TSP 640+HP L92 Engine & Chassis Dyno Sheets & Results
03-21-2007, 11:59 AM
#1
TSP 640+HP L92 Engine & Chassis Dyno Sheets & Results Guys here's some dyno sheets from our recent dyno testing on the 418cid stroker with 1 7/8" long tubes.
Here's the dyno sheet from the engine on the chassis dyno (1 3/4" headers) with the 251/259 110+3 LSK Camshaft:
The following dyno data is the exact same engine installed on the engine dyno with 1 7/8" headers.
Here's the specs on the engine:
TSP 418cid L92 Stroker
4.080" Bore
4" Stroker
Precision Race Components 6.2l Heads
PRC Platinum Spring Kit
Texas Speed 251/259 Camshaft 110+3
ASP Underdrive Pulley
Stock 6.2l Intake w/ stock 6.2l injectors
Here's a dyno sheet from A XER intake/LSK exhaust camshaft we tested before the 251/259 camshaft.
This camshaft is a 242/251 111+2 Comp Cam.
Here's the dyno sheet from the engine on the chassis dyno (1 3/4" headers) with the 251/259 110+3 LSK Camshaft:
The following dyno data is the exact same engine installed on the engine dyno with 1 7/8" headers.
Here's the specs on the engine:
TSP 418cid L92 Stroker
4.080" Bore
4" Stroker
Precision Race Components 6.2l Heads
PRC Platinum Spring Kit
Texas Speed 251/259 Camshaft 110+3
ASP Underdrive Pulley
Stock 6.2l Intake w/ stock 6.2l injectors
Here's a dyno sheet from A XER intake/LSK exhaust camshaft we tested before the 251/259 camshaft.
This camshaft is a 242/251 111+2 Comp Cam.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
03-21-2007, 12:06 PM
#4
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Originally Posted by lastcall190
So you picked up... 80HP with the 1 7/8 switch? Jeez... Nice numbers.
-J
-J
thanks for pointing that out! 
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03-21-2007, 01:28 PM
#8
No look at the avarage RPM's and factor that into the avarage power.
The smaller cam dyno had a higher RPM avarage which means it was in the main power band the majority of the run, where as the bigger cam has a lower avarage RPM and probally has factored more low RPM numbers into the avarahe HP and TQ.
The smaller cam dyno had a higher RPM avarage which means it was in the main power band the majority of the run, where as the bigger cam has a lower avarage RPM and probally has factored more low RPM numbers into the avarahe HP and TQ.
03-21-2007, 01:41 PM
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Was the dyno operator scared to find the rest of the power on the larger cam setup? BSFC is kinda high towards the end. Or the heads really arent that efficient for making power up there.
06-28-2007, 11:33 AM
#10
Up Up Up!!
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
