I am trying to remember the highest number I had ever seen for a blower setup on an S52. I keep seeing 517whp in my head.
I think I will be close.
Here is what I had:
Vortech V2 S-Trim, 8 rib pulley 3.33" pulley
RMS aftercooled with a Terminator Mustang heat exchanger
CES cutring gasket/ARP hardware(stock compression)
Turner shorty headers, SuperSprint catback, Mike(MaxPSI) made Vibrant center section and cats
M50 manifold, Riot Racing BBTB
Blower Cams by VAC
803 Maf, 42lb injectors and Walbro 255lph pump
Nick G tune
This setup did 400whp/317tq
What I have done now:
The Vortech was sent to Jon Bond for full rebuild and had a billet impeller installed. Builder says this is flowing to support 725hp
22RPD SuperCharger Tune kit, tune, 80lb injectors, MAF
APE FlexFuel Module
Walbro 485lph pump
Aeromotive Adj FPR
Rally Road oil cooler cap and Setrab oil cooler
CES Copper gasket spacer, drops me from 10.5:1 to 9:1
I have a 2.65" and a 3.15" pulley to try out
I am thinking 15psi on pump, 18psi on e85. If this isn't cracking 500whp on E85 something is very wrong.
Please don't reply how I should start over with a turbo. I have 0-interest. I have other turbo cars in my stable that make 28lbs of boost at 2500rpms, I enjoy the power delivery, feel and sound of this setup. BUT I want to maximize the potential of the hardware.
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Last edited by Jamesons Viggen; 03-30-2020 at 01:29 PM.
'98 RMS stage 2+++++(491whp/390tq VAC cams, CES Cutring-9:1, Built blower, Meth etc)
'09 Saab 9-5 Combi 5mt 1 of 1(Built Motor, Brembos, LSD, the works!)
'22 Cadillac CT4-V BlackWing 6mt
'22 Cadillac CT4 2.0T Sport AWD (wife's)
We seem to be progressing backwards...
'98 RMS stage 2+++++(491whp/390tq VAC cams, CES Cutring-9:1, Built blower, Meth etc)
'09 Saab 9-5 Combi 5mt 1 of 1(Built Motor, Brembos, LSD, the works!)
'22 Cadillac CT4-V BlackWing 6mt
'22 Cadillac CT4 2.0T Sport AWD (wife's)
It’s not a road block when E85 is used.
'98 RMS stage 2+++++(491whp/390tq VAC cams, CES Cutring-9:1, Built blower, Meth etc)
'09 Saab 9-5 Combi 5mt 1 of 1(Built Motor, Brembos, LSD, the works!)
'22 Cadillac CT4-V BlackWing 6mt
'22 Cadillac CT4 2.0T Sport AWD (wife's)
If you are on a stock block, those limits make sense for stock compression with a centrifugal. The drag on the crank does stress the motor. With a centrifugal, I ran 13-14 on 93 pump plus meth, then changed to a 0.098 MLS and ran 16-17 on 93 pump plus meth. Have not played with E85 because the nearest is 75 miles away unless I buy expensive drums and pump my own.
With a turbo, people run more than 15 psi on E85 with 10.5, but the stock block becomes a limitation. Turbos makes way more torque, which can bend stock rods. And stock pistons have ring gaps a little on the tight side for high boost. If you are up for a little more work, opening up the ring gaps could help your motor survive if you plan to push it to the limit.
Last edited by pbonsalb; 04-07-2020 at 11:42 AM.
I am lucky to have multiple E85 options within 1-5 miles.
When bone stock I ran about 13psi. At MaxPsi, once the cutring was in, they found with no meth and pumpgas, 11-12psi was about the max. Now I have the CES spacer dropping me to 9:1 and a full E85 setup. I don't want any restrictions keeping me from 500whp and now I could even hit that without the E85. The engine only has 90k and looks to be in nice shape(cross hatching evident for example). One day as the miles get up there, sure, I'll pull the motor and do forged pistons and rods and take it a step further.
'98 RMS stage 2+++++(491whp/390tq VAC cams, CES Cutring-9:1, Built blower, Meth etc)
'09 Saab 9-5 Combi 5mt 1 of 1(Built Motor, Brembos, LSD, the works!)
'22 Cadillac CT4-V BlackWing 6mt
'22 Cadillac CT4 2.0T Sport AWD (wife's)
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