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Matt O's Ultra4 Buggy - EOR Racing #4462
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<blockquote data-quote="BamaTJ" data-source="post: 141457" data-attributes="member: 2"><p><strong>Re: Matt O's Ultra4 Buggy & EOR Upgrades</strong></p><p></p><p>Update:</p><p></p><p>Rig is getting closer to dialed in. Fuel issue was a bad regulator and I had oil pressure issues first run out that was a simple fix also. I was able to take it out to my local trails last weekend and it did well. I still have a stall issue that seems to be linked to the duration of my GMPP Hot Cam not matching up well with my stock torque converter. It put 290hp to the rear wheels with 39's and is estimated at 400hp at the crank. It really rips in high range which is where my old motor was sluggish. It cools great also, I am very pleased with the cooling upgrades. The ECM controls the fans off/on and it never gets over 200. Even on the dyno pulls the highest temp we got was 196. I have been busy swapping spring rates and trying to get the ride dialed in, and I think it is close. I have a fix to try on the stalling issue this weekend and will address my crankcase ventilation from the PCV delete also. I also had a high steer bolt sheer off and I am trying to extract it. I have drilled it and welding a nut to it with no luck on either. I plan to ride the next few weekends and tear down around Christmas for full on KOH prep. </p><p></p><p>After running around my local trails pretty hard I noticed the tranny cooler cannot keep up and most believe the source of my stall issue is my stock TH400 TC. With the help of a great sponsor, Steven O'Neal, I was able to address both of those issues yesterday. I ordered a Griffin Universal Cooler and a PTC Converter to match my cam and application. Thanks again for the support of James O'Neal Dodge in Bremen, GA. </p><p></p><p>Here are a few pics I have and our dyno graph. More pics to follow.</p><p></p><p>[attachment deleted by admin]</p></blockquote><p></p>
[QUOTE="BamaTJ, post: 141457, member: 2"] [b]Re: Matt O's Ultra4 Buggy & EOR Upgrades[/b] Update: Rig is getting closer to dialed in. Fuel issue was a bad regulator and I had oil pressure issues first run out that was a simple fix also. I was able to take it out to my local trails last weekend and it did well. I still have a stall issue that seems to be linked to the duration of my GMPP Hot Cam not matching up well with my stock torque converter. It put 290hp to the rear wheels with 39's and is estimated at 400hp at the crank. It really rips in high range which is where my old motor was sluggish. It cools great also, I am very pleased with the cooling upgrades. The ECM controls the fans off/on and it never gets over 200. Even on the dyno pulls the highest temp we got was 196. I have been busy swapping spring rates and trying to get the ride dialed in, and I think it is close. I have a fix to try on the stalling issue this weekend and will address my crankcase ventilation from the PCV delete also. I also had a high steer bolt sheer off and I am trying to extract it. I have drilled it and welding a nut to it with no luck on either. I plan to ride the next few weekends and tear down around Christmas for full on KOH prep. After running around my local trails pretty hard I noticed the tranny cooler cannot keep up and most believe the source of my stall issue is my stock TH400 TC. With the help of a great sponsor, Steven O'Neal, I was able to address both of those issues yesterday. I ordered a Griffin Universal Cooler and a PTC Converter to match my cam and application. Thanks again for the support of James O'Neal Dodge in Bremen, GA. Here are a few pics I have and our dyno graph. More pics to follow. [attachment deleted by admin] [/QUOTE]
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