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98 Cobra Restoration Build Thread
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<blockquote data-quote="Cobra52898" data-source="post: 15955879" data-attributes="member: 71221"><p>Hey bud I’ve been watching your build thread and would like to offer some thoughts based upon my experience building and tuning my 98 Cobra vert. </p><p></p><p>First off I’ve used a couple of DIY tuning devices and finally settled on a TwEECer-RT. </p><p>While not as popular as the hand held tuners, it allows access to each and every point in the EEC-V if desired. It also allows you to data log those same points. </p><p></p><p>In Texas they annually inspect and test for proper operation of all pollution control devices. So I had to get creative. </p><p></p><p>For what it’s worth it’s not necessary to remove all the pollution control devices to get maximum performance. Besides at WOT the EECV disables them all anyway. </p><p></p><p>SHM has reported that replacing the factory IMRC’s with deletes actually hurt’s low end performance and power significantly. So he no longer recommend’s that mod. </p><p></p><p>The EGR valve actually helps reduces combustion chamber temperatures if they get to high. </p><p></p><p>The electric air pump only operates briefly at startup to inject fresh air into the exhaust manifolds to help burn all the fuel. </p><p></p><p>As for the Cat’s I had to replaced them and went with a set of low restriction, high flow cat’s and stainless steel H-pipe. </p><p></p><p>With a Vortech V1 S-trim S/C and air to water after cooler, I’ve consistently put down 460 to 470 RWHP using the stock pulleys and internals. </p><p></p><p>I’m currently in the process of rebuilding the engine. Not due to damage but, because I’ve been driving it for 20 years and felt it was time to upgrade to more robust internal components that are able to withstand higher boost levels and power. </p><p></p><p>Anyway those are my thoughts. Hope they are helpful.</p></blockquote><p></p>
[QUOTE="Cobra52898, post: 15955879, member: 71221"] Hey bud I’ve been watching your build thread and would like to offer some thoughts based upon my experience building and tuning my 98 Cobra vert. First off I’ve used a couple of DIY tuning devices and finally settled on a TwEECer-RT. While not as popular as the hand held tuners, it allows access to each and every point in the EEC-V if desired. It also allows you to data log those same points. In Texas they annually inspect and test for proper operation of all pollution control devices. So I had to get creative. For what it’s worth it’s not necessary to remove all the pollution control devices to get maximum performance. Besides at WOT the EECV disables them all anyway. SHM has reported that replacing the factory IMRC’s with deletes actually hurt’s low end performance and power significantly. So he no longer recommend’s that mod. The EGR valve actually helps reduces combustion chamber temperatures if they get to high. The electric air pump only operates briefly at startup to inject fresh air into the exhaust manifolds to help burn all the fuel. As for the Cat’s I had to replaced them and went with a set of low restriction, high flow cat’s and stainless steel H-pipe. With a Vortech V1 S-trim S/C and air to water after cooler, I’ve consistently put down 460 to 470 RWHP using the stock pulleys and internals. I’m currently in the process of rebuilding the engine. Not due to damage but, because I’ve been driving it for 20 years and felt it was time to upgrade to more robust internal components that are able to withstand higher boost levels and power. Anyway those are my thoughts. Hope they are helpful. [/QUOTE]
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