psi is substantial.

As for 400rwhp target... I think you will need a bit more than some tuning and 4 psi to pickup 90rwhp on this car... I am also nervous (for you) about running a substancial nitrous charge without any kind of FPR etc. for it; if you do install an AEM EMS, it allows for a switch over map while the nitrous shot is being run, its a powerful improvement that will produce power, and dramatically increase safety for your engine. Its about $2k once your done and tuned, but its $2k you need to spend immediately, and will be glad you did, once the parts are installed and tuned.

The nsx engine is very well-built, and they last forever, but you could be causing damage by running it in its current state that will result in either reduced performance, or catastrophic engine failure, later down the road.

If I were you, I would park the car, call Chris at SOS, order up an AEM, and research local tuners.

 

[otto_joe]

Re: ....1991 BBSC 5 psi dynoed....

I think that the dyno numbers snakey got are pretty much spot on.

Here's some good info on compressor efficiency and intercooling.
http://www.lextreme.com/icvsnic.htm

I think an AEM, an intercooler, a slight boost increase via a pulley swap, and some good tuning would put him at 400rwhp.

As scorp mentioned headers and exhaust provide good gains on the older cars.

Otto

 

[snakey]

Re: ....1991 BBSC 5 psi dynoed....

To me the numbers are spot on...

These cars only dyno around 230 rwhp stock. Even the 2002's only dyno around 255 rwhp stock...

The car only has the BBSC and NUR exhaust...It has a stock header that at the time has a slight leak that may be causing a +/- 5 rwhp SAE differance but nonthing substancial...

It is also important to take note that I didnt allow the vehicle to kool down any on the dyno and I told the facility that no fans would be used....This was simply a quick base line dyno for me and nonthing more...I knew the car was gonna be in the low 300's and as you can tell from my other vehicle numbers...Weather I hit 310 rwhp or let her kool down for 30 minutes and hit 330 rwhp..Well eighter way it was low 300's to me....

My 99 Viper dynoed 435 with a warm engine and the 450 with a kool engine...So again i could have dynoed atleaste 320 rwhp with a kool down..But why waist my time for just base line numbers????

After theAEM/9psi pully/air to water kooling system and headers...Well she'll wait 45 minutes between multiple runs....

And I dont think she'll hit 400 rwhp SAE eighter..I think she'll be 400 plus rwhp..

Ive read many stories of guys running 8 pound BBSC's with the SS box and not doing better than 350 rwhp....Then they get the AEM and BAM...400 rwhp...

Im gonna be running a interkooled 9 psi with the AEM....She's gonna be beastly...

Their was a corvette guy their with a 2004 auto C5 who had some bolt ons who kinda smurked at my supercharged dyno number of 310 rwhp...I thnk he dynoed around 330 rwhp with very light mods...

I didnt say anything, and justlet it be....But he's forgetting a few things...

-04 auto C5=3312 pounds ( I owned one)
-91 NSX=2985 pounds ( with all my stuff on it about 3100 pounds)

-04 C5=2.73 or 3.15 gears
-91 NSX=4.06 gears ( am i correct on that?)

-my 378 rwhp auto C5 trapped 112 mph ( I could hook this car better)
-my 310 rwhp NSX trapps 112 mph ( Still working on the launch)

So Im 200 pounds lighter and have much more agressive gearing....I would stump him...But a dyno dosent tell you all that. it only post a number...

 

[DocL]

Re: ....1991 BBSC 5 psi dynoed....

Don't take this the wrong way, but that last post was terribly difficult to read. If English isn't your first language I can understand, but before you post it's very easy to copy the message into Outlook Express and do a spell check, and then paste it back into your message box. No offense, but your spelling takes a lot away from the meaningfulness of your post. For example what is "eighter"?

 

[docjohn]

Re: ....1991 BBSC 5 psi dynoed....

Don't take this the wrong way, but that last post was terribly difficult to read. If English isn't your first language I can understand, but before you post it's very easy to copy the message into Outlook Express and do a spell check, and then paste it back into your message box. No offense, but your spelling takes a lot away from the meaningfulness of your post. For example what is "eighter"?

Uh don't be a player eighter! Buy her dinner first before you .....:tongue: :tongue: :tongue:

 

[peiserg]

Re: ....1991 BBSC 5 psi dynoed....

i was going to spell check his entire message like I usually do, but it was too long and I don't have the energy to be condescending right now.

 

[snakey]

Re: ....1991 BBSC 5 psi dynoed....

Guys..Ive been a member of many many many differant car message boards...If you care about spelling when talking about dyno's and acelleration comparisons..Well your simply in the wrong hobby. I happen to work at a private education facility with many top scholars from across the globe....

I can recommend some great literature classes for you if you care so much about spelling/grammar ect. on a car forum...LOL....I have to deal with that crap on a daily bases at work..When Im hear can i please just be a car guy?????

THANKS

 

[docjohn]

Re: ....1991 BBSC 5 psi dynoed....

We are all car guys too with enough decorum to proofread our work.If you are what you say then I doubt you would want your students writing as you did above Most of my posts start out looking like yours until I read over them,,,are we Kool?:tongue: BTW this will be the last time I bust your chops about this,as I'm sure you are thinking.....life is too short.:smile:

 

[RPM217]

Re: ....1991 BBSC 5 psi dynoed....

We are all car guys too with enough decorum to proofread our work.If you are what you say then I doubt you would want your students writing as you did above Most of my posts start out looking like yours until I read over them,,,are we Kool?:tongue: BTW this will be the last time I bust your chops about this,as I'm sure you are thinking.....life is too short.:smile:

wAt u tAwKin boUt wILisS, I uNErstUd iveRyTiNg hE SeD!!
(and I ain't no teacher)

 

[DocL]

Re: ....1991 BBSC 5 psi dynoed....

Actually, we care about you blowing up your engine or crashing the car into a wall. And what private education facility do you work at; the jail? :biggrin:

 

[snakey]

Re: ....1991 BBSC 5 psi dynoed....

Actually, we care about you blowing up your engine or crashing the car into a wall. And what private education facility do you work at; the jail? :biggrin:

Come on man..im not gonna ask you what you do or where you work????As it's none of my buisness...But seriously..too me spelling on these boards just dosent matter....Where not a bunch of snobs driving 175-500K cars here who have to prove how important/prestigous we are..Are We???...where driving 25K-100K Hondas...LOL

 

[RPM217]

Re: ....1991 BBSC 5 psi dynoed....

Come on man..im not gonna ask you what you do or where you work????As it's none of my buisness...But seriously..too me spelling on these boards just dosent matter....Where not a bunch of snobs driving 175-500K cars here who have to prove how important/prestigous we are..Are We???...where driving 25K-100K Hondas...LOL

Learning how to write and express yourself clearly and precisely is not a sign of snobbery, and should have nothing to do with the price you pay for a car. I don't care if you drive a twenty year old beater, or a day old Lambo, you can't buy class with the car you drive, but you can show class in very simple ways that don't cost a dime. I don't think that name calling, where you work, how much you earn is the point, we take pride in our cars can't you take pride in the way you come across to others?

 

[PhiAlpha44]

Re: ....1991 BBSC 5 psi dynoed....

Personally I think you should make your car as "beastly" as possible. Then go street race that guy with the Vette that smirked at you. Try to keep her out of the wall. And don't whine about spelling. Just press the little spell check button. It's really simple and it separates our forum from the other crap on the Internet.

 

[snakey]

Re: ....1991 BBSC 5 psi dynoed....

OH MY GOSH..No wonder so many NSX guys Ive come across say they never post here..Some of you are just rediculous...The viper cost 84-88K brand new and their have only been 25K produced world wide since 1992...

the NSX cost 89-92K brand new and their have been 19K produced world wide since 1991...

I guess that extra 6k vipers produced and extra 6-8K to have a NSX over A viper explains why I never experienced this type of BS on Viper Alley...The NSX just must be a differant class of people hugh???LOL...

Spell check seperates us from other forums...???????

If you wanna readabout my base line results at 5 psi Vrs what im gonna run with an interkooled 9 psi tuned with the AEM then please stick around..If you wanna tell me how a guy like me has no class because of my spelling...Then get lost...

BTW....I have a foster child ( 17 months)that I may adopt if her parents arent able to get things together..Ive given her a life and love that no orphanage ever could...This to me shows more testicle fortitude or "class" then any correct grammer over the internet ever could....

Class has nonthing to do with the way you talk

 

[jalnjr]

Re: ....1991 BBSC 5 psi dynoed....

snakey,
for what it wurth, doc john is prolly de biggest
mispellar offfender on primo, and he's a neuroradiopedoneuroradioligistist!:biggrin:

good luck boosty, get aem...

 

[docjohn]

Re: ....1991 BBSC 5 psi dynoed....

snakey,
for what it wurth, doc john is prolly de biggest
mispellar offfender on primo, and he's a neuroradiopedoneuroradioligistist!:biggrin:

good luck boosty, get aem...

Guilty as charged:redface: Snakey sorry for the minor thread jack.BTW take a look here.What makes this site so awsome is it is more about the people,the car is only a shared interest:wink:

http://www.nsxprime.com/forums/showthread.php?t=94554&highlight=adoption

 

[jalnjr]

Re: ....1991 BBSC 5 psi dynoed....

Guilty as charged:redface: Snakey sorry for the minor thread jack.BTW take a look here.What makes this site so awsome is it is more about the people,the car is only a shared interest:wink:

http://www.nsxprime.com/forums/showthread.php?t=94554&highlight=adoption

grope hugs....
:smile:

 

[Patricio]

Re: ....1991 BBSC 5 psi dynoed....

Class has nonthing to do with the way you talk

correction: "Talk" you mean "type" right?
If so I'm right there with ya,

lol. +1

get used to the holier than thou attitude around here.

from now on just answer..... "I'm rich biatch".

Funny thing is on Ferrari chat mostly the people driving sub 100k cars care about their spelling. The ones with 150k plus cars, hardly every put 2 seconds toward spelling corrections nor complete sentences.

It must be a Lawyer thing, my girl cringes when she sees my posts sometimes, she has a really hard time holding back from correcting every thing I type, it's almost psychotic I tell her. A masters in Chemisty and passing the NY Bar, and writing pharmeceutical patents all day will do that to you I guess. Its ok, as she knows I'm still smarter than her..:smile:

Nowadays I actually do proof the post just because of negative comments like the ones you got here. Oh well at least it gets me to post less. since without spell check and cant spell in english to save my life.

but I'm a drop out what do I know?

 

[jdnsx]

Re: ....1991 BBSC 5 psi dynoed....

This to me shows more testicle fortitude or "class" then any correct grammer over the internet ever could....

I am the world’s worst speller so I can't say anything but I am wondering if this is what you meant to say.:redface:

 

[prestonmay]

Re: ....1991 BBSC 5 psi dynoed....

Not defending Snakey...I am the worst typist which can be confused for a bad speller. But I am sure in some of my posts , most could not tell the difference. I have a 1yr old and 3 year old . Therefore, I find myself typing with one finger on my pager with two kids beside me reeaching for me. I must admit, I should proofread more.... So no excuses.....I am the elipse king....

Class is something that we are usually born intp, with or develop. A Harvard Education might not mean you have class, But I would trade my edu for it anytime.


WOW WT..... We suppose to be talking about NSXes....Geewise we got off topic.


P.S. Taking care of your owns kids is a great feat thats expected, but taking on one thats not Biologically yours is a CLASS ACT!!!

 

[DocL]

Re: ....1991 BBSC 5 psi dynoed....

It's apparent some people feel that I think I am holy, that is not the case. I am actually interested in what snakey has been writing about, but I find it difficult to understand. He's pushing the limit with his car and I have done the same thing in the past with my cars, it's just that I'm afraid to do so with my NSX. If I can learn from other people's mistakes I can make an informed choice as to how I may want to go FI with my NSX. I have never stated that I think snakey or anyone else with poor spelling is beneath me, but I do find it ironic that he works at a private education facility. I know that this is the internet and things are much more casual, but spelling the word "cool" as "kool" is just confusing for me to comprehend. It's not like the letter 'c' and 'k' are next to each other on the keyboard.

I'm sorry to have taken this thread way off topic, and I apologize to snakey and everyone else who is a bad speller. I too was a bad speller and my parents actually bought me a spelling dictionary when I was kid. Thankfully computers have a spell checker and I can look like I am highly edjumakated (sic). There is some truth to the phrase in my signature line.

 

[kolohe]

Re: ....1991 BBSC 5 psi dynoed....

I am actually interested in what snakey has been writing about, but I find it difficult to understand.

I too find portions of his posts interesting. Beyond that, it's his forum behavior that I find odd. Working at an education facility, serving in the military, and having a family, I expected more mature comments.

 

[spidergtv]

Re: ....1991 BBSC 5 psi dynoed....

i had no problem understanding. take it like your reading a license plate.

 

[queenlives]

Re: ....1991 BBSC 5 psi dynoed....

i had no problem understanding. take it like your reading a license plate.

+1

can't we all be a little more professionaler?