540 90 VETTE
Member
http://www.youtube.com/watch?v=uzKetSeGL4E Here is a short video of my corvette big block project. Hope you all enjoy!
540 CORVETTE
- Thread starter 540 90 VETTE
- Start date
WELCOME TO THE SITE!
please post all the info related to that car that you can,especially about how you solved the common issues like clearance with the oil pan, windshield wiper motor K-frame , headers, the transmission install and related to the drive line , gauges, and anything else you found of interest or difficult.
and yes I,m always interested in all the info I can accumulate concerning the install of big block chevy engines installed in a c4 corvette
please post all the info related to that car that you can,especially about how you solved the common issues like clearance with the oil pan, windshield wiper motor K-frame , headers, the transmission install and related to the drive line , gauges, and anything else you found of interest or difficult.
and yes I,m always interested in all the info I can accumulate concerning the install of big block chevy engines installed in a c4 corvette
540 90 VETTE
Member
http://www.youtube.com/watch?v=war6y3sXxP4 Here is a better sound clip. All video's are done so far by my wife.
540 90 VETTE
Member
Thank you Indycars. No that was my wife walking. Steady hands. lol I have a lot of info and pictures on this build. Give me a little time to present it right. Looking forward to getting it tuned. Next month I will be able to tear it up.
540 90 VETTE said:
Now that the introductions are out of the way. You might want to
start a new thread in the appropriate forum. Looking forward to
reading your posts!
You might find this thread helpful with photos. There is a
section devoted to posting if that's all you need. Just page
down, near the bottom of the first post.
viewtopic.php?f=25&t=5595
I,m looking forward to as much info and detailed pictures, any any insights, into what you learned during the engine swap process, being posted as you can provide!540 90 VETTE said:
540 90 VETTE
Member
Hello Folks, it's been awhile since I've posted. Wanted to share some pictures from the Cocoa car show 2014. Since then the car was partially tuned. Made 517hp and 525lbs at the wheels. The OBD 1 computer is holding back the engine. The engine is a built by Scott Shafiroff 540ci, dynode at 700hp and 700 lbs of torque. Manifold was custom made by Hogan. Almost 10 degree angle on the throttle body for clearance. Trans is a 700r4 with 3400 stall with lockup. Trans was built by Finish line transmissions , it was tested up to 1500lbs of torque. Converter is Yank. The rear is a dana 44 with 3.33. As of now I am getting over 20mpg with my foot out of it. The car is brutal. At 50 you can roast the tires with 315s. After the corvette show I entered this week Oct 18, I will be installing a Holley HP system as a piggy back for engine management. I should be able to bring the numbers into the 600s at the wheels. Instead of the batch injection it will be sequential injection. Will see better numbers and also I can hook up laptop computer to this Holley system and give out my IP address and any tuner in world with a computer can tune this car while I drive around. The Holley computer has a wide band O2 and will also self tune. Pretty wild. Far cry from the chips being burnt. If you do need some chips burnt go and give TPIS a call and ask for Jim Hall. This guy has helped me for many years. As far as I'm concerned he is one of the best tuners out there. Anyway I will try to post more stuff regarding my build. I apologize for not getting back to some of my threads. Enjoy the pictures.
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thank you for posting the info and pictures!
please post as many details as you can about parts used in the build, problems encountered how they were solved and what you would do differently if anything, plus what your driving impressions are etc.
btw GREAT CAR!
please post as many details as you can about parts used in the build, problems encountered how they were solved and what you would do differently if anything, plus what your driving impressions are etc.
btw GREAT CAR!
540 90 VETTE
Member
Thanks, it's getting there, once it's fully tuned then I can play more. Here are some camshaft specs. Just under 10 to 1 compression. Full roller motor.
http://www.ultrastreet.net/engines/540_realstreet.php This is where I bought the long block from. It's the hot hydraulic version. Hogan claims a 50hp difference then carb. Plus the tune. It has 1300cfm throttle body with 60lbs injectors. I recommend the Racetronix company for the 10 gauge wiring for the fuel pump. Its a plug and play unit that runs under the sill and it connects to the 340lph Aero motive in tank fuel pump. I will have more pictures when I get some more time. Hope you enjoy. If you want to see some videos. https://www.youtube.com/watch?v=OeSFM_Z ... cZW31P5qpQ
http://www.ultrastreet.net/engines/540_realstreet.php This is where I bought the long block from. It's the hot hydraulic version. Hogan claims a 50hp difference then carb. Plus the tune. It has 1300cfm throttle body with 60lbs injectors. I recommend the Racetronix company for the 10 gauge wiring for the fuel pump. Its a plug and play unit that runs under the sill and it connects to the 340lph Aero motive in tank fuel pump. I will have more pictures when I get some more time. Hope you enjoy. If you want to see some videos. https://www.youtube.com/watch?v=OeSFM_Z ... cZW31P5qpQ
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I found the video of the chassis dyno very interesting. Noticed they sprayed the tires with a traction compound, which makes sense. Sounds really nice and I bet an excellent cruiser!
This must be what you are talking about, this add on to the base engine.
Base Engine Configuration:
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540 90 VETTE
Member
Rick, it is fun to drive, you have to respect it like the ocean. You can't be stupid. In the beginning of driving it, I learned really fast how not to drive it. With all that torque it's insane. But the great points are, you don't need low gears 3.33. is perfect as far as I'm concern. Over 20+ miles per gal. It will be much better with the holley hp system. The reason I didn't build my own engine is that I own a business and I don't have the time to be working on the car every weekend. Leave the trial and error to the professionals. All that R and D on the track. One of the other things I have to address is make your Big Block breathe. I tried to keep the car quiet but the engine needs proper exhaust flow. I went from Flowmaster 2 chamber mufflers which were too loud and droning. To Dynomax, Turbo mufflers which are too close to stock flow. Now I'm looking around for the correct flow and sound which is personal. Have a good evening!
philly
solid fixture here in the forum
welcome to the site! what an awesome swap... congrats and thanks for sharing it with us...
by the way you may to give these folks a holler for custom mufflers... http://www.spintechmufflers.com/
by the way you may to give these folks a holler for custom mufflers... http://www.spintechmufflers.com/
540 90 VETTE
Member
About two weeks ago I uncorked my 540ci, I had 3" going to the middle of the car and going down to 2.5 Dynomax super turbo mufflers. It was a mistake on my part for listen to the sales person with no knowledge on flow. Those mufflers were like stock mufflers. The flow was piercing.
Now continued the theme with 3" the whole way with dynomax ultraflow 3" straight through with down spouts. Sounds Sick, world of difference. It's a different car all together, Now all you can hear is the cam and deep sound. Below is a sound clip at night. Hope you all enjoy it.
https://www.youtube.com/watch?v=ccHFDgmr2t0
Now continued the theme with 3" the whole way with dynomax ultraflow 3" straight through with down spouts. Sounds Sick, world of difference. It's a different car all together, Now all you can hear is the cam and deep sound. Below is a sound clip at night. Hope you all enjoy it.
https://www.youtube.com/watch?v=ccHFDgmr2t0
yeah! dual 2.5" exhaust past the (X) pipe on a healthy 540 big block is forcing it to to piss exhaust thru a straw, its sure to restrict power noticeably, and even dual 3" may be a bit smaller than ideal in the upper rpm ranges
careful inspection of the dyno sheet and a look at the intake plenum vacuum, and exhaust back pressure readings, at every few hundred rpm as the engine accelerates,on the dyno and also watching the BSFC numbers and exhaust gas temps will give a marked indication of a restriction, but I found many dyno sheets don,t include these bits of data
careful inspection of the dyno sheet and a look at the intake plenum vacuum, and exhaust back pressure readings, at every few hundred rpm as the engine accelerates,on the dyno and also watching the BSFC numbers and exhaust gas temps will give a marked indication of a restriction, but I found many dyno sheets don,t include these bits of data
540 90 VETTE
Member
Thanks guys, always learning. I notice a big difference since I took out some of the restriction out. As far as the upper rpm. I know in theory I should be running 3.25 or 3.5" exhaust. The headers are 2"primary and 3" collectors. Believe it or not it's much more quiet with the 3" the whole way even at cruising. The motor makes power up to 6300 rpm that's red line. I have to say when I get on it now it screams power. Almost freighting, like is this trip necessary. lol Once I get the Holley Hp system in which I started working on, should give me the full potential of the motor. I will have more dyno video and I would like to take it to the track with drag radials. See what the car will do. I will try to post more pictures of the build I have tons of them. The best part of this build the motor sits below the stock hood. It really turns heads. Have a great night guys. If your in Florida let me know and I will give you a ride someday. It's insane. Anything built is better then bought.
540 90 VETTE
Member
Thanks Phil for the link, I ended up with Dynomax ultra flow mufflers straight through. 3" love them. You can hear them on the link on my thread.