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10-06-2024, 10:38 AM | #1 |
Registered User
Join Date: May 2022
Location: Illinois
Posts: 180
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Re: Bucketlist Blazer -Restomod build 6.6liter L8T
Still waiting on the correct vvt lockout but at least I got the new dual valvesprings and new pushrods installed. ( made a huge mess) The damn package with the lockout has been sitting at my post office since 0730 this morning. Why they did not deliver it is beyond me. I wish I could just pick the damn thing up.
Oh well, if they deliver tomorrow I will be able to install the phaser, oil pump and reinstall the front cover and oil pan. Officially it will be an approximately 560-570 hp motor. That will be nice to drive one day! |
10-07-2024, 09:09 PM | #2 |
Registered User
Join Date: May 2022
Location: Illinois
Posts: 180
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Re: Bucketlist Blazer -Restomod build 6.6liter L8T
Finally got the vvt lockout. It took less than 60 seconds to put it back together and then I headed to the garage to close the motor back up. I did a little paint work and torqued everything to spec. I am happy with the progress. It is getting closer to test fire time!
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10-07-2024, 09:14 PM | #3 |
Registered User
Join Date: May 2022
Location: Illinois
Posts: 180
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Re: Bucketlist Blazer -Restomod build 6.6liter L8T
Motor pics from my work today.
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10-09-2024, 10:37 PM | #4 |
Registered User
Join Date: May 2022
Location: Illinois
Posts: 180
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Re: Bucketlist Blazer -Restomod build 6.6liter L8T
Since People may be getting sick of my posts here I will just post these random thoughts that keep entering my mind about this build.
I realized today that I may be underestimating the amount of power that my motor is going to be putting out. Brian Tooley Racing for me has been known to be pretty stand up folks amongst the other manufacturers inflate their numbers. Well I was on their site today and found the results from their testing of the motor that I am running on E85. I realize that I was estimating based off a factory intake and E85. That is clearly not what I am running. I have a Holley Hi ram intake and will be running E85. Well it just so happens that my high ram is comparable to the trinity intake that they tested it with and low and behold................I may just be underestimating a bit. This is the one with the factory intake. |
10-10-2024, 12:25 AM | #5 |
Registered User
Join Date: May 2022
Location: Illinois
Posts: 180
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Re: Bucketlist Blazer -Restomod build 6.6liter L8T
Following up on my last post a few min ago, I started thinking that my logic may not be far off for a few reasons.
The factory GM crate L8T motor (called L8P) comes with a slightly smaller cam at 218/231 vs the BTR 220/232 cam. The L8P is rated at 523 hp and 546 tq but it is rated at 91 octane fuel. Since E85 is said to offer around 15% more power that puts the smaller L8P cam at around 602hp estimated with e85 fuel. This is not very far off of BTR's numbers with the factory intake. This is how my logic is working in this case. Eventually I will find out the truth but for now, I am intrigued by the idea that my 72 Blazer with a simple cam and valve spring swap may offer better power to weight numbers than a Jeep trackhawk. For those that like math this is that calculation. Trackhawk is about 5356 pounds with 707 crank horsepower. The Blazer is only about 4200 pounds and will have about 581 hp (going port injection loses about 9% vs direct injection). Theoretically, a 4200 pound blazer (given the same suspension, drivetrain and electronic wizardry as a trackhawk ) would only have to have 541hp to be as fast as a trackhawk. A different way to look at it would be that a 581hp blazer at 4200 pounds would be the equivalent of a 740hp trackhawk given the previously mentioned weight and apples to apples comparrison specs. I am not about to sit here and claim that my 72 K5 Blazer in 4wd high with approx 581 crank hp is going to outrun a trackhawk.......but.........come next summer if I can swing getting the dream of a supercharger accomplished, I sure do think that I could give it a good shot! Prochargers kit is supposed to add 150 hp. I think that 731 total hp may in fact do the trick! Power to weight ratio calculation indicates that a 4200 pound K5 with 731 hp would be like having a 932 hp trackhawk. I have seen a Silverado make 169hp additional with just adding a whipple and 8.95 pounds of boost. That aint much boost. Either way, I am done dreaming and calculating for the night. Sweet dreams! |
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