Stock Sti dyno figures
13 February 2010, 01:37 AM
#2
My mate bought a v.5 STi Type R in late 2007 (so a max of 9 years old at the time). The previous owner had it dyno'd and it was at 267bhp - about 9bhp down on Subaru's quoted 280PS (276bhp). Obviously no two engines will put out exactly the same figure, etc. But a 9bhp loss in 9 years aint too bad, especially when it could so easily have left the factory at 267 anway! i.e. it's fair to expect a variation of circa +/- 5% in the manufacturer's quoted figure...
Just to emphasise that point, I had my - at the time, stock - MY93 WRX dyno'd (save for a aftermarket system - NOT decat though) and it made 249.5bhp! Some 12bhp more than the quoted 240PS (237bhp)...
Just to emphasise that point, I had my - at the time, stock - MY93 WRX dyno'd (save for a aftermarket system - NOT decat though) and it made 249.5bhp! Some 12bhp more than the quoted 240PS (237bhp)...
Last edited by joz8968; 13 February 2010 at 01:39 AM.
13 February 2010, 02:07 PM
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My old Spec C with a panel filter (STI one) and a H&S backbox (rest is standard inc the jdm map), pushed out 316bhp, thats about 40bhp over subaru's quoted figure 
(and she did this pretty consistantly too)
Tony
(and she did this pretty consistantly too)Tony
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13 February 2010, 02:14 PM
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My old Spec C (standard as shipped from Japan) dynod at 294bhp at Surrey Rolling Road. Should be 276 as noted above ...
TX.
TX.
Last edited by Terminator X; 13 February 2010 at 02:15 PM.
13 February 2010, 03:12 PM
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Hawkeye STI with PPP here, was rolling roaded at 320BHP/356lbs/ft Torque before the head gasket went (that's pretty much bang on book figures). That's been sorted and I've had a cat back since then so need to re run her to see what she's doing now - roll on 13th March 
Last edited by STI Mav; 13 February 2010 at 03:13 PM.
13 February 2010, 07:38 PM
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Thxs guys
Yep dynos are different etc etc but it gives an idea as to how close dyno estimated numbers and factory numbers are.
Do you think the later models make more power stock than the earlier stock GC8 Sti's ?
Yep dynos are different etc etc but it gives an idea as to how close dyno estimated numbers and factory numbers are.
Do you think the later models make more power stock than the earlier stock GC8 Sti's ?
