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crx
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64 Posts
Discussion Starter · #1 · (Edited)
Hi Guys , I thought I would share my setup and dyno results.

89 CRX SI

Zc dohc Obd0 converted to Obd1 Hondata s300
Tuned on E85 and 93 octane
Jrsc with Lht intercooler, blower ported polished by Mr. Grimm

Work Done to blower
Retiming Inlet and Outlet Ports for flow and Increased CFM & Lower IAT's
Correcting the 3mm Outlet port misalignment from casting / machining
Porting out Rotor housing Inlet
Porting out Rotor housing Outlet
Total reshaping of Inlet and Outlet ports
Port matching to S-Tube
Porting out the S-Tube Inlet to allow larger custom intake
Porting out the S-tube Outlet to match the Charger Rotor case
Media blast S-Tube to remove old sealer and Oxidation / Stains from outer casting
Polishing of all Port work
Refacing all gasket surfaces
Press in new Rotor Bearings
Reinstall all 8 studs with locktight after chasing all threads
weld weep holes closed

Had supercharge sent to High speed labs for rebuild and rotors recoated. The owner was impressed with Mr. Grimms port and polish work.

Ford lighting heat exchanger
3.4 jackson pulley with Y8 crank pulley. Dyno showed 8.7psi boost
Colt Tri flow cams , stock spring and retainers.
Adjustable Eagle cam gears, not touched for tune
Kamakazie header, high flow cat and Thermal 2.25 exhaust
68mm throttle body with aem cold air intake
Sard fpr with aem fuel rail, 900 injectors from Injector nation
Walbro 255 pump
New vavle guide seals had machine shop check guides said they were within specs
Oem head gasket copper sprayed Arp head studs
Stock pistions and rods

Si transmission
In the process of pulling the transmission and installing Zc 3rd and 4th gears and Mfactory LSD,

Would like to see how much more power this thing is capable of with a smaller blower pulley, a new intake tube fabricated and maybe play with the cam gears but I'm afraid I am at my limit with this bottom end.








 

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MuthaFuckaUppa
2009 Civic Si Sedan
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571 Posts
Very cool.

93 Oct: 214HP 169 FT-LB
E85: 237HP 188 FT-LB
 

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crx
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64 Posts
Discussion Starter · #4 ·
Very cool.

Thank you!

93 Oct: 214HP 169 FT-LB
E85: 237HP 188 FT-LB
Love the back to back testing of the fuel types. That polishing looks fantastic. Looks like you would've made a few more hp if you took it to the factory cutout.

Have you got any interest in doing the 1/4 mile?
Hey EFB055 thanks! the car is a blast to drive, Mr Grimm was a great guy "RIP"
He did a beautiful job on it. I would like to do the 1/4 mile, I think its going to really kick ass with the new gears.
 

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89 EF 4wd sedan
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974 Posts
Hey EFB055 thanks! the car is a blast to drive, Mr Grimm was a great guy "RIP"
He did a beautiful job on it. I would like to do the 1/4 mile, I think its going to really kick ass with the new gears.
For sure, keen to see what numbers you get. I'm rebuilding my prop shaft at the moment, but when it's back to being 4wd again i'm keen to hit it up again. Shooting for high 13s.
 

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Meat Popsicle
91 CRX Si
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2,942 Posts
That’s certainly sexy. I wonder how much the polishing actually helps.

I wanted to weld the holes on my supercharger but never got around to it. Supposedly the whine is much louder with them closed.
 

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crx
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64 Posts
Discussion Starter · #9 ·
That’s certainly sexy. I wonder how much the polishing actually helps.

Not sure how much the polishing helped since I had it done before installing it, I will try to keep a closer eye on my IAT this summer to see how hot they get.

I wanted to weld the holes on my supercharger but never got around to it. Supposedly the whine is much louder with them closed.
Same as above, it was done before I installed so I cannot tell you how much louder it is.

Transmission is out now , getting new gears and LSD installed, looking forward to seeing how it feels. Its winter now so car will be down for a few more months
 
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