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SVT Shelby GT500
Stock w/ BAP vs Walbro
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<blockquote data-quote="MRL Performance" data-source="post: 12518271" data-attributes="member: 93903"><p>Gotcha.</p><p></p><p>Well, then again, that is where the "depends" comes in lol. If a certain tuner doesn't like BAP's, then that is his call. If you have a tuner you trust, then listen to their recommendations. I see where it can be confusing, but the tuner is the lifeline, if you can't trust him then you are screwed from the get go. I work with Lund a lot, he knows what I do, and I know what he does, so there are never any surprises when it comes to the fuel system. </p><p></p><p>I listed above what works for me and my builds. For instance.....(assuming Dynojet numbers here as well, pump or race gas, and again, just how I work my builds)</p><p>Stock-600rwhp, the 100% stock fuel system is fine.</p><p>600rw-650(675 maybe), stock pumps, no BAP, 72lb injectors (or 80's but they are crap)</p><p>675rw-800rw stock pumps w/BAP, 72lb injectors for the bottom half, ID1000 for the upper half ie: above 750rw.</p><p>Anything projected to be above 800rwhp will get a full return setup designed accordingly (although I have run close to 900rwhp on the stock returnless setup).</p><p></p><p>Some tuners will run the stock injectors up to 650rw with a BAP. I don't like to, so this is one of those cases where it depends. Injector technology has also come a long way. Not so long ago, sizing the injector was important because "big" injectors did not work so well at low PW and drivability suffered. Now you can run a 2000cc injector off a stock ECM and maintain stock like drivability. </p><p></p><p>And again, I have dozens of graphs and logs showing these various combinations. Also, back to the OP's original question, the FRPP hat setup only outflows the stock setup by like 3-5% (as Van also stated), so what is the point? There is nothing wrong with using a BAP, there are literally thousands of them installed and I'll bet the actual failure rate of a BAP is less than 1%.</p></blockquote><p></p>
[QUOTE="MRL Performance, post: 12518271, member: 93903"] Gotcha. Well, then again, that is where the "depends" comes in lol. If a certain tuner doesn't like BAP's, then that is his call. If you have a tuner you trust, then listen to their recommendations. I see where it can be confusing, but the tuner is the lifeline, if you can't trust him then you are screwed from the get go. I work with Lund a lot, he knows what I do, and I know what he does, so there are never any surprises when it comes to the fuel system. I listed above what works for me and my builds. For instance.....(assuming Dynojet numbers here as well, pump or race gas, and again, just how I work my builds) Stock-600rwhp, the 100% stock fuel system is fine. 600rw-650(675 maybe), stock pumps, no BAP, 72lb injectors (or 80's but they are crap) 675rw-800rw stock pumps w/BAP, 72lb injectors for the bottom half, ID1000 for the upper half ie: above 750rw. Anything projected to be above 800rwhp will get a full return setup designed accordingly (although I have run close to 900rwhp on the stock returnless setup). Some tuners will run the stock injectors up to 650rw with a BAP. I don't like to, so this is one of those cases where it depends. Injector technology has also come a long way. Not so long ago, sizing the injector was important because "big" injectors did not work so well at low PW and drivability suffered. Now you can run a 2000cc injector off a stock ECM and maintain stock like drivability. And again, I have dozens of graphs and logs showing these various combinations. Also, back to the OP's original question, the FRPP hat setup only outflows the stock setup by like 3-5% (as Van also stated), so what is the point? There is nothing wrong with using a BAP, there are literally thousands of them installed and I'll bet the actual failure rate of a BAP is less than 1%. [/QUOTE]
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Stock w/ BAP vs Walbro
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