I BLEW IT!!!!!!!
#31
Senior Member
Posts like a Supercharger
Join Date: Feb 2004
Location: San Jacinto, CA
Posts: 155
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by willwren
Teflon pistons? No advantage with KR. Buy OEM pistons. They're buiilt to handle alot more power than you or I are putting out.
Porting and Polishing WHAT? Some will reduce KR, some will not. You need to be alot more specific. TB? LIM? EMs? ???
Moving to Performance and Brainstorming.
Porting and Polishing WHAT? Some will reduce KR, some will not. You need to be alot more specific. TB? LIM? EMs? ???
Moving to Performance and Brainstorming.
#32
Senior Member
Posts like a Camaro
Join Date: Dec 2005
Location: Clovis, CA
Posts: 851
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by willwren
Get a Walbro 255lph fuel pump and an adjustabale FPR.
#34
Senior Member
Posts like a Corvette
Join Date: Jul 2004
Location: Bolingbrook, IL Location: Clarkston, MI
Posts: 1,256
Likes: 0
Received 0 Likes
on
0 Posts
An adjustabale FPR will only give you problems with tuning. Only time I'd use a adjustabale FPR is if you went turbo. Just get a stock FPR and upgrade fule pump and boost voltage to the pump.
#35
Junior Member
Posts like a Ricer Type-R
Originally Posted by llBlazin_llLo
An adjustabale FPR will only give you problems with tuning. Only time I'd use a adjustabale FPR is if you went turbo. Just get a stock FPR and upgrade fule pump and boost voltage to the pump.
This is the reason I chose this path personally. Alot of research and talking went on with Fuel Injection Enterprises first. As well as INTENSE. My adjustable FPR solved all my fueling issues.
#37
Junior Member
Posts like a Ricer Type-R
You can't 'see' them because my scantool doesn't record. I have a CP9110. And quite honestly, I really don't have anything to prove to anyone here. Other than the fact that I speak of what I experience and test PERSONALLY on my own cars.
#38
Senior Member
Posts like a Corvette
Join Date: Jul 2004
Location: Bolingbrook, IL Location: Clarkston, MI
Posts: 1,256
Likes: 0
Received 0 Likes
on
0 Posts
if you use an aftermarket regulator that is adjustable and increase the base pressure of the regulator, the amount of boost to max out the pressure of the pump will be less.
The PCM will also compensate for changes to the base fuel pressure, negating them over time by changing the fuel trim value.
The PCM will also compensate for changes to the base fuel pressure, negating them over time by changing the fuel trim value.
#39
Junior Member
Posts like a Ricer Type-R
Originally Posted by llBlazin_llLo
if you use an aftermarket regulator that is adjustable and increase the base pressure of the regulator, the amount of boost to max out the pressure of the pump will be less.
The PCM will also compensate for changes to the base fuel pressure, negating them over time by changing the fuel trim value.
The PCM will also compensate for changes to the base fuel pressure, negating them over time by changing the fuel trim value.
The PCM will compensate for pressure changes, but not by affecting the regulator itself, rather adjusting the duty cycle of the injectors. This is fine. A 29lb injector is still capable of higher than stock flow at a higher than stock fuel pressure. You still get the advantages of running a higher pressure and a lower duty cycle, assuming your PCM is capable of figuring out what the sensors are telling it.
In my case, I was running lean on the top end because I increased my port velocity in the LIM. Running the Gen3 swap on the top end with a 95 TB and MAF I was able to boost my fuel pressure to solve the problem permanently. This will not be true in all cases, but it was in mine. The FPR was chosen after careful consideration and discussions with several experts in the field. All agreed it was the best solution. It'* important to keep in mind that you MUST have a good fuel pump before using an adjustable FPR at a higher pressure.
We have another car here (2k+ SSEi) in the 13'* that chose to adjust fuel pressure rather than go with larger injectors. It worked perfectly for him. FIE backs this up. The higher fuel pressure negates the need for larger injectors up to a point. And delivers more efficient atomization of the fuel.
#40
Senior Member
Posts like a Corvette
Join Date: Jul 2004
Location: Bolingbrook, IL Location: Clarkston, MI
Posts: 1,256
Likes: 0
Received 0 Likes
on
0 Posts
Your raising the fuel pressure all the time with a adjustable FPR. It solved your problem of running lean at a higher RPM but now you are running rich at lower RPM. Your fuel trims must be all over the place.
if you use an aftermarket regulator that is adjustable and increase the base pressure of the regulator, the amount of boost to max out the pressure of the pump will be less. If your injectors are going static and you want to get a little more out of them you should raise voltage that the pump will see. That will raise max fuel pressure (not base fuel pressure) that the pump can put out giving you more 'head room' at higher RPM/Boost. This can be done many ways with many of them being cheep and easy.
if you use an aftermarket regulator that is adjustable and increase the base pressure of the regulator, the amount of boost to max out the pressure of the pump will be less. If your injectors are going static and you want to get a little more out of them you should raise voltage that the pump will see. That will raise max fuel pressure (not base fuel pressure) that the pump can put out giving you more 'head room' at higher RPM/Boost. This can be done many ways with many of them being cheep and easy.