Boosted 502 Ramjet
10-28-2011, 09:47 PM
#1
Boosted 502 Ramjet I'm thinking about buying a 70 Monte Carlo with a 502 Ramjet.It has a Vortech blower but no intercooler.I will probably add a meth and an intercooler.Rear is a 9" Ford 3:73 and a 700R4 with an Art Carr 3500 stall.I'll probably replace the trans with a 4L80E.Everything is 6-8 years old and I don't know which Vortec is on the car.He has all receipts and the car seems to run well.He said it makes approximately 680BHP and 690#s of torque.I'm not looking to set any records but low 11s-high 10s would make me happy.I already have a 9 second C5.Has anyone heard of a 502 with a Vortech and how tunable is the stock Ramjet computer?Anyone have any idea on how many MPG I should exspect.
Thanks
Thanks
Last edited by 396375; 10-28-2011 at 10:05 PM.
10-31-2011, 10:24 AM
#2
The owner that had my 69 before me had a Vortech (i don't know which one) on a 502 Ram Jet, he ditched it for a Holley EFI setup (easier to tune from what he told me). Expect about 8-12 mpg, but overall it sounds like it would be a fun street car.
Last edited by 93Z2871805; 10-31-2011 at 10:31 AM.
10-31-2011, 11:35 PM
#4
This was on an M22 with a Gear Vendors unit. At the time this mileage was calculated the tune wasn't spot on, but was close. That 8-12 mpg was combined (with a heavy foot), I'd say closer to 18 mpg highway keeping your foot out of it.
11-10-2011, 12:13 AM
#5
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comparing apples to oranges here i know but i have a 1992 chevy 2500 4x4 with a ram jet 350. and towing a 06 gto(4000+) and a u-haul trailer(2300) my truck got 16.5mpg going from spokane wa to bremerton wa. unloaded the truck gets about 22mpg on the freeway and 17-19 in town. very nice set up for what i use it for.
