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Fasteddi sbc to merlin 509 swap

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Old 06-28-2018, 08:33 AM
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Re: Fasteddi sbc to merlin 509 swap

where is the exhaust going to exit the car? Are you going straight pipes?
Old 06-29-2018, 08:25 PM
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Re: Fasteddi sbc to merlin 509 swap

He is going out through the fenders like Street Outlaws.
Old 07-01-2018, 08:07 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by NoEmissions84TA
He is going out through the fenders like Street Outlaws.

sorta down and out no holes in fenders lol
Old 07-03-2018, 04:54 AM
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Re: Fasteddi sbc to merlin 509 swap

I made some more progress with the forward facing headers going well so far definitely tight and I wish I had the extra cash right now for a manual brake conversion but the tubes come off individually so it should be easy to remove valve covers. Pass side will have much more room.

Mabey a turbo(s) will be going on this fall too.....


Old 07-04-2018, 07:01 PM
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Re: Fasteddi sbc to merlin 509 swap

Almost done one tube to go.



Old 07-09-2018, 04:45 AM
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Re: Fasteddi sbc to merlin 509 swap

About 9 hrs into them I am done. Just need to finish wrapping them and installing all the tubes. Moving battery to back, got a elec. Water pump installed, have a spacer and a quick fuel brawler 950cfm carb to toss on then well be racing hopefully in a week or probly more like 2.

I made some room on the drivers side really should have done a manual brake swap....



Old 07-13-2018, 03:25 PM
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Re: Fasteddi sbc to merlin 509 swap

Just made a order though straub technology's for a top end induction kit. Goal is 700-800hp peak power 7000 rpm. Will be custom promaxx 320cc heads milked to 114cc chambers, custom solid roller, port matched victor jr intake...exc heads flow 375/280 cfm at .700

Very excited to say the least. Has some lead time on the order so may get it on motor this fall or at least this winter. Would love to race it though this fall with new set up. Goals are high 9s which should be easily obtainable with 700 plus hp on my race thirdgen.
Old 07-13-2018, 03:28 PM
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Re: Fasteddi sbc to merlin 509 swap

I would order the promaxx heads bare, install my own parts and have a machine shop look at them before install after the issues I had.
Old 07-13-2018, 03:29 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by midias
I would order the promaxx heads bare, install my own parts and have a machine shop look at them before install after the issues I had.

That's exactly what they do. Then get this out of then 317s I mean

dyno below is with a hydro roller 532 that said mine will be close to this just more rpm. Mines a 509 and will be solid roller






Last edited by fasteddi; 07-13-2018 at 03:35 PM.
Old 07-13-2018, 06:46 PM
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Re: Fasteddi sbc to merlin 509 swap

Are you going to run the car with the engine the way it is now?
Old 07-13-2018, 08:37 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by NoEmissions84TA
Are you going to run the car with the engine the way it is now?

yes for at least a month or 2 possible the rest of the season.
Old 07-16-2018, 08:33 PM
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Re: Fasteddi sbc to merlin 509 swap

Headers complete and installed. Firing it up Wednesday hopefully. I'd say about 20 hrs total into the headers including wrapping them. Tig welded out.


Old 07-18-2018, 08:02 PM
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Re: Fasteddi sbc to merlin 509 swap

All done and ready to run. Just need to install trans.



Old 07-20-2018, 02:13 PM
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Re: Fasteddi sbc to merlin 509 swap

1 year after I got these brakes I'm finally tossing them on. Areospace drag front brakes. Easy to install just had to cut off a bit of weight on the spindle. In total I lost 19 lbs per side from the swap. That's 38 easy lbs of weight loss.

having the strange rear disk brakes already helped this car slow down from 125mph pretty easy, these are just icing on the cake.



Old 07-21-2018, 04:04 PM
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Re: Fasteddi sbc to merlin 509 swap

It runs



Old 07-21-2018, 11:44 PM
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Re: Fasteddi sbc to merlin 509 swap

Congratulations, sounds mean. I am starting on my next Trans Am and was going to go with a big block, but in AZ I need A/C and that engine looks like it will crowd out the components. Well, awesome anyway, but just helped me to make a decision. Post the vid up of its first tuned pull.
Old 07-21-2018, 11:59 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by fasteddi
Old 07-22-2018, 08:51 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by drdan1341
Congratulations, sounds mean. I am starting on my next Trans Am and was going to go with a big block, but in AZ I need A/C and that engine looks like it will crowd out the components. Well, awesome anyway, but just helped me to make a decision. Post the vid up of its first tuned pull.

I thought I could race today but to many little things to do so next Sunday I'll race it and be sure to post up vids. Adding this 950 brawler race carb today



Old 07-22-2018, 01:17 PM
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Re: Fasteddi sbc to merlin 509 swap

Idle and timing dialed in




Old 07-22-2018, 07:25 PM
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Re: Fasteddi sbc to merlin 509 swap

Sounds awesome
Old 07-22-2018, 08:28 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by BigDogBob
Sounds awesome

thanks hopefully it runs just as good as it sounds at the track
Old 07-23-2018, 09:05 AM
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Re: Fasteddi sbc to merlin 509 swap

Damn sounds great lets get it moving. Fastest BBC swap in the history of the board
Old 07-23-2018, 06:59 PM
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Re: Fasteddi sbc to merlin 509 swap

Here is the straub technologys custom solid roller cam we have on the way. Decent size for racing this 509

Camshaft
Lobe lift .4032/.390"
.020 284/300
.050 254/264
.200 176/179
C/Ls 103/113
LSA 108

Chris Straub,
Old 07-23-2018, 09:09 PM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by midias
Damn sounds great lets get it moving. Fastest BBC swap in the history of the board

Thanks bud I try to keep the builds going and not stall out like so many do.
Old 07-24-2018, 11:43 PM
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Re: Fasteddi sbc to merlin 509 swap

Your tach now responds as it should. What do think was the problem before?
Old 07-25-2018, 04:54 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by NoEmissions84TA
Your tach now responds as it should. What do think was the problem before?

I bought a new one.... that other one was about 8 years old and i have no idea why it was so slow. But the new one is much better!!! And has a memory feature
Old 07-27-2018, 05:04 AM
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Re: Fasteddi sbc to merlin 509 swap

From blown up engine to race ready in 3 weeks.

Thankfully my v6 springs are still holding up this big block and giving me some clearence.




Old 07-28-2018, 04:54 AM
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Re: Fasteddi sbc to merlin 509 swap

1st piece of the puzzle is here and the 2nd is on the way. Straub should be sending out their stuff in the next few weeks. Got alot of work to do this winter but I'll have the parts to have a solid mid 9 second car.

tsi custom to the straub stuff 5500 rpm bolt together super 8 converter. And ati trans rated at 950hp



Old 07-30-2018, 05:23 AM
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Re: Fasteddi sbc to merlin 509 swap

Well the car did ok this weekend. 3 passes and none were much of any good. 1st pass 11.25@120mph 1.57 60 foot. This pass was very very lean so i went up 4 jet sizes and also noticed my timing was only 32 so added 5 degrees to bring it in at 37. Assuming that was going to help immensely and get me into the high 10s....well after that I chased ignition box issues the rest of the day finally finding that the 6al box had a loose power wire and was making the car break up down the track because of vibrations with the loose wire.

in 2 weeks I'll be back out there. The thing I did notice is my 60 foot picked up big time from the timing and jet change along with squirters. From 1.57 to a 1.46 on the 2nd pass but the car was breaking up half track becuae of the wiring issue so I'm seeing 10.90s with 60s in the 1.40s

Crappy slip attached. Also weighed car the big block definitly weighed me down. 3520 race weight now.

I'm 191 btw




Last edited by fasteddi; 07-30-2018 at 05:53 AM.
Old 07-30-2018, 07:53 AM
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Re: Fasteddi sbc to merlin 509 swap

Nice first run you will be in the 10s in no time
Old 08-06-2018, 05:47 AM
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Re: Fasteddi sbc to merlin 509 swap

Update. Well the cars consistant. 11.25@120mph 3 times in a row yesterday.

noticed its lean on the afr guage and plugs too. 13 5-13.8 afr most of the way down the track. My guess my 7 year old walbro 255 is finally dying. I have some areo. 340lph pumps on hand I plan to toss in. I'm losing out on alot of hp from being so lean ......

I finally weighed the car. 3375 without me race ready. 3560 with me race ready. Heavy car. Alum head swap will drop that a solid 80-100lbs so in excited for the straub stuff to come in the next few weeks.

950+hp ati trans and bolt together tsi 5500 custom stall . Just need the straub stuff and we have a 9 second combo just waiting to go in.







Last edited by fasteddi; 02-27-2019 at 04:46 AM.
Old 08-06-2018, 07:23 AM
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Re: Fasteddi sbc to merlin 509 swap

Just curious why you think it's the fuel pump? Is it not responding to bigger jets?
Old 08-06-2018, 09:32 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by 87v6Bird
Just curious why you think it's the fuel pump? Is it not responding to bigger jets?

Correct among a few other things.
Old 08-20-2018, 04:31 AM
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Re: Fasteddi sbc to merlin 509 swap

So I had a best 1/8 mile of 7.13@96.8mph.... not too bad for a boat anchor shifting at 5800rpm lol


Man that's one heavy motor. My car now weighes 3560 race weight... yikes!! Playing with the tune after adding a areo 340lph stelth pump, I was on a 11.13@121mph pass when using run completion. Slip below. I was peddling a bit then on brakes and still broke out. Dangit because I treed the crap outta him. Either way it was a fun weekend at the track


Last edited by fasteddi; 08-20-2018 at 04:36 AM.
Old 08-20-2018, 04:35 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by fasteddi
Correct among a few other things.

so I found that the pump filter and strainer was plugged with crap. That pump had been in there for about 6 years of racing exc. So while I was in there I swapped pumps just because.
So keep in mind I ran mid 10s with the pump like this with the sbc....amazing

Old 09-11-2018, 03:15 PM
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Re: Fasteddi sbc to merlin 509 swap

Well I got all of the parts I need now to hopefully build a 750 horsepower big block 509.

straub solid roller cam specs in pic.

Promaxx 320cc heads assembled by straub and milled for 114cc chambers. 10:1 compression.

custom ported victor jr intake.

our goal was 700+ hp. Peak hp 6800rpm shift point on car at 7200rpm.

I have a ati 850hp rated trans to toss in with it and a custom tsi bolt together converter built for this engine to stall at 5500

all this stuff will be going in this winter.







Old 09-15-2018, 11:56 AM
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Re: Fasteddi sbc to merlin 509 swap

Got the goodies out and inspected them. Cant wait to use these goodies.

the size dif between the afr 195s I had and these are freaking nuts...





Old 09-16-2018, 10:39 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by fasteddi
the afr 195s ...
Speaking of which, what's the plan for those?
Old 09-17-2018, 04:23 AM
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Re: Fasteddi sbc to merlin 509 swap

Originally Posted by skinny z
Speaking of which, what's the plan for those?

Not much. I had them for sale for quite some time. No one wants to pay 1200 bucks for used heads so I'm going to keep them. Lets face it afr are not cheap for a reson. They are the best sbc 550hp or less head out there so mabey one day I'll build another sbc.
Old 09-20-2018, 11:19 AM
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
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Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Here are the flow numbers on the heads I got from chris struab. Not too bad for 317cc runners.
Old 02-11-2019, 04:25 AM
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Car: 1991 Camaro RS
Engine: BBC 509 Merlin ii 9.6:1 pump gas
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Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Finally yesterday I began to tear into the 509.

Got the solid roller cam in, the moral sportsman solid rollers in, and checked piston to deck clearence etc.

I need to order head gaskets, then measure the pushrods and send the measurements off to chris straub. Then I'll be able to get all that installed and the new heads on, the new 2 piece timing cover and the motor will be ready to go.

With .400 lobe.. and that durration... wow this cam will be a monster.

Also going with a manual brake booster so I can have some more room arround the drivers side header. The pass side was ridiculously easy to take off thankfully.

The goal is still 9.90s, and in my personal opinion it will be more like 9.60-9.80s but aim high to make sure I can meet my goal.

A Ati custom 950hp rated th350 is installed already along with a custom tsi 5500 rpm bolt together billet converter.





Old 02-11-2019, 07:50 AM
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Re: Fasteddi sbc to merlin 509 swap

cant wait to see the improvement
Old 02-18-2019, 05:16 AM
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Car: 1991 Camaro RS
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Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Heads are off, and heavy 82lbs each or 164lbs a pair. The alum promaxx heads weight 42lbs each or 84lbs total. A bit off the 78lbs promaxx advertises but that might be unassembled.

Just waiting on gaskets ans such then well toss it all back together.

Big difference in the merlin and victor jr intake opening. Helps it was port matched to the heads etc.






Old 02-27-2019, 04:36 AM
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Car: 1991 Camaro RS
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Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Update just waiting on pushrods to come that I measured for and we can finish tossing it all together.

I am removing the brake booster for a manual set up to allow me some more room arround the headers.

ARP head studs installed over the ole manley bokts. MLS. 027 head gaskets, MLS exhaust gaskets, 2 piece adjustable timing cover, billet full roller timing set, ext.

The goal is by end of March to make this puppy run. Thankfully the hard stuff is done. Cam is degreed and installed to straub specs, cam end play set, push rod length measured.

Still worries me that this car may easily run under 10 flat and require me to do some safety additions to stay legal. Such as a sfi scatter shield, 8pt cage vs the 6pt set up I have now. Etc. I dream of what this car will be like letting of of the brake and the car launches at 5500rpm and I shift at 7k. Wheels up indeed. Which is nothing new for the car but a 1.47 60 foot was my prior best. I would be dissapointed with anything slower then 1.39 60s.

The one good thing is everything drive train wise can handle the tq and hp. ATI 950HP rated trans (David Caine from ATI is behind me to see how this set up does. He did a few custom things to the trans to extend lift and free up hp.) Its not a off the shelf trans by any means. 1200HP rated strange S60 rear end, 1200HP chrome moly 3.5 inch D. SHAFT. etc.





Last edited by fasteddi; 02-27-2019 at 04:42 AM.
Old 06-10-2019, 05:44 AM
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Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Update.

Not as fast as I hoped for but ran good. 10.44 and a 10.47 both at 128mph.

32 deg timing. Running lean still. Takes alot of fueling to dial this thing in.

Still short shifting to a extent 6500 instead of 7200 like it's designed to do. I want to dial in the fueling before I really lay into it

I think i have a 10.0 10.1 in it without a doubt. My 60 is not as fast as I'd like so I'll have to play with the suspension adjustments a bit and the rev limit on the 2 step.

Old 06-16-2019, 11:10 PM
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Re: Fasteddi sbc to merlin 509 swap

crazy you go from the baddest 6 cyl third gen around to a sbc to a bbc, wham bam lol good work man, hope you get that beast in the 9s!
Old 06-17-2019, 12:15 AM
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Re: Fasteddi sbc to merlin 509 swap

.006 RT
IMPRESSIVE.
Old 06-17-2019, 05:06 AM
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Re: Fasteddi sbc to merlin 509 swap

Thanks guys.

Races rained out again.... damn weather.
Old 06-19-2019, 10:54 AM
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Re: Fasteddi sbc to merlin 509 swap

Going to a test and tune tonight. No rain in forecast so wish me luck. I'll be sure to update with slips and or vids.
Old 06-20-2019, 05:08 AM
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Transmission: ATI pro th350 sfi case. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Fasteddi sbc to merlin 509 swap

Well 1st time going to a test and tune at Milan, wow the track sucked. Very slick. Lots of dot cars taking the rubber off the track.

Considering I couldnt hook up worth a crap, i dialed in the t brake button and got some rts i can live with. .032 and .033 on the last 2.

2 step set to 3000rpm. Shifting at 6600 trapping at 6900rpm. 28 total timing Best of a 10.50@127mph. Afrs finally under control. 12.8-13.0


Car 191

1.42 60 foot
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