Any updates from anyone?
Any updates from anyone?
We've installed about 8 of the GT350 manifolds in the past month. Some with the 87mm TB and some using the stock TB with a spacer. Power is great, throttle response amazing, and the cars feel like they want to pull past 8,000 RPM with ease! All of our customers have been extremely impressed. We make them fit with all types of air kits and we offer a complete package that includes the GT350 manifold, TB, and CAI with install instructions and hardware for install. It will be released on our website over the next week or so. If you have any questions call us at 732-780-0770
JimIII
Awesome. So what TQ and HP gains have you seen?
Average of 25-30 HP peak with about 50-60 over the curve. TQ numbers don't pick up until after 5,000 RPM but from there to red line we see about 20-25 TQ gained. The important thing is the Torque does not drop at the hit of the throttle and take a longer time to recover like with the Boss or CJ manifold.
Anybody done the swap on a boosted setup yet? I am running a Procharger setup and am wondering if i should add this to the list of spring time upgrades.
the s550 coyote is not the same as the s197 coyote. Its essentially a revised roadrunner engine. We have a more aggressive intake cam (cobra jet specs) , a boss exhaust cam, all the boss valvetrain but our heads were cast with that in mind so it didnt get cnc work, boss crank, boss rods and bearings. We only lack a boss manifold, timing hardware and forged pistons.Not sure what exactly what you mean by it won't let you go past 7500rpm. But IMO, you probably don't have the supporting mods to wind the motor to 8k reliably. I certainly wouldn't wait until you have headers or injectors for a better tune since most tuners would probably send you a tune revision free for basic changes. But without cams/springs, and probably a clutch, I don't know if it even makes sense to rev it that high.
Maybe others have had a different experience and will prove me wrong. But with the GT350 manifold, same tb/intake, a good tune (AED) and Kooks long tube headers I still make peak power before 7500rpm.
the s550 coyote is not the same as the s197 coyote. Its essentially a revised roadrunner engine. We have a more aggressive intake cam (cobra jet specs) , a boss exhaust cam, all the boss valvetrain but our heads were cast with that in mind so it didnt get cnc work, boss crank, boss rods and bearings. We only lack a boss manifold, timing hardware and forged pistons.
To spin to 8000-8100 opg, timing gear and dampner are suggested. No headwork or clutch needed.
According to at least three well known coyote builders ive spoke with tell me they are 263 for the intake with 13mm lift which is cobra jet spec. So im going to believe them.The S550 does not have Cobra Jet cams. Intake cams are 260 degree duration (same as S197) with 13MM lift. The exhaust cam is indeed from the Boss.
The SCJ manifold is a very good intake to run on these engines.
According to at least three well known coyote builders ive spoke with tell me they are 263 for the intake with 13mm lift which is cobra jet spec. So im going to believe them.
How is normal and part throttle driving with the GT350 throttle body? Are the tuners figuring out what is required to tune them or are they using data from SCT or HP? Asking because I have a GT350 manifold on my 11 already, but would like to use the throttle body as well. I can't find out any solid info on weather the throttle body will work ok without driveability issues.