HSR Dyno Results
Thread Starter
Burning Brakes
Joined: Aug 2005
Posts: 1,172
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From: '88 TPI L98/HotCam Powell, Ohio
HSR Dyno Results
I had a hard time finding actual dyno results for 350 HSR combos so here's the latest on my build for anyone interested:
Forged 350
TPIS Ported 113's
Hotcam
Hooker 1.75" headers, 3" exhaust, x -pipe and Mufflers
TKO 600
Non Ported Full HSR
Accel DFI 7
24lb SVO's
Forged 350
TPIS Ported 113's
Hotcam
Hooker 1.75" headers, 3" exhaust, x -pipe and Mufflers
TKO 600
Non Ported Full HSR
Accel DFI 7
24lb SVO's
Suckin' gas, haulin' ass.
Joined: Apr 2010
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From: Newport News Virginia
Very nice. Gobs of torque. AFRs look spectacular as well!
Unrelated, but could you PM me pics of how you did the TKO to C-Beam? I'll be replacing the ZF eventually and am looking for ideas.
Unrelated, but could you PM me pics of how you did the TKO to C-Beam? I'll be replacing the ZF eventually and am looking for ideas.
Le Mans Master
Joined: Oct 2007
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From: Akron Ohio
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Very good Matt! Looks like you got the tune sorted out. Hopefully for good! 
Looking forward to watching you run in June.
Looking forward to watching you run in June.
Race Director
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From: Indianapolis IN
Suckin' gas, haulin' ass.
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From: Newport News Virginia
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Thread Starter
Burning Brakes
Joined: Aug 2005
Posts: 1,172
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From: '88 TPI L98/HotCam Powell, Ohio
Thanks for the compliments all! My car was always better than C5Z's exiting 50 mph turns up to 100, but then they would walk me. (TPIS large runners /base)
Now I pull a little on them from 100-150 without losing anything off the slower turns.
Keep in mind, we are all at 8.7 lbs/HP because of class rules but the key is where we make the power.
LD is correct about the Keisler bracket. I have been down the same road,,,4+3 -ZF6-TKO.
I actually like the shifting of the ZF a little better but the extra weight stinks.
Matt
Now I pull a little on them from 100-150 without losing anything off the slower turns.
Keep in mind, we are all at 8.7 lbs/HP because of class rules but the key is where we make the power.
LD is correct about the Keisler bracket. I have been down the same road,,,4+3 -ZF6-TKO.
I actually like the shifting of the ZF a little better but the extra weight stinks.
Matt
Drifting
Joined: Oct 2006
Posts: 1,328
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From: Stafford Connecticut
I believe there is an upgrade for the TKO that can make them shift smoother,It's a carbon fiber synchro kit along with some other parts.I also have the TKO trans in my Vette.It's a good trans just a little stiff when shifting between the gears.The numbers you are putting down are great for a 350 with ported 113's.You definitely have your parts sorted out.
Last edited by steven mack; Apr 20, 2012 at 08:00 AM. Reason: add info
Le Mans Master
Joined: Oct 2008
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From: Houston Texas
Man, I wonder what mine would have dynoed at now. My cam was a little more agressive CC502 and I had Vortec fastbun heads. It felt really good for 50 miles.
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From: Overland Park Kansas
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Thread Starter
Burning Brakes
Joined: Aug 2005
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From: '88 TPI L98/HotCam Powell, Ohio
Le Mans Master
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
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Matt are you using the 275s in ST2? Is that so you can use the mod factor for pwr to weight?
Race Director
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
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Thread Starter
Burning Brakes
Joined: Aug 2005
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From: '88 TPI L98/HotCam Powell, Ohio
@Kubs,
Yeah, I ran 275 'Kooks and I still had to add a ton of weight! I spent all that money on lightweight parts, lexan..etc and it just bugs the chit out of me to put ballast in the car. It's nice to mount it low but it still wears out hubs/brakes and tires.
I'm leaning towards putting the large runner setup back on the car and running at 2951lbs (that includes me/gear and fuel after a 40 minute race). 315's on all 4 and that weight should put me back in the 1.7+ G range. I was consistantly 1.53-1.55 with the 275's.
@Greg, You just want your HSR back!
Yeah, I ran 275 'Kooks and I still had to add a ton of weight! I spent all that money on lightweight parts, lexan..etc and it just bugs the chit out of me to put ballast in the car. It's nice to mount it low but it still wears out hubs/brakes and tires.
I'm leaning towards putting the large runner setup back on the car and running at 2951lbs (that includes me/gear and fuel after a 40 minute race). 315's on all 4 and that weight should put me back in the 1.7+ G range. I was consistantly 1.53-1.55 with the 275's.
@Greg, You just want your HSR back!