Modified Speed Six performance (V2)
This Wiki is meant as a resource for people looking to understand what the real world outputs are for the Speed Six when modified.
THIS IS NOT A WILLY WAVING COMPETITION!!
Please feel free to add what you know. 24.09.13 Inspired by another members take on the figures, thought I'd add up graphs I could find showing the different curves, and hence power characteristics for people. 25.09.13 Data is transferred over to the Speed Six forum, as moderators have ignored the requests for the original thread to be moved. I hope this helps the Cerbera and Tuscan owners.
For a direct comparison, RedSpike66's factory standard 4.0 Sagaris was on SRR only 15 mins before D14 AYS.
It should be noted that the SRR figures and the Power figures are within 1 bhp of each other - as shown by the only 4.5/Syvecs car. This thread shows screen shots demonstrating this. It is unknown about other dynos thus far. Therefore we can conclude that the number that Power gives 'at the wheels' are the same numbers that SRR gives 'at the flywheel'.
THIS IS NOT A WILLY WAVING COMPETITION!!
Please feel free to add what you know. 24.09.13 Inspired by another members take on the figures, thought I'd add up graphs I could find showing the different curves, and hence power characteristics for people. 25.09.13 Data is transferred over to the Speed Six forum, as moderators have ignored the requests for the original thread to be moved. I hope this helps the Cerbera and Tuscan owners.
Member | Car type | Engine Size | Modifications | Output | Rolling Road | Date | Dyno graphs |
clive f | Sagaris | 4.0 | GT cams RND,ported throttle bodies with thinned spindles, shorter inlet tract stainless steel airbox,custom injectors, lightened flywheel, decat, cross pipe, special exhaust. | 417@7600rpm 340lb/ft@fly | Kits & Classics(Joolz, dyno dynamics) | Nov 2012 | |
Don1 | Sagaris | 4.0 | FFF, ACT airbox and exhaust,Syvecs | 443.4@7400rpm 358lb/ft @ Flywheel | SRR | July 2012 | |
Getsis | Tamora | 4.5 | Power 4.5, Syvecs, ACT Airbox & Blueflame, RG racing cats | 394.4@6700rpm 370lb/ft (408/372 de-catted custom exhaust) | SRR (mobile RR) | Dec 2011 (Dec 2012) | |
DonkeyApple | Typhon | 4.0 | FFF, Syvecs | 407.4@7700 340lb/ft @ Flywheel | SRR | Aug 2011? | |
jcpgasoline | Tuscan | 4.5 | Power 4.5, ACT Airbox & Exhaust | 392.9@6200rpm 369lb/ft@5000rpm @ wheels | Power | Dec 2011 | |
jcpgasoline | Tuscan | 4.5 | Power 4.5, ACT Airbox & Exhaust, New MBE Speed Six Engine Management System | 421.9@6200rpm 390.2lb/ft@5200rpm @ wheels | Power | Mar 2019 | |
VARLEYHYD | Sagaris | 4.3 | STR8-Six | 455BHP@6600 387lb/ft @ Flywheel | Power | Jun 2009 | |
dvs_dave | Tuscan S | 4.0 | Power 4.0, decat | 361@7230 285lb/ft@5470 | TDI@hubs | Dec 2009 | |
D14 AYS | Sagaris | 4.5 | Power SS,Decat | 418.3@7200 360lb/ft | SRR | Dec 2012 | |
rmc | T350 | 4.3 | STR8-Six | 411.81@6700 343.19lb/ft | Power@wheels | May 2010 | |
ClockworkCupcake | Sagaris | 4.0 | FFF2, Syvecs, injectors, Simplex Timing Chain, decat | 405bhp and 344lb ft | SRR | Jan 2014 | |
ceejay's race car / kits and classics | T350R | 3.6 | airbox, inlets, exhaust, cam timing, total seal rings, light head porting, weber injectors, emerald ecu | 395bhp flywheel 308lb.ft | dyno dynamics at kits and classics | may 2013 | |
MrChips | Tuscan 2S | 4.3 | str8six 4.3, carbon airbox and trumpets, decat, ACT exhaust | 410.1bhp flywheel 339lb.ft | Dyno dynamics at kits and classics | July 2013 | |
Jay964rs | Tuscan | 3.6 | 40.5mm inlet valves. 32.5mm exhaust valves. Different cams. Lightened/balanced crankshaft. Full rebuild with additional oil cooling. | 364bhp/7000rpm flywheel 316lb.ft/5000rpm | RND | March 2014 | |
EvoOlli | Sagaris | 4.3 | Jason Clegg Str8Six rebuild, kitsandclassics ecu remap | 420bhp 327lb.ft | kitsandclassics dyno dynamics | April 2014 | |
billynobrakes | T350 | 4.5 | Power 4.5 | 414bhp @ 6750rpm 368lb/ft @ 5000rpm | Power | April 2014 | |
Andy Pandie | Tuscan 2S | 4.0 | Decat, ACT Airbox, Green Top Injectors, Power RR remap | 370.4@6800rpm 315lb/ft @ fly | SRR | Oct 2014 | |
gacksen | T350 | 4.3 | TVR Power 4.3 base rebuilt, Lloyd Specialist Developments CANEMS ECU conversion, custom wiring loom, fully sequential injection, coil on plugs, knock control, dual wideband lambda, additional oil feed to back of head, camshafts chilled iron RND ENG custom profile done by Kent cams, camshaft timing set to RND ENG specification, RND ENG GT Valve springs, RND ENG Redesigned Billet Finger Followers 360 degree oiling, big bore exhaust system by Lloyd´s, conversion and mapping done by Lloyd Specialist Developments LTD | 465.8bhp 365.7 lb/ft | Dastek | December 2014 | |
Incognegro | Cerbera | 4.5 | Anti Knock MBE (with all trimmings launch/tcs/seq injection etc), ACT Decat/Sports tails, Ceramic coated maifolds & decats, Elec PAS | 414bhp 392lb/ft | Power Performance | August 2017 | |
Chim450 | Tuscan | 4.3 | Carbon fibre airbox, decat, ceramic coated manifolds | 402bhp 360lb/ft | Power | February 2020 |
For a direct comparison, RedSpike66's factory standard 4.0 Sagaris was on SRR only 15 mins before D14 AYS.
D14 AYS | Sagaris | 4.5 | Power SS,Decat | 412.9@7200 360lb/ft | SRR | 29th Dec 2011 |
RedSpike66 | Sagaris | 4.0 | Decat, CliveF backbox | 362.3@7000 305lb/ft@5200 | SRR | 29th Dec 2011 |
It should be noted that the SRR figures and the Power figures are within 1 bhp of each other - as shown by the only 4.5/Syvecs car. This thread shows screen shots demonstrating this. It is unknown about other dynos thus far. Therefore we can conclude that the number that Power gives 'at the wheels' are the same numbers that SRR gives 'at the flywheel'.