ok the list goes on. that doesnt help. who in this big list can tune my cars in which in live in atlanta ga. that is within 600 miles and will tune the cars before the 10th. is there anyone in that list?

 

or better yet who will travel.?

 

Any of those people will travel for the right price.

 

Have you been using it for four years WITH a half bridged motor ?? , The A1000 works well with a street port , but as soon you go with a "big" port it falls flat on its *** ! .W
When I had my half bridge and the Aeromotive pump I couldnt go past 12 psi boost , if I allowed the boost to go past this mark the fuel pressure would fall just as fast as the boost was rising , causing the motor to lean out , I've also seen it happen on my buddys full bridged race car , it cost him two motors !!
As for the BOSCH '044's , I am now using a pair of them , they are excellent pumps , just one of them would far out flow the A1000 ,they are rated at 200 lph @ 5 bar , the A 1000 is rated at 43 psi .When I installed them , my fueling went pig rich ! , this is the same map that was good up to 12psi on the A1000 ! , I've had them for more than two years , and they are still going strong.

 

Similar experience, same end results for fuel pumps. And about tuners, make sure whomever you get has tuned bridged motors before.

The squirrels here will swing from the nuts of the trees the are tied to. What ever tuner you use make sure you have a copy of the logs and the map used for your car and have an idea what their philosophy is for ignition timing for your car.

 

Why would it easily support my 600whp with pressure very steady and not hold your 12psi? I don't see your reasoning...........

 

Bosch pumps are very reliable and are used in forms of professional motorsports and OEMs. There is nothing wrong with bosch pumps.


-S-

 

Not sure if we're talking about the same bosch pumps but I used to work part-time for a auto parts store. We used to sell bosch pumps and about 50%-60% of them would be returned because they quit working.

Maybe their performance pumps are better quality?

 

I am just relating my experience and that of my buddys , bridge and peripheral port motors always require more fuel and the A 1000 isn't up to the task , on a piston motor however , they work great , but a rotary is another story , if you do a search on here you would find out the same thing ......... , I guess in the end it 's up to rotarynut ,if he wants to trust his investment to a "**** pump" that has already been proven to be inadequate , I hope his luck is as good as yours and he doesnt pop his motor , but seeing that his motor combination is very close to what I had (and my friednd has) I will be eagerly looking out for his updates.

 

Mis-information is a bitch.

How was your pump being worked harder at 12psi/Boost than my pump at 27psi/Boost?

Alot of my turbo mustang drag racing buddies use this pump without any problems.

 

You can call it what you want .................. but this is what happened , and I am willing to bet my last buck that it will happen again , you cannot compare your motor to his if you have a SP and he has a HPB , they are two totally different motors !!
My friend made 485 RWHP at 20 psi with that pump on a SP , when he went to a full bridge He made less than 350 at the same boost everything else remained the same, every time we tried to go up with the boost the LM1 ould read 20 + :1 afr , we had a guy look at the pressure gauge on the regulator and guess what , the presure hept falling as the motor accelerated . He now uses two of those pumps (A1000) , and without changing anything else , his fuel pressure is holding up to 30+ psi where he made 608 RWHP , what do you think caused that ? ...., so as I said , you can call it as you like but I have first hand experience in this , and your "turbo mustang drag racing buddies " really has nothing to do with this , I'm sure you know that a MustangV8 is different to a half bridged rotary !!! ,
" Mis-information is a bitch " ......, I'd give anything to see the look on your face , and his when YOUR mis-information blows his motor to hell !! , I'll still be boosting happily along with my pair of '044's singing away under my car.

 

I guess I must have a pump that was built on a wednesday then, huh?

4 years and ticking with my pump and zero problems. 603whp and plenty of fuel pressure to go.

 

This doesn't make any sense. The pump doesn't know what kind of ports the engine has. If it can make 420 HP then it can make 420 HP. I wouldn't expect the pump to support less horse power because the ports were changed.

 

dynotuner.net Ed's pretty good. Tunes all the world speed cars, and has done some tuning panoz. He ussually is at balanced performance in buford,ga

 

glad I'm not the only one who thought that sounded ridiculous

 

I am truly amazed !!!!! . I read posts by you both and actually thought that you had a clue ! , I dont believe that I would have to explain this ..... well here goes
As I stated before , a street ported motor and a bridged or pp motor are completely different , when they are ported their low rpm efficiency is reduced , due to over lap , hence the crappy milaege and higher RPM power band , generally more fuel is required in these lower RPM areas to even get the motor to rev cleanly so although your not boosting you are using more fuel from the pump .Higher up in the range is where the motor really wakes up and the larger ports begin to flow , at this point the turbo is already also up in it sweet spot pumping out more air than it would have if it was on a street ported motor ,) ever notice that a substantially larger turbo is required with a bridge or pp ?) , and even more fuel is called for to maintain the required ratio bringing the pump even closer to its curve , also when the intake is pressurized , athe pump has to pump into a " back pressure " and I'm sure you know , when pressur goes up flow goes down.
A street ported dyno graph looks different to a bridged one , the 420HP / 8000 RPM point on the SP graph would be 480 on the bridged one , the motor flows more air , soi it would require more gas , notice I said before that everything renmained ok up to 12psi boost , after that point the motor and turbo were flowing tons of air , more than any street port could . You should surf the net a bit ,and look for high power rotarys , you WILL find that they are either PP 's , semi PP's and BP's and NONE of them use the A1000 as a single fuel pump.

 

Maybe you should talk to some actual racers and find out what REALLY works. Adam Saruwatari, Abel, Ari, Dee, Carl martin, Carlos Montano,Steve Kan, Jose Vidal, Carlos Gonzalos etc. etc. etc. etc. etc. all use street ports.

Steve Kan didn't think my A1000 pump would support my 603whp either until he saw it with his own eyes. There was plenty left in it too.

 

Then how are the Honda boys making over 650whp at 35+psi running A1000 pumps with no problems?

 

You ever heard of BSFC?


-Ted

 

Hmm. Makes you an expert on all Bosch pumps? Especially the ones were talking about that you can't buy at the chain auto parts stores?

 

Brake Specific Fuel Consumption. That’s something the Rotary’s guys don’t like to talk about. Puts Flame suit on.

This is my point there are a ton of Honda’s running 375lbs/hr to 425lbs/hr from
.48 BSFC to .50 BSFC with this pump at 35+ lbs of boost.

Take your 425lbs/hr and divide it by .65 BSFC and you get 653HP or .60 BSFC 708HP

I’ll stay out of this and go back to work on my Honda.

 

Yes, you're talking about average BSFC.
The BSFC fluctuates pretty wildly when you start to analyze derivatives at any one point in the power band.


-Ted

 

I would love to see some of the data logs from these PP ported engines.

So the injector pulse width will be increasing following the torque curve then hit a area where it will increase drastically?

When it does this is it for thermal cooling or is it because of a poor homogenous air to fuel mixture?

 

what kinda bsfc's are the big turbo rotories running around with?

 

unfortunately, high 6's most of the time.
race gas can bring that down due to leaner afr's and more timing, but rotaries just aren't the most efficient animals in the zoo.