Made a few changes to the fueling compared to last year. Had the alky come in sooner so it fattened up the transition. Still need to do a few more pulls to nail the timing and fueling on transition. Couldnt get over 24psi on the dyno through 3rd. Likely will hit 26+ on the street from the added loading. Last year the same engine went 114mph in the eighth at 26psi. Ill be making a couple changes to the final drive and adding in a 3rd alky nozzle. Should be good for 700+ if i can get 25psi out of it. From 20-24psi it picked up 25hp/psi. Not too bad for a hyd cammed 233ci engine.
233ci 9.35:1 CR steel rotating assembly/JE piston with all machine work performed by RPE and all assembly by me.
GN1 Full race port but not raised runners or any other trickery.
Autolite 103 tight .030 gap
GN1 intake
1.65 Jesel style T&D
218/224 hyd cam with lift around .550
TH headers
3.5" internal gate dp
T-netics 6680 BB turbo
Precision fm
Dual nozzle alky control with only single xp pump running in tank.
XFI engine management
83 lb/hr injectors
200 4R by me with billet internals and dynotech driveshaft
PTC 9.5" bad ass converter
8.5 rear with ??? gearing
A couple things to be noted are that these same pistons have been in and out of 4 different engines over the last 13 years
. Also the dual nozzle with a 3.5 bar and single in tank xp pump was good to about 680hp before the DC started to get a little screwy up top. Ill have the other pump on in the future and will likely switch to a 3 bar MAP for the PAC instead of the 3.5 so i get more alky pressure. The only internal engine thing i changed was the valve springs. Went to the 26120 conical spring which are proving to be plenty for this application. I never intended on making any more pulls than a couple at 18psi just to get it cleared up. Made about 520whp@17-18psi with the alky off. From there they egged me on and told me to turn it up so i did. Peak torque was over 800 on the second to last pull. It picked up power on every pull. Lets see if GNBRETT can make a full pass in his car without crapping his panties. If he ever gets to actually drive it
I think hes afraid.
Thanks to Otto J for letting me make repeated runs on his dyno and tuning input.