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SVT Shelby GT500
Breaking in a 500 Horsepower Motor
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<blockquote data-quote="01cobravortech" data-source="post: 3095190" data-attributes="member: 14885"><p>There's another member on here, Nazman, who seems to be on the money when it comes to mod motors. He has something interesting to consider. He's saying run it hard for the 1st 20 miles. For details---take a look fellas. I have to admit that what he is suggesting sure sounds like the way a motor should be broken in.</p><p></p><p> Naz Big Bore: 250+ Miles Up-Date </p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Just wanted to share with all a 250+ Miles up-date on the new motor/combo!</p><p></p><p>First off, great job Modular Performance! This motor rocks!</p><p></p><p>As you may know the motor consisted in a 304CI Big Bore, Fully Ported FR500 Heads, Cams & FR500 Intake, SLP LTs, Mid Pipe and MF CB along with all the supporting bolt-ons and such. Fuel consist of Terminator Pumps, Tank, Injectors and I’m about to install a KB BAP.</p><p></p><p>The new combo has o/a 257 Miles as of now. After initial start up I brought the motor to full operating temp and then changed the oil. I took her for her initial drive (o/a 30 miles) for break-in following the breaking procedures as listed here <a href="http://www.mototuneusa.com/break_in_secrets.htm" target="_blank">http://www.mototuneusa.com/break_in_secrets.htm</a> this procedure was cleared and OK’d by John @ MP as well.</p><p></p><p>Once the motor reached 100 miles the oil was changed again and will be changed one more time at 500 miles.</p><p></p><p>Now, the car low end power production is WELL above the prior combo, TB response is insane and just pulls, pulls and keeps pulling. What really impresses me on this combo is the MID RANGE and the TOP END. Gents, the mid range on this thing is sickening. Totally blows away the old combo, remember my last combo made 410RWHP so it was not such of low hitter. The car from lets say o/a 3500-5500 pulls like a jet on take off. Pulls you into the seat and keeps you there for good! Now, once it reaches o/a 5500 RPMs and the FR500 intake has transitioned to the short runners is like a 75 shot of Nitrous! This top end pull never ends! Today, since it was dry over here in Germany I lay on the car 2 times, each time from o/a 4000RPMs on 3rd gear to o/a 7300 RPMs where I granny shifted and again on 4th gear and the RPMs move sooooooooo quickly thru the RPM range that I could barely keep up. My shift light was set at o/a 7150 RPMs and just keep on coming on! I was actually scared that the tires were to come lose on the top of 4th gear. The car has some serious cojones! </p><p></p><p>Gents, we have a Terminator Slayer!</p><p></p><p>Right now I’m scheduling for a dyno (base line) the last Friday of this month where I should have o/a 500 miles on the motor. Hope that by that time to also have the new Accufab TB for the 99-01s.</p><p></p><p>Once the car reaches the 1000 miles, the NX Nitrous system will go on and hope to have a 150 shot for the car.</p><p></p><p>The goals are 450+RWHP NA and 600+RWHP on the juice.</p><p></p><p>Will continue to keep you guys informed.</p><p></p><p>Comments?</p><p></p><p>Naz</p><p>__________________</p><p>1999 Cobra</p><p>304CI Big Bore by MP, 11.5CR, SLP LTs/Mid Pipe & MF CB, 4.30s w/Solid Axle, FR500 Intake, Fully Ported FR500 Heads, FR500 Cams & Valvetrain, 150 Shot of NX Juice, NOS Nitrous Controller, NX GEN 2, Build Diff, Fidenza AF, SPEC Stage 3+ w/Light Weight PP, JLT CAI, SCT BA2400 MAF, Dual Pumps, 39LBs, BAP and a bunch more.</p><p>"The Terminator Slayer!"</p></blockquote><p></p>
[QUOTE="01cobravortech, post: 3095190, member: 14885"] There's another member on here, Nazman, who seems to be on the money when it comes to mod motors. He has something interesting to consider. He's saying run it hard for the 1st 20 miles. For details---take a look fellas. I have to admit that what he is suggesting sure sounds like the way a motor should be broken in. Naz Big Bore: 250+ Miles Up-Date -------------------------------------------------------------------------------- Just wanted to share with all a 250+ Miles up-date on the new motor/combo! First off, great job Modular Performance! This motor rocks! As you may know the motor consisted in a 304CI Big Bore, Fully Ported FR500 Heads, Cams & FR500 Intake, SLP LTs, Mid Pipe and MF CB along with all the supporting bolt-ons and such. Fuel consist of Terminator Pumps, Tank, Injectors and I’m about to install a KB BAP. The new combo has o/a 257 Miles as of now. After initial start up I brought the motor to full operating temp and then changed the oil. I took her for her initial drive (o/a 30 miles) for break-in following the breaking procedures as listed here [url]http://www.mototuneusa.com/break_in_secrets.htm[/url] this procedure was cleared and OK’d by John @ MP as well. Once the motor reached 100 miles the oil was changed again and will be changed one more time at 500 miles. Now, the car low end power production is WELL above the prior combo, TB response is insane and just pulls, pulls and keeps pulling. What really impresses me on this combo is the MID RANGE and the TOP END. Gents, the mid range on this thing is sickening. Totally blows away the old combo, remember my last combo made 410RWHP so it was not such of low hitter. The car from lets say o/a 3500-5500 pulls like a jet on take off. Pulls you into the seat and keeps you there for good! Now, once it reaches o/a 5500 RPMs and the FR500 intake has transitioned to the short runners is like a 75 shot of Nitrous! This top end pull never ends! Today, since it was dry over here in Germany I lay on the car 2 times, each time from o/a 4000RPMs on 3rd gear to o/a 7300 RPMs where I granny shifted and again on 4th gear and the RPMs move sooooooooo quickly thru the RPM range that I could barely keep up. My shift light was set at o/a 7150 RPMs and just keep on coming on! I was actually scared that the tires were to come lose on the top of 4th gear. The car has some serious cojones! Gents, we have a Terminator Slayer! Right now I’m scheduling for a dyno (base line) the last Friday of this month where I should have o/a 500 miles on the motor. Hope that by that time to also have the new Accufab TB for the 99-01s. Once the car reaches the 1000 miles, the NX Nitrous system will go on and hope to have a 150 shot for the car. The goals are 450+RWHP NA and 600+RWHP on the juice. Will continue to keep you guys informed. Comments? Naz __________________ 1999 Cobra 304CI Big Bore by MP, 11.5CR, SLP LTs/Mid Pipe & MF CB, 4.30s w/Solid Axle, FR500 Intake, Fully Ported FR500 Heads, FR500 Cams & Valvetrain, 150 Shot of NX Juice, NOS Nitrous Controller, NX GEN 2, Build Diff, Fidenza AF, SPEC Stage 3+ w/Light Weight PP, JLT CAI, SCT BA2400 MAF, Dual Pumps, 39LBs, BAP and a bunch more. "The Terminator Slayer!" [/QUOTE]
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