Speedcraft Turbo Dyno, Part II
12-05-2001, 11:42 AM
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Speedcraft Turbo Dyno, Part II
We tuned it at John (Vaportrails) shop last night, and I got the images digitally so you can see them a bit better than my horrible scanned images before. Hopefully these'll speak a bit to the 'holy-hell'-ness of the kit. 
SondraS2K's car gets to be the baseline dyno.. hope you don't mind, Sondra. Also, just a note here, these dynos were NOT open-header dynos, so although the same number as before was reached (334), I've got the exhaust on this time. I don't necessarily know that it's robbing any power persay, but I'm basically saying any power that it DID rob was offset by the V-AFC tuning.
Stock versus the turbo:
My 3 boost settings: Off (4.2psi), Lo-Boost (~5psi), and Hi-Boost(8.8psi). Check out the difference just 4 psi makes.
Also note how much leaner the Hi-Boost setting is in the bottom graph (Air-Fuel).
And one more image of the Hi-Boost, couple of runs doing a little bit of V-AFC twiddling.
Hope these helped, and as always feel free to ask any questions (I'd prefer them in this thread though, I get about 10 million "tell me about your turbo" PMs a day
). Thanks guys-
cd
SondraS2K's car gets to be the baseline dyno.. hope you don't mind, Sondra. Also, just a note here, these dynos were NOT open-header dynos, so although the same number as before was reached (334), I've got the exhaust on this time. I don't necessarily know that it's robbing any power persay, but I'm basically saying any power that it DID rob was offset by the V-AFC tuning.Stock versus the turbo:
My 3 boost settings: Off (4.2psi), Lo-Boost (~5psi), and Hi-Boost(8.8psi). Check out the difference just 4 psi makes.
Also note how much leaner the Hi-Boost setting is in the bottom graph (Air-Fuel). And one more image of the Hi-Boost, couple of runs doing a little bit of V-AFC twiddling.
Hope these helped, and as always feel free to ask any questions (I'd prefer them in this thread though, I get about 10 million "tell me about your turbo" PMs a day
). Thanks guys-cd
12-05-2001, 12:15 PM
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Originally posted by Wesmaster
Doesn't seem like that big of a difference <totally joking>.
Doesn't seem like that big of a difference <totally joking>.
Dudes, look at the HUGE dip in power at low rpms. This kit is a joke I'm sending it back, it's worthless. It's like 10 ft pounds less at 1500 rpms, wtf?
12-05-2001, 12:17 PM
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Originally posted by ChrisD
Dudes, look at the HUGE dip in power at low rpms. This kit is a joke I'm sending it back, it's worthless. It's like 10 ft pounds less at 1500 rpms, wtf?
Dudes, look at the HUGE dip in power at low rpms. This kit is a joke I'm sending it back, it's worthless. It's like 10 ft pounds less at 1500 rpms, wtf?
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12-05-2001, 12:38 PM
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Mechanically, I believe it is an identical set-up. Same turbo, same IC, same BOV, same wastegate, same exhaust, same FMU, same boost controller. I think our only differences are the name brand on the gauges... Chris has Apexi and I have Greddy. Actually our cars are almost identical in every way except Chris's has around 30K miles on it and I'm still under 20K.
