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The Terminator
Engine/Tuning
GMS vs Stock COP experiment...
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<blockquote data-quote="TermiN8er" data-source="post: 13184888" data-attributes="member: 106926"><p>Just wanted to let you all know, I am gonna do an experiment to compare the GMS to stock coil packs on the dyno. I already did the STOCK dyno run and the car seems to break up above 6300 RPM.</p><p></p><p>Background: </p><p>I ran MSD's and made 774HP on stock engine, E85, 3.4L Whipple @ 23# and it powered all the way through 6500 rpm no break up and no back fire. </p><p></p><p><a href="http://youtu.be/1VZh2KiwRDc" target="_blank">04 Cobra E85 3.4L Whipple Cobra JLT intake (774HP, 731TQ) - YouTube</a> </p><p></p><p><a href="http://youtu.be/H259klO0K9Q" target="_blank">JLT Next Gen 12" CAI test - YouTube</a></p><p></p><p></p><p>NOW:</p><p>I recently put a MMR Boss 9.5:1 stock heads/ stock cam (1mm over exaust valve),and stage 3 port, same 3.4L whipple, E85, and STOCK COPS!! (because tuner insisted on them...) the car started breaking up and missing at 6300. @24-25#'s. Tuner says my gap is too large.... re-gap to .24 and same thing! Tuner says my valve springs are not closing all the way at higher RPM ?!?! ( :dw: ) made 800HP and 772Tq. </p><p></p><p><a href="http://youtu.be/ZmMy_jVfjaM" target="_blank">E85 MMR BOSS Stroked, 3.4L Whipple COBRA, Dyno Run #2 - YouTube</a></p><p></p><p><a href="http://youtu.be/7iEalaugBPA" target="_blank">E85 MMR BOSS Stroked, 3.4L Whipple COBRA, Dyno Run #3 - YouTube</a></p><p></p><p></p><p>note dyno sheet:</p><p>[ATTACH=full]476079[/ATTACH]</p><p>[ATTACH=full]476080[/ATTACH]</p><p></p><p>My buddy had same whipple with Teksid bored over and cam. with STOCK COPS... his breaks up at the same rpm and makes 824hp with 780tq @ 27#'s of boost. (same day, same tuner). </p><p></p><p></p><p>SO, I am gonna put in GMS (and maybe my old MSD's) and see if it will do the same. My hypothesis is that the GMS will not break up at high RPM. I think the BOOST is blowing the spark out regardless of the gap because the OEM COPS are not STRONG enough to sustain the 25#'s of boost and compression. (not heat related, Voltage potential to sustain the spark).</p><p></p><p>I will update you all as to what I find out. </p><p></p><p>Any opinions( preferably with some data) are encouraged. </p><p></p><p>Last note: the OEM FORD COPS were 'made in China' from Ford :nonono: but they were OEM!!! :bored:</p><p></p><p></p><p>:beer:</p></blockquote><p></p>
[QUOTE="TermiN8er, post: 13184888, member: 106926"] Just wanted to let you all know, I am gonna do an experiment to compare the GMS to stock coil packs on the dyno. I already did the STOCK dyno run and the car seems to break up above 6300 RPM. Background: I ran MSD's and made 774HP on stock engine, E85, 3.4L Whipple @ 23# and it powered all the way through 6500 rpm no break up and no back fire. [url=http://youtu.be/1VZh2KiwRDc]04 Cobra E85 3.4L Whipple Cobra JLT intake (774HP, 731TQ) - YouTube[/url] [url=http://youtu.be/H259klO0K9Q]JLT Next Gen 12" CAI test - YouTube[/url] NOW: I recently put a MMR Boss 9.5:1 stock heads/ stock cam (1mm over exaust valve),and stage 3 port, same 3.4L whipple, E85, and STOCK COPS!! (because tuner insisted on them...) the car started breaking up and missing at 6300. @24-25#'s. Tuner says my gap is too large.... re-gap to .24 and same thing! Tuner says my valve springs are not closing all the way at higher RPM ?!?! ( :dw: ) made 800HP and 772Tq. [url=http://youtu.be/ZmMy_jVfjaM]E85 MMR BOSS Stroked, 3.4L Whipple COBRA, Dyno Run #2 - YouTube[/url] [url=http://youtu.be/7iEalaugBPA]E85 MMR BOSS Stroked, 3.4L Whipple COBRA, Dyno Run #3 - YouTube[/url] note dyno sheet: [ATTACH=full]476079[/ATTACH] [ATTACH=full]476080[/ATTACH] My buddy had same whipple with Teksid bored over and cam. with STOCK COPS... his breaks up at the same rpm and makes 824hp with 780tq @ 27#'s of boost. (same day, same tuner). SO, I am gonna put in GMS (and maybe my old MSD's) and see if it will do the same. My hypothesis is that the GMS will not break up at high RPM. I think the BOOST is blowing the spark out regardless of the gap because the OEM COPS are not STRONG enough to sustain the 25#'s of boost and compression. (not heat related, Voltage potential to sustain the spark). I will update you all as to what I find out. Any opinions( preferably with some data) are encouraged. Last note: the OEM FORD COPS were 'made in China' from Ford :nonono: but they were OEM!!! :bored: :beer: [/QUOTE]
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