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SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
2019 ZR1 Corvette 1/4 mile World Record 9.48 @146
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<blockquote data-quote="D'ZR1 Messiah" data-source="post: 16191479" data-attributes="member: 22859"><p>From Ben at WeaponX</p><p></p><p>The ZR1 E99 ECM is new, which communicates with the new Fuel Pump Injector Control Module for the port injection, so differences in firmware will likely make a port injection retrofit package very difficult since the new ECM's firmware will likely not communicate easily with the previous Z06 E92 ECM. </p><p></p><p>The M7 and A8 transmissions are shared, but I'm sure the ZR1 will have the latest and greatest programming to not only account for the power, but also improved shifting.</p><p></p><p>The LT5 and LT4 use the same low side tank pumps so anyone wanting to run ethanol or big power will still need to address this.</p><p></p><p>The LT5 and LT4 use the same <a href="http://i.viglink.com/?key=525af9810c904df0c1fe15a01802589a&insertId=eef0c287c2d99afd&type=S&exp=60%3ACI1C55A%3A3&libId=jvcf1g8901015pl0000DAbyjnjo2x&loc=https%3A%2F%2Fwww.stingrayforums.com%2Fforum%2Flt4-lt5-its-powertrain-discussion%2F72418-lt4-vs-lt5-differences.html&v=1&iid=eef0c287c2d99afd&opt=true&out=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fsearch%3Fie%3DUTF8%26camp%3D1789%26creative%3D9325%26index%3Dautomotive%26keywords%3Dhigh%252Bpressure%252Bfuel%252Bpump%26linkCode%3Dur2&ref=https%3A%2F%2Fwww.google.com%2F&title=LT4%20vs%20LT5%20Differences&txt=%3Cspan%3Ehigh%20%3C%2Fspan%3E%3Cspan%3Epressure%20%3C%2Fspan%3E%3Cspan%3Efuel%20%3C%2Fspan%3E%3Cspan%3Epump%3C%2Fspan%3E" target="_blank">high pressure fuel pump</a> and injectors.</p><p></p><p>The LT5 and LT4 use the same cylinder heads.</p><p></p><p>The LT5 and LT4 use the same pistons.</p><p></p><p>The LT5 has an AFM-less valley plate.</p><p></p><p>The LT5 has different crank and connecting rods, likely for the added power.</p><p></p><p>The LT5 has a different camshaft.</p><p></p><p>The ZR1's front wheels are .5" wider; however, only 5mm of that is to the outside, so I do think the car is slightly wider up front, but how much I am still unsure. I'm hoping for 1". </p><p></p><p>The ZR1 uses a triple heat exchanger system as well as shares the center heat exchanger with the Z06, but that PN changed for 2019 as well.</p><p></p><p>The ZR1 uses TWO heat exchanger pumps for the separate coolant brick loops like we do on our ATS V kits.</p><p></p><p>The ZR1 has a 95mm <a href="http://i.viglink.com/?key=525af9810c904df0c1fe15a01802589a&insertId=f70cb3bc7a2e98e0&type=L&exp=60%3ACI1C55A%3A3&libId=jvcf1g8901015pl0000DAbyjnjo2x&loc=https%3A%2F%2Fwww.stingrayforums.com%2Fforum%2Flt4-lt5-its-powertrain-discussion%2F72418-lt4-vs-lt5-differences.html&v=1&iid=f70cb3bc7a2e98e0&opt=true&out=http%3A%2F%2Fwww.amazon.com%2Fdp%2FB00695UYH4%2F&ref=https%3A%2F%2Fwww.google.com%2F&title=LT4%20vs%20LT5%20Differences&txt=%3Cspan%3Ethrottle%20%3C%2Fspan%3E%3Cspan%3Ebody%3C%2Fspan%3E" target="_blank">throttle body</a> vs the Z06 87mm.</p><p></p><p>The ZR1 has a different pressure active exhaust; however, I'm not sure if this is accounted for in the bypass valves with the operation, or it's an entirely different exhaust.</p></blockquote><p></p>
[QUOTE="D'ZR1 Messiah, post: 16191479, member: 22859"] From Ben at WeaponX The ZR1 E99 ECM is new, which communicates with the new Fuel Pump Injector Control Module for the port injection, so differences in firmware will likely make a port injection retrofit package very difficult since the new ECM's firmware will likely not communicate easily with the previous Z06 E92 ECM. The M7 and A8 transmissions are shared, but I'm sure the ZR1 will have the latest and greatest programming to not only account for the power, but also improved shifting. The LT5 and LT4 use the same low side tank pumps so anyone wanting to run ethanol or big power will still need to address this. The LT5 and LT4 use the same [URL='http://i.viglink.com/?key=525af9810c904df0c1fe15a01802589a&insertId=eef0c287c2d99afd&type=S&exp=60%3ACI1C55A%3A3&libId=jvcf1g8901015pl0000DAbyjnjo2x&loc=https%3A%2F%2Fwww.stingrayforums.com%2Fforum%2Flt4-lt5-its-powertrain-discussion%2F72418-lt4-vs-lt5-differences.html&v=1&iid=eef0c287c2d99afd&opt=true&out=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fsearch%3Fie%3DUTF8%26camp%3D1789%26creative%3D9325%26index%3Dautomotive%26keywords%3Dhigh%252Bpressure%252Bfuel%252Bpump%26linkCode%3Dur2&ref=https%3A%2F%2Fwww.google.com%2F&title=LT4%20vs%20LT5%20Differences&txt=%3Cspan%3Ehigh%20%3C%2Fspan%3E%3Cspan%3Epressure%20%3C%2Fspan%3E%3Cspan%3Efuel%20%3C%2Fspan%3E%3Cspan%3Epump%3C%2Fspan%3E']high pressure fuel pump[/URL] and injectors. The LT5 and LT4 use the same cylinder heads. The LT5 and LT4 use the same pistons. The LT5 has an AFM-less valley plate. The LT5 has different crank and connecting rods, likely for the added power. The LT5 has a different camshaft. The ZR1's front wheels are .5" wider; however, only 5mm of that is to the outside, so I do think the car is slightly wider up front, but how much I am still unsure. I'm hoping for 1". The ZR1 uses a triple heat exchanger system as well as shares the center heat exchanger with the Z06, but that PN changed for 2019 as well. The ZR1 uses TWO heat exchanger pumps for the separate coolant brick loops like we do on our ATS V kits. The ZR1 has a 95mm [URL='http://i.viglink.com/?key=525af9810c904df0c1fe15a01802589a&insertId=f70cb3bc7a2e98e0&type=L&exp=60%3ACI1C55A%3A3&libId=jvcf1g8901015pl0000DAbyjnjo2x&loc=https%3A%2F%2Fwww.stingrayforums.com%2Fforum%2Flt4-lt5-its-powertrain-discussion%2F72418-lt4-vs-lt5-differences.html&v=1&iid=f70cb3bc7a2e98e0&opt=true&out=http%3A%2F%2Fwww.amazon.com%2Fdp%2FB00695UYH4%2F&ref=https%3A%2F%2Fwww.google.com%2F&title=LT4%20vs%20LT5%20Differences&txt=%3Cspan%3Ethrottle%20%3C%2Fspan%3E%3Cspan%3Ebody%3C%2Fspan%3E']throttle body[/URL] vs the Z06 87mm. The ZR1 has a different pressure active exhaust; however, I'm not sure if this is accounted for in the bypass valves with the operation, or it's an entirely different exhaust. [/QUOTE]
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2019 ZR1 Corvette 1/4 mile World Record 9.48 @146
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