Ok guys I need some advice. I've built an 88 Notchback Mustang as a street/strip car. It is becoming more strip than street lately. Currently it has a 408 Windsor based motor with a Dart Block and some TFS R CNC Race heads and TFS Box R intake. I'm at a cross roads. I've built the car for boost with about 8.85:1 compression but am not sure if I want to go that route. I'm getting really heavy into racing, especially bracket racing and am worried about consistency with a blower car. Right now I can dial my car into thousandths of a second. It is consistent as hell. I am looking at pulling the motor over the winter and boring it out to a 434 and sticking some flat tops in it or even domes. I would like to see 10's. Even high 10's is fine with me. Here's the second part of my dilemma. Stay EFI or go carb? I understand the stock computer system for Fox bodies is only good to about 6500RPM and then it starts breaking up. Would it be easier just to go to a carb and run the rpm's like hell or change to something like a Big Stuff system? I know absolutely 0 about carbs, I've been an EFI guy since I've gotten into cars. I'm scared I won't know enough about the tuning end of carbs and will ruin my consistency as well. Can you just set most carbs and forget them as long as you don't stray too far from home? I need opinions with my build guys, here are my choices:
1 Keep motor the same and just put an F1 or F3 Blower on it and have a monster but in my opinion less consistent, pro's = don't have to touch motor already built for it. cons = probably close to $9000 to get blower, intercooler, injectors, fuel system, MAF and I'm not sure I can afford that the way the Oilpatch is looking, especially over the Winter and into next year, consistency for bracket racing.
2 Bore motor out to 434 and keep EFI system. Pro's = I like EFI consistency and am familiar and comfortable with it. Cons= Have to upgrade computer to spin to high RPMS where power band for SBF's is.Supporting parts ie. injectors, MAF, Pistons, Machining costs
3 Bore Motor out and go Carb. Pro's = No more electrical or computer headaches, relatively cheap. Cons = have to buy new intake, carb, fuel pump, pistons, machining costs and no experience with carbs.
I need serious opinions guys. My friend who is going to help me with the build is pushing me to go carb because he is a carb guy and knows nothing about EFI. I just don't feel comfortable with it since I know nothing about them. I like my efi even though they have their own issues sometimes. Do I have justification to worry about going carb or should I just say screw it and do it.
Thanks
PS, here's pics of me in the car at a Division 6 National Open a few weeks ago. She's so close to lifting the tires. I think the second pick was when I hit my personal best 60ft, 1.57. She wrinkled the tires pretty good anyways. Forgive the car dirtiness. It rained like crazy the night before and the road out to the track and the track were still mucky in the pits.
http://www.pbase.com/nitroimage/image/115815412
http://www.pbase.com/nitroimage/image/115814674
1 Keep motor the same and just put an F1 or F3 Blower on it and have a monster but in my opinion less consistent, pro's = don't have to touch motor already built for it. cons = probably close to $9000 to get blower, intercooler, injectors, fuel system, MAF and I'm not sure I can afford that the way the Oilpatch is looking, especially over the Winter and into next year, consistency for bracket racing.
2 Bore motor out to 434 and keep EFI system. Pro's = I like EFI consistency and am familiar and comfortable with it. Cons= Have to upgrade computer to spin to high RPMS where power band for SBF's is.Supporting parts ie. injectors, MAF, Pistons, Machining costs
3 Bore Motor out and go Carb. Pro's = No more electrical or computer headaches, relatively cheap. Cons = have to buy new intake, carb, fuel pump, pistons, machining costs and no experience with carbs.
I need serious opinions guys. My friend who is going to help me with the build is pushing me to go carb because he is a carb guy and knows nothing about EFI. I just don't feel comfortable with it since I know nothing about them. I like my efi even though they have their own issues sometimes. Do I have justification to worry about going carb or should I just say screw it and do it.
Thanks
PS, here's pics of me in the car at a Division 6 National Open a few weeks ago. She's so close to lifting the tires. I think the second pick was when I hit my personal best 60ft, 1.57. She wrinkled the tires pretty good anyways. Forgive the car dirtiness. It rained like crazy the night before and the road out to the track and the track were still mucky in the pits.
http://www.pbase.com/nitroimage/image/115815412
http://www.pbase.com/nitroimage/image/115814674