edgehanger Posted June 8, 2012 Report Posted June 8, 2012 Me and this motor has a long wicked history together. Long story short. I let a fuck head nobody put his hands on it and now i gotta pretty much start over. I drove all the way from Atlanta to Michigan to buy this bike and it has been ruined. So the engine was a Brad Tyson 535 however my crank has been stolen so the guy that stole it said it was a 115 rod 10mil. He said it didn't have a spacer plate and had a .019 base gasket. I got a 120 rod i wanna put in the cheetah pv's. My question is can i run the 120 rod with no spacer? If so what pistons will i need? Base gasket thickness? It has a 73mm bore. When the fuck head that ruined it dynoed it it only made 95ish hp on race gas. That just won't cut it . Im looking for 130+ on alky. Any advice is greatly appreciated. Quote
WINDYCITYJOHN400 Posted June 8, 2012 Report Posted June 8, 2012 Cut your losses. The pistons are VERY expensive and your not going to hit 130+ with that motor. Try a big cub or small DM. Even fully ported the Cheetah doesn't hit the HP per cc numbers that other motors will. Quote
edgehanger Posted June 8, 2012 Author Report Posted June 8, 2012 Cut your losses. The pistons are VERY expensive and your not going to hit 130+ with that motor. Try a big cub or small DM. Even fully ported the Cheetah doesn't hit the HP per cc numbers that other motors will. Awe man that is discouraging. So whats the average hp a 10 mil cheetah is making on alky? Can't cut losses because i have almost everything to make it run except for a 115 rod 10 mil crank. So how expensive are the pistons and which ones would i need? Quote
coryv4 Posted June 8, 2012 Report Posted June 8, 2012 Awe man that is discouraging. So whats the average hp a 10 mil cheetah is making on alky? Can't cut losses because i have almost everything to make it run except for a 115 rod 10 mil crank. So how expensive are the pistons and which ones would i need? dont listen to windybitch hes scared of vagina. personally i believe a well set up ported cheetah on alky could make in the upper 120s Quote
WINDYCITYJOHN400 Posted June 8, 2012 Report Posted June 8, 2012 Well with the right builder you can get close. (125ish with the right builder and a perfect dyno tune.) Plus the 10 mill Cheetahs work a lot better than the 4 mills. But your piston costs are really high. If your thinking your going to just slap this thing back together, you might want to re-think that. The Cheetahs need a dome that is dialed in for the squish, so the key to power in these motors is the overall combo. You might be best to send it back to the original builder an have them get it set back up for you. That way you don't run into a dome to piston clearance issue. I don't want to come down too hard on the motor because Brad has done some nice motors, so I'm assuming this is no Trinity build. LOL. But the cubs are very strong per CC vs. most of the other cylinder designs out there. From my experience with the 4 mill cheetahs...a fully built 485-492 Cheetah makes about the same power as a built 421 cub. If you don't want to send it to Brad....Call Cameron at Redline Racing (He just built my 10 mill cub) or Tim at Titan Racing (Helped me fix my 472 cheetah). Quote
WINDYCITYJOHN400 Posted June 8, 2012 Report Posted June 8, 2012 dont listen to windybitch hes scared of vagina. personally i believe a well set up ported cheetah on alky could make in the upper 120s Strong words from someone who's entire signature is filled with nothing but Gay sex quotes. I've never met anyone so fixated on a penis that isn't his. Quote
coryv4 Posted June 8, 2012 Report Posted June 8, 2012 Strong words from someone who's entire signature is filled with nothing but Gay sex quotes. I've never met anyone so fixated on a penis that isn't his. what does a sig filled with gay quotes have to do with this thread? Quote
BigRed350x Posted June 8, 2012 Report Posted June 8, 2012 Well with the right builder you can get close. (125ish with the right builder and a perfect dyno tune.) Plus the 10 mill Cheetahs work a lot better than the 4 mills. But your piston costs are really high. If your thinking your going to just slap this thing back together, you might want to re-think that. The Cheetahs need a dome that is dialed in for the squish, so the key to power in these motors is the overall combo. You might be best to send it back to the original builder an have them get it set back up for you. That way you don't run into a dome to piston clearance issue. I don't want to come down too hard on the motor because Brad has done some nice motors, so I'm assuming this is no Trinity build. LOL. But the cubs are very strong per CC vs. most of the other cylinder designs out there. From my experience with the 4 mill cheetahs...a fully built 485-492 Cheetah makes about the same power as a built 421 cub. If you don't want to send it to Brad....Call Cameron at Redline Racing (He just built my 10 mill cub) or Tim at Titan Racing (Helped me fix my 472 cheetah). I agree with what john is saying here. If you can afford to get the complete combo right it would be a good runner. Its definitely not an engine you want to slap together with random parts. I spent many hours on the phone talking to different builders before i ever even ordered parts for my 485 cheetah. - Jared Quote
edgehanger Posted June 8, 2012 Author Report Posted June 8, 2012 Well with the right builder you can get close. (125ish with the right builder and a perfect dyno tune.) Plus the 10 mill Cheetahs work a lot better than the 4 mills. But your piston costs are really high. If your thinking your going to just slap this thing back together, you might want to re-think that. The Cheetahs need a dome that is dialed in for the squish, so the key to power in these motors is the overall combo. You might be best to send it back to the original builder an have them get it set back up for you. That way you don't run into a dome to piston clearance issue. I don't want to come down too hard on the motor because Brad has done some nice motors, so I'm assuming this is no Trinity build. LOL. But the cubs are very strong per CC vs. most of the other cylinder designs out there. From my experience with the 4 mill cheetahs...a fully built 485-492 Cheetah makes about the same power as a built 421 cub. If you don't want to send it to Brad....Call Cameron at Redline Racing (He just built my 10 mill cub) or Tim at Titan Racing (Helped me fix my 472 cheetah). Since its drag poted by Brad i think i'll give him a holler. I imagine he's a pretty busy guy. I have the cheetah head that came with it and the pistons just no 115 rod. it was a absolute beast on race gas and shearers thats why i think the smuck that dynoed it did something wrong. By dialing in the dome i suspect you mean the angle? 125ish ay? Well im going for it . Maybe trade the 120 rod for a 115. I really appreciate the info man Quote
edgehanger Posted June 8, 2012 Author Report Posted June 8, 2012 I agree with what john is saying here. If you can afford to get the complete combo right it would be a good runner. Its definitely not an engine you want to slap together with random parts. I spent many hours on the phone talking to different builders before i ever even ordered parts for my 485 cheetah. - Jared Glad you chimed in because that was exactly what i thought i could do. What kinda pipes these cheetahs like or should i just see what Tyson recommends for his port work? i got some oof cpi with silencers but i can't tell if they're bb or sb. Quote
WINDYCITYJOHN400 Posted June 8, 2012 Report Posted June 8, 2012 My ported Cheetah's liked the Shearer pipes over the CPI's by a total of 14HP! But your motor is a 535 and I know more than a few strong running 535's that run the BB CPI's. I think the Shearer BB is going to be your best bet.....But I would check with the builder because some guys like to build the motor to fit the pipes they prefer. Quote
edgehanger Posted June 8, 2012 Author Report Posted June 8, 2012 My ported Cheetah's liked the Shearer pipes over the CPI's by a total of 14HP! But your motor is a 535 and I know more than a few strong running 535's that run the BB CPI's. I think the Shearer BB is going to be your best bet.....But I would check with the builder because some guys like to build the motor to fit the pipes they prefer. You know anyway to tell if my oof cpi's with silencers is BB or SB? Also the cases i was intending on using have been trenched for the 120 rod, bored for t-rex cylinders which my cheetahs will not work on, can i uses the cases to go back to a stock motor? In other words can i stick a stock crank in and some stock cylinders on it to sell so i can offset the cost of the 535 rebuild? Quote
BigRed350x Posted June 8, 2012 Report Posted June 8, 2012 You can, but with the case volume added by the trench it will run like ass. Jared Quote
BigRed350x Posted June 8, 2012 Report Posted June 8, 2012 My ported Cheetah's liked the Shearer pipes over the CPI's by a total of 14HP! But your motor is a 535 and I know more than a few strong running 535's that run the BB CPI's. I think the Shearer BB is going to be your best bet.....But I would check with the builder because some guys like to build the motor to fit the pipes they prefer. Mine also seems to like the shearer pipes. It had cpi's on it before and just going on seat of the pants riding, it has more in the mid and top with the big bore shearer's. Jared Quote
edgehanger Posted June 8, 2012 Author Report Posted June 8, 2012 You can, but with the case volume added by the trench it will run like ass. Jared I didn't even think about case volume Awe well...i'll just pack jb weld in it till it looks about right then. lol I think i'll call it a reverse trench and sell it on ebay Maybe some clay that way i can put the cases together spin the crank and mold it ...Thanks for the help man...Gonna see if i can get in touch with Brad today Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.