Best C.R. for 30psi boost
Thread Starter
Teching In
Joined: Jun 2021
Posts: 29
Likes: 1
From: Texas
Best C.R. for 30psi boost Next month I order a twin turbo setup for my stang. 347cid, everything race and Dual 900hp Garrett G35-900 turbos.
What is a good safe CR that still has power?
I was thinking 8.5 or lower?
I estimate boost levels around 30psi. I will install a boost controller also. External wastegates.
Is the Garrett G35 (900hp) a good turbo if I get them with ceramic ball bearings?
My first turbo setup. Was running a Vortech s-trim blower. Time to upgrade!
=Thanks everyone!
What is a good safe CR that still has power?
I was thinking 8.5 or lower?
I estimate boost levels around 30psi. I will install a boost controller also. External wastegates.
Is the Garrett G35 (900hp) a good turbo if I get them with ceramic ball bearings?
My first turbo setup. Was running a Vortech s-trim blower. Time to upgrade!
=Thanks everyone!
Last edited by bryan1000; Jun 21, 2021 at 10:43 PM. Reason: spelling mistake
Next month I order a twin turbo setup for my stang. 347cid, everything race and Dual 900hp Garrett G35-900 turbos.
What is a good safe CR that still has power?
I was thinking 8.5 or lower?
I estimate boost levels around 30psi. I will install a boost controller also. External wastegates.
Is the Garrett G35 (900hp) a good turbo if I get them with ceramic ball bearings?
My first turbo setup. Was running a Vortech s-trim blower. Time to upgrade!
=Thanks everyone!
What is a good safe CR that still has power?
I was thinking 8.5 or lower?
I estimate boost levels around 30psi. I will install a boost controller also. External wastegates.
Is the Garrett G35 (900hp) a good turbo if I get them with ceramic ball bearings?
My first turbo setup. Was running a Vortech s-trim blower. Time to upgrade!
=Thanks everyone!
TECH Regular
Joined: Jun 2021
Posts: 497
Likes: 148
From: Shlumpt, TX
It isn't totally about CR it is also about fuel! What kind of fuel are you going to run? If you are running race fuel you probably could hit 10:1. Meth and e85 you would maybe be safe at 9-9.5.
93 Octane not gonna make it though lol
93 Octane not gonna make it though lol
Thread Starter
Teching In
Joined: Jun 2021
Posts: 29
Likes: 1
From: Texas
Stock CR for my 1992 Mustang is 8.8
Thanks for all the good info everyone.
I will be running either e85 or e98 (two different tunes on my ECU).
I feel safe @ 9:1, so I might as well keep it at stock. It was always safe and powerful with the old s-trim blower.
I believe E85 is 105 octane and E98 is even more. No meth or water injection, or is it worth the money and performance gains?
Thanks for all the good info everyone.
I will be running either e85 or e98 (two different tunes on my ECU).
I feel safe @ 9:1, so I might as well keep it at stock. It was always safe and powerful with the old s-trim blower.
I believe E85 is 105 octane and E98 is even more. No meth or water injection, or is it worth the money and performance gains?
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TECH Fanatic
Joined: Feb 2015
Posts: 1,080
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What rpm range? Which dictates cam events. Which results in dynamic compression based on static CR. Too low, it'll be a dog. Too high, will need water/meth or better fuel. What IC? Detonation is influenced as much by CC heat as cylinder pressure.
Plan bigger turbo(s). You're much better off in the center of the compressor map than on the outskirts as a heat pump.
Plan bigger turbo(s). You're much better off in the center of the compressor map than on the outskirts as a heat pump.
Thread Starter
Teching In
Joined: Jun 2021
Posts: 29
Likes: 1
From: Texas
6500rpm redline
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
Last edited by bryan1000; Jun 22, 2021 at 09:10 PM.
6500rpm redline
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
Please don't take offense but there's a lotta things not adding up here....
Peak RPM too low, cubic inch too small, cam too small, turbos too small, target compression too low, fuel system requirements, etc.
Sounds like you fell in love with 1,500hp as a number but don't really grasp what it will take to get there as well as the supporting parts needed to do anything with it.
Lower your expectations to the 1,000hp range and you'll be about where you need to be based on what you've shared.
Not trying to be a dick, 1,500hp is a huge jump from say 1,000hp is all.
Peak RPM too low, cubic inch too small, cam too small, turbos too small, target compression too low, fuel system requirements, etc.
Sounds like you fell in love with 1,500hp as a number but don't really grasp what it will take to get there as well as the supporting parts needed to do anything with it.
Lower your expectations to the 1,000hp range and you'll be about where you need to be based on what you've shared.
Not trying to be a dick, 1,500hp is a huge jump from say 1,000hp is all.
TECH Fanatic
Joined: Dec 2019
Posts: 1,129
Likes: 478
6500rpm redline
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
Hope to begin producing boost in the 3000-3500rpm range
E98
Comp Cams Extreme Energy cam .555" intake lift
Long intake runners. Ported intake
80mm Throttle Body
Nitrous Express Intercooler spray bar kit. Sprays cold A$$ air through the intercooler
NX 25-50hp wet piranha nozzle to spool up faster @ low RPMS and to keep the air intake temp low.
What is IC? Intercooler or Ignition control??? Ignition coil?
Thanks for the recommendations
And I don't mean late 90s model cars. I mean posts made in the late 90s.
Thread Starter
Teching In
Joined: Jun 2021
Posts: 29
Likes: 1
From: Texas
Please don't take offense but there's a lotta things not adding up here....
Peak RPM too low, cubic inch too small, cam too small, turbos too small, target compression too low, fuel system requirements, etc.
Sounds like you fell in love with 1,500hp as a number but don't really grasp what it will take to get there as well as the supporting parts needed to do anything with it.
Lower your expectations to the 1,000hp range and you'll be about where you need to be based on what you've shared.
Not trying to be a dick, 1,500hp is a huge jump from say 1,000hp is all.
Peak RPM too low, cubic inch too small, cam too small, turbos too small, target compression too low, fuel system requirements, etc.
Sounds like you fell in love with 1,500hp as a number but don't really grasp what it will take to get there as well as the supporting parts needed to do anything with it.
Lower your expectations to the 1,000hp range and you'll be about where you need to be based on what you've shared.
Not trying to be a dick, 1,500hp is a huge jump from say 1,000hp is all.
Thanks ******!
Thread Starter
Teching In
Joined: Jun 2021
Posts: 29
Likes: 1
From: Texas
Per Aeromotive website:
The Eliminator performance you expect and more:
- Fuel Injected Engines: GAS
up to 1900 FWHP – naturally aspirated
up to 1400 FWHP – forced air induction - So E85 forced induction - 980 FWHP
- A1000 E85 forced induction - 490 Flywheel HP
- Total for two pumps: 1470 hp of E85 @ Crank
- Kenne Bell Dual Boost-a-Pump @ 14.1volts ~1500+ hp on E98
Holley 160lb/hr fuel injectors.. Flow matched
I ultimately want 4hp/cubic inch. 347 X 4 = 1388hp @ crank
Last edited by bryan1000; Jun 23, 2021 at 09:35 PM. Reason: spelling mistake
I currently own a new Aeromotive A1000 complete kit. Double AN Fittings on sumped stock tank. I will also be running an Aeromotive Eliminator pump with seperate feed lines. According to Aeromotive, this total setup should be able to feed 1400-1500hp.
Per Aeromotive website:
The Eliminator performance you expect and more:
- Fuel Injected Engines: GAS
up to 1900 FWHP – naturally aspirated
up to 1400 FWHP – forced air induction - So E85 forced induction - 980 FWHP
- A1000 E85 forced induction - 490 Flywheel HP
- Total for two pumps: 1470 hp of E85 @ Crank
- Kenne Bell Dual Boost-a-Pump @ 14.1volts ~1500+ hp on E98
Holley 160lb/hr fuel injectors.. Flow matched
I ultimately want 4hp/cubic inch. 347 X 4 = 1388hp @ crank