L92 418cid TSP Stroker Chassis Dyno Results!
03-21-2007, 10:52 AM
#1
L92 418cid TSP Stroker Chassis Dyno Results! Guys here's the dyno sheet from the 418 l92 stroker complete with l92 heads & l76 intake!
This is the engine that made 640 flywheel horsepower a week or two ago. I'll try to post up the dyno figures for the engine dyno later today.
Here's the specs on the motor & car:
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
1 3/4" Headers
Borla Catback
3.90 Gear 12 Bolt
The engine dyno tests were done with 1 7/8" headers. Unfortunately the customers car is running 1 3/4" headers, but the car still makes very good power. If memory serves me correctly the engine is just a little bit over 11:1. We dyno tested several different camshaft options on the dyno, but decided to leave this one in to see how she drives
Chassis Dyno Results:
This is the engine that made 640 flywheel horsepower a week or two ago. I'll try to post up the dyno figures for the engine dyno later today.
Here's the specs on the motor & car:
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
1 3/4" Headers
Borla Catback
3.90 Gear 12 Bolt
The engine dyno tests were done with 1 7/8" headers. Unfortunately the customers car is running 1 3/4" headers, but the car still makes very good power. If memory serves me correctly the engine is just a little bit over 11:1. We dyno tested several different camshaft options on the dyno, but decided to leave this one in to see how she drives
Chassis Dyno Results:
__________________
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, 12:01 PM
#4
They are the PRC fully cnc ported l92 heads with stock valves.
Here's some detailed dyno info from the engine when it was on the engine dyno!
https://ls1tech.com/forums/showthrea...98#post6694298
Here's some detailed dyno info from the engine when it was on the engine dyno!
https://ls1tech.com/forums/showthrea...98#post6694298
__________________
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, 12:38 PM
#7
Great numbers. Kinda defies the results that other builders are getting. Others have not been able to get good power under the curve with cams with that much overlap. Glad to see you broke the paradigms.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
then 
for the money spent and the result. 
