Anyone using Sai Li fuel system?

[beefcake]

Yea that's the real issue here guys. To me isn't the whole idea to get off BAPs and have a safe build? I've hated using the BAP with the Procharger Stage 2, because it worries me as a point of failure. I want a simple reliable system not a Rube Goldberg machine. I just went for a Fore dual pump TIA 267 and a new fuel rail, haven't installed it yet and will report back on what I think about it once it's in. My goal is stability, not even running E85 (race gas / pump gas here) so that's tons of head room for my build. Ultimately I'm not going to miss the extra money between systems as much as I will blowing the engine up and doing all the extra work. I expect that to happen at some point, but I'm trying to minimize it .

People have reported failures and I've seen other people burn out fuel pumps on other cars with BAPs. My buddy blew his 2JZ up (Supra) when his BAP'ed pump let go during a hard run that included a shot of nitrous.

whole reason i recommend our fore setup......that exact reason

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[Tommy V]

Yea that's the real issue here guys. To me isn't the whole idea to get off BAPs and have a safe build? I've hated using the BAP with the Procharger Stage 2, because it worries me as a point of failure. I want a simple reliable system not a Rube Goldberg machine. Ultimately I'm not going to miss the extra money between systems as much as I will blowing the engine and doing the crazy amount of work to strip everything down and put it back together again. I expect that it will happen sometime, but I'd rather down the road from wear and tear than from a few hundred bucks saved. In my opinion guys who are more worried about saving hundreds of dollars on a critical component than the stability of the build are probably not in a financial position to do this kind of modding. What happens when you need a new engine?

People have reported failures with BAPs and I've seen other people burn out fuel pumps on other cars with BAPs. My buddy blew his 2JZ up (Supra) when his BAP'ed pump let go during a hard run that included a shot of nitrous. I just went for a Fore dual pump TIA 267 and a new fuel rail, haven't received/installed it yet and will report back on what I think about it once it's in. My goal is stability, not even running E85, race gas / pump gas here, so that's tons of head room for my build.

Hey I get it and the fire system is a nice system,but I already have a bap.so no money out of pocket for me.As far as burning pumps up that's the biggest myth out their.Many newer cars use fpm that act just like bap,s and fuel pumps last forever.When u istall.a bap if u do it right it only boost voltage after half to 3/4 pedal,so when cruising around the bap is not doing anything.Most modern fuel pumps work well over 16v from the factory.Bap,s are a safe way to extend your fuel system,I bet most of the pump failures were guys hooking them up wrong.The fore system is a nice system,but I'm not paying that much money for one of those kits,especially when I'm close to what power I plan on staying at.

 

[oesman]

Hey I get it and the fire system is a nice system,but I already have a bap.so no money out of pocket for me.As far as burning pumps up that's the biggest myth out their.Many newer cars use fpm that act just like bap,s and fuel pumps last forever.When u istall.a bap if u do it right it only boost voltage after half to 3/4 pedal,so when cruising around the bap is not doing anything.Most modern fuel pumps work well over 16v from the factory.Bap,s are a safe way to extend your fuel system,I bet most of the pump failures were guys hooking them up wrong.The fore system is a nice system,but I'm not paying that much money for one of those kits,especially when I'm close to what power I plan on staying at.

I get it and that's fine if it meets your goals on power and you feel it's safe. I'm by no means an expert and I don't know if our fuel pumps are safe at higher voltage, some people have reported pump failures here. It's possible they messed with the BAP settings or installed wrong. I don't daily drive my car so it mostly sees a lot of boost and BAP action with the PC Stage 2 kit. My understanding is that cars with factory fuel modules use pulse width modulation to vary the duty cycle of their signal to the pump rather than vary the voltage (it's how LEDs are properly dimmed, PWM not voltage) but I could be wrong on that. It really probably varies by manufacturer. Also I'm curious how reliable are the hobbs switches and the aftermarket BAP boxes themselves?

Anyway I'd rather have one less sensor and box of electronics that my engine's life depends on, but I also get how others may disagree. Obviously everyone has their own risk tolerances and works with what they're familiar and comfortable with. BAPs to me just come from a world of weird hacks my JDM friends did. I just always said "Why not just get a big enough fuel system?" and then became a BAP guy when I got this PC and been itching to ditch the BAP ever since.

 

[Rodeheaver]

A BAP should be set to only add the extra voltage at WOT and most uf us only WOT for 8-10 seconds, so that should never hurt a pump. Again, If it was installed and set up correctly. I love VMP stuff, but im pretty sure his BAP is full voltage all the time.

 

[oesman]

A BAP should be set to only add the extra voltage at WOT and most uf us only WOT for 8-10 seconds, so that should never hurt a pump. Again, If it was installed and set up correctly. I love VMP stuff, but im pretty sure his BAP is full voltage all the time.

You're right, for sure most people only use the BAP occasionally. In my case though it's not a daily so it mostly sees abuse.

 

[higdominator]

VMP bap killed my OEM pump back when I was a nitrous car. Had less tha. 5k on the car.

The BAPs that run on a hobbs only when you need them seem to to be the best option however I’d rather just run bigger pumps in the meat of their efficiency range.

 

[Tommy V]

VMP bap killed my OEM pump back when I was a nitrous car. Had less tha. 5k on the car.

The BAPs that run on a hobbs only when you need them seem to to be the best option however I’d rather just run bigger pumps in the meat of their efficiency range.

Have u data logged your car is sub 30 degree weather with it turned up on e85.Bet your a/f are at least a little different.

 

[higdominator]

Have u data logged your car is sub 30 degree weather with it turned up on e85.Bet your a/f are at least a little different.

I run what is likely E70 in the winter most of the time and don’t expect much change due to that. I also haven’t had the car out in sub 30 and definitely won’t be going WOT if it is, lol. #deathsentence

 

[Tommy V]

I run what is likely E70 in the winter most of the time and don’t expect much change due to that. I also haven’t had the car out in sub 30 and definitely won’t be going WOT if it is, lol. #deathsentence

Lol yea it gets sketchy!!!! but I want to make sure my car is running right in cold weather too even though it's not a daily.Its a lot of anxiety before each log.I leave traction control on,it will pull timing buy not affect a/f.

 

[Dominant1]

I used vortech non programable bap in my last car i was told it only turns up the juice during wot is this true with this model? Or is it up to your tuner?

 

[Tommy V]

I used vortech non programable bap in my last car i was told it only turns up the juice during wot is this true with this model? Or is it up to your tuner?

I'm not sure about the vortec but the jms let's u program when u want it to run voltage.U can use pedal position or hobbs/boost switch.U can also set up ramp in voltage so u.dont get voltage spikes.I talked to jms and they said there bap would run two stock pumps,only thing u have to do is change the fuse to a higher amp fuse.The JMS is a nice piece.

 

[Rodeheaver]

I'm not sure about the vortec but the jms let's u program when u want it to run voltage.U can use pedal position or hobbs/boost switch.U can also set up ramp in voltage so u.dont get voltage spikes.I talked to jms and they said there bap would run two stock pumps,only thing u have to do is change the fuse to a higher amp fuse.The JMS is a nice piece.

Yes, we use the JMS all the time. The real nice thing about the JMS is that you can set it at 18V or 22V for WOT pump voltage and you can set the pedal voltage to trigger the extra voltage to the pump at any pedal voltage/position, you can set it right near the end of the pedal or in the middle or wherever. We usually set them about 3/4 pedal for the best results.

 

[Tommy V]

Just wanted to do some more testing before I come on here and posted about the gt350 pumps.Well their no doubt that mine is running out at 7k rrpm.My car probably make 750 rwhp through an auto on a d1 with a 4.88 pulley.TRIPLE checked and pumps have 14.5 volts running to them at all times.Another u guys should now is the gt and gt 350 pump is not the same.I took my pump out of my stock hat and Member Jn2 had a gt 350 pumped pulled from a hat and they were 2 different part numbers,I can post them if u want.The gt pump is easy to find specs on but can't find nothing on the gt350 pump.Im going to run my jms bap to both pumps and that should get me what I need,but the gt 350 pumps are not going to support over 800rwhp on e85 on a supercharged car.Possible a bad pump,may be but I doubt it.Their are guys running the gt350 pumps on e85 and probably will be fine,but if u think u are over 750 whp u should data log your car on the street to make sure your not running out of fuel.

 

[dubster99]

There's no way this fuel system runs out at 750. Plenty of people are running it to 850 on a blower car. There's something wrong with your setup...bad pump, incorrect setup, etc. The GT pump is not the same as the 350 pump, but the 350 pump is the same as the 500...if that's what you were getting at. What pumps did you get?

 

[Tommy V]

There's no way this fuel system runs out at 750. Plenty of people are running it to 850 on a blower car. There's something wrong with your setup...bad pump, incorrect setup, etc. The GT pump is not the same as the 350 pump, but the 350 pump is the same as the 500...if that's what you were getting at. What pumps did you get?

No bud the gt 500 pumps are not the same as the gt 350 pumps,I looked into that already.Im just telling u guys what is what,I've been a certified mechanic for 30 years and I know for sure they are hooked up as Sai Li instructions.Yes I could have a bad pump and if that is the case the bap will bring that out.Their are also alo t of guys that are running out of pump with the gt350 pumps are just not posting about it.Its all depended on hp/weather/and injectors play a part too.Me and Jon be over and over the logs and bad pumps don't run fine all the way to 6900 rpms they just fall off a cliff lol.

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