Fasteddi sbc to merlin 509 swap
#101
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
What a shitty rt.. but new best 60, et, and mph. So close to 130mph
1.41 60. 129.77mph. 10.35 et
1.41 60. 129.77mph. 10.35 et
Last edited by fasteddi; 06-24-2019 at 08:38 AM.
#102
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Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Fasteddi sbc to merlin 509 swap
So how goes the racing? You haven't updated in a while.
#103
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
So far so good.
Consistant 10.30s@130 when its not 100 degrees and humid out.
Hoping this fall I can swap to a dominator style carb/intake. I think the 950 carb and 4150 flange may be holding me back a little.
#104
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Car: 1987 IROC-Z
Engine: 406 on N20 w/ EFI
Transmission: P.B. 700R4
Axle/Gears: 12 bolt w/ 3.91
Re: Fasteddi sbc to merlin 509 swap
cool. don't flame me for asking, but I just don't know...
on the slip... why is it 1254 feet instead of 1320 feet? and 594 feet?
on the slip... why is it 1254 feet instead of 1320 feet? and 594 feet?
#106
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Here is a few pics from the weekend. Car is running great. Ran a few 10.40s@128mph with some 1.40-1.42 60 foots. The white slip is my 1st round win
Here is a sideways video, LB3 not sure what triggered the light, thankfully it was a time trial. Cars pulling some nice lil wheelies.
The following 2 users liked this post by fasteddi:
fbodyfreakls1 (09-09-2019), NoEmissions84TA (09-09-2019)
#107
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Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Fasteddi sbc to merlin 509 swap
10.466 on a 10.47 dial-in. You sure know your car!
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Re: Fasteddi sbc to merlin 509 swap
Nice progress! Honestly think the cam duration is abit low for your goals and rpm range but chris has experience in those heads and combos.
Have you tried more like 34-37 deg timing? Mine made best at 36-37
Curious what yours would dyno on chassis dyno. I dont know many guys with a big block auto trans/ th400 deals. My 555 didnt impress me on dyno but i only made 3 quick pulls. Even with 4500 intake with 102mm throttle, its seeing 2-2.5” of vacuum at wot. Dual 3” is too small so might also be killing power. Should have ran it at the track once. I guess i still can but in middle of turbo build
Have you tried more like 34-37 deg timing? Mine made best at 36-37
Curious what yours would dyno on chassis dyno. I dont know many guys with a big block auto trans/ th400 deals. My 555 didnt impress me on dyno but i only made 3 quick pulls. Even with 4500 intake with 102mm throttle, its seeing 2-2.5” of vacuum at wot. Dual 3” is too small so might also be killing power. Should have ran it at the track once. I guess i still can but in middle of turbo build
#109
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Nice progress! Honestly think the cam duration is abit low for your goals and rpm range but chris has experience in those heads and combos.
Have you tried more like 34-37 deg timing? Mine made best at 36-37
Curious what yours would dyno on chassis dyno. I dont know many guys with a big block auto trans/ th400 deals. My 555 didnt impress me on dyno but i only made 3 quick pulls. Even with 4500 intake with 102mm throttle, its seeing 2-2.5” of vacuum at wot. Dual 3” is too small so might also be killing power. Should have ran it at the track once. I guess i still can but in middle of turbo build
Have you tried more like 34-37 deg timing? Mine made best at 36-37
Curious what yours would dyno on chassis dyno. I dont know many guys with a big block auto trans/ th400 deals. My 555 didnt impress me on dyno but i only made 3 quick pulls. Even with 4500 intake with 102mm throttle, its seeing 2-2.5” of vacuum at wot. Dual 3” is too small so might also be killing power. Should have ran it at the track once. I guess i still can but in middle of turbo build
#112
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Yea the promaxx 317s I have are 115.2cc chambers. That's the most chris said he could mill off of them. Still, runs 10.30s at 9.6:1 comp and pump gas. Not too bad. I'm running 36 deg timing. Seems to be a good spot for it.
#113
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Update for the winter. No too much going on. Just doing some maintance on it. No performance upgrades this year. Plans for next year is a full rebuild and new slugs to up the compression from the 9.5:1 it has now to about 11:1 or so to keep it pump gas friendly. Also larger headers because I have a good feeling the ones I made in the spring of 18 are way too small for this power level. At the time my only intention was to run the merlin 509 as it was, which only pushed out about 540hp crank at best. And even then i was cutting it close with 2 inch primary's 3.5 inch collectors. Then I was only reving to about 5500 ish rpm. Now that's my stall roughly....
My little girl sure does love all the buttons on this car especially the transbrake button.
My little girl sure does love all the buttons on this car especially the transbrake button.
#114
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Figured id update this thread. Car has done well the last 2 years. Pretty conisitant st 10.10s-10.20s at 129-131mph.
Pretty basic stuff. 950cfm carb, 9.6:1 comp on pump gas. Car is still heavy at 3575lbs race weigh from the full interior, cage, frame ties, drag bar,bbc, and s60 rear. 3365lbs without me. A few video links below of some races this year.
I still feel this bbc swap was far the easiest way and most basic to run the times I am. Im sure if I went with a wild cam, more compression and reved it up more on shifts (I shift at 6500 and trap 6900) it wouldn't be too terrible difficult to make some high 9 second passes, bit its all about conisitanty now so i am just trying to make the same time over and over.
Pretty basic stuff. 950cfm carb, 9.6:1 comp on pump gas. Car is still heavy at 3575lbs race weigh from the full interior, cage, frame ties, drag bar,bbc, and s60 rear. 3365lbs without me. A few video links below of some races this year.
I still feel this bbc swap was far the easiest way and most basic to run the times I am. Im sure if I went with a wild cam, more compression and reved it up more on shifts (I shift at 6500 and trap 6900) it wouldn't be too terrible difficult to make some high 9 second passes, bit its all about conisitanty now so i am just trying to make the same time over and over.
Last edited by fasteddi; 06-05-2020 at 08:36 AM.
#115
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap
Been a while so I'm gonna update the thread.
I rebuilt the motor over the winter. No mods just a freshing up. Raced last weekend and the cars got alot more power now. Best 60 foot of a 1.319 and best eighth mile of a 6.36@107mph. Some cool pics of wheelies too. Going to limit the front suspention in hopes it keeps the front end down and goes a bit faster.
I'm car 191
I rebuilt the motor over the winter. No mods just a freshing up. Raced last weekend and the cars got alot more power now. Best 60 foot of a 1.319 and best eighth mile of a 6.36@107mph. Some cool pics of wheelies too. Going to limit the front suspention in hopes it keeps the front end down and goes a bit faster.
I'm car 191
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