Here is my current combo which has run a best of 14.5 @ 96 on an easy launch
68 Mustang Coupe, 289, .030 flattops, 9.1:1 CR, stock rods w/ARP, Ported Windsor D0OE, 1.85/1.55, Crane 222@.050, .498/.498, RPM Intake, Longtubes, Bigs 650 DP, T5Z w/.059 OD, 9" Locker, 4.30 gears, 31 spline moser axles. full MSD.
Ok. so here is the combo I am building
306 roller, 9.2:1 CR, ARP everything, AFR 185's, Jay Allen cam: base specs: 218/224 552/541 114LSA, RPM Intake, 650DP, T5Z, 4.30 gears, 26X10.5 E.t. Streets, MSD.
Jay didn't give me full valve timing specs yet but from what he said his cam would outperform the XE274hr that I was going to run, he said it is less agressive but would increase the dynamic compression to ~165-170 psi and require 91-93 octane. I trust what he says but I was always under the impression that more power came from bigger a bigger cam.
I'm curious what you guys think my new combo will put down and how much I will gain e.t. wise. Goal starting out in this build was low-mid 12's.
it just seems hard (for me) to believe that I'll knock 2 second off my e.t. from 17 cubes, smaller cam, and better heads. The general perception I get from others is that going from 289-302 won't gain me much, a lot of people keep asking why I didn't go with something bigger, but I think their idea is that bigger is better. Just curious what you guys think?
68 Mustang Coupe, 289, .030 flattops, 9.1:1 CR, stock rods w/ARP, Ported Windsor D0OE, 1.85/1.55, Crane 222@.050, .498/.498, RPM Intake, Longtubes, Bigs 650 DP, T5Z w/.059 OD, 9" Locker, 4.30 gears, 31 spline moser axles. full MSD.
Ok. so here is the combo I am building
306 roller, 9.2:1 CR, ARP everything, AFR 185's, Jay Allen cam: base specs: 218/224 552/541 114LSA, RPM Intake, 650DP, T5Z, 4.30 gears, 26X10.5 E.t. Streets, MSD.
Jay didn't give me full valve timing specs yet but from what he said his cam would outperform the XE274hr that I was going to run, he said it is less agressive but would increase the dynamic compression to ~165-170 psi and require 91-93 octane. I trust what he says but I was always under the impression that more power came from bigger a bigger cam.
I'm curious what you guys think my new combo will put down and how much I will gain e.t. wise. Goal starting out in this build was low-mid 12's.
it just seems hard (for me) to believe that I'll knock 2 second off my e.t. from 17 cubes, smaller cam, and better heads. The general perception I get from others is that going from 289-302 won't gain me much, a lot of people keep asking why I didn't go with something bigger, but I think their idea is that bigger is better. Just curious what you guys think?