Dyno results for Guru 18psi chips
03-18-2004, 04:12 AM
#1
Burning Brakes
Thread Starter
Dyno results for Guru 18psi chips
Hi all,
got my car dynoed with gurus at 17.5-18psi today. afaik, stock car with 3bar fpr, shims, guru chips and accuboost (vs reliaboost that comes in the kit). i had no idea the car sounded so nasty from the outside at full pelt in 4th
. i was like 'wah, run for cover!'.
this was on a dyno dynamics dynamometer. not sure how to compare torque figures off it (what is the conversion?), but peak power was 238 rwhp. using the correction factor between dyno dynamics and dynojet of 1.15 (Dyno conversion), comes to be about 273 rwhp. right on the money. will post charts later when i work out how to use the scanner. a/f started around 12.5 and went richer to around 11.5 near redline - nice! interestingly, the boost gauge shows around 17-18 psi, but the dyno boost says it peaked at 16.5
go danno!
got my car dynoed with gurus at 17.5-18psi today. afaik, stock car with 3bar fpr, shims, guru chips and accuboost (vs reliaboost that comes in the kit). i had no idea the car sounded so nasty from the outside at full pelt in 4th
. i was like 'wah, run for cover!'.this was on a dyno dynamics dynamometer. not sure how to compare torque figures off it (what is the conversion?), but peak power was 238 rwhp. using the correction factor between dyno dynamics and dynojet of 1.15 (Dyno conversion), comes to be about 273 rwhp. right on the money. will post charts later when i work out how to use the scanner. a/f started around 12.5 and went richer to around 11.5 near redline - nice! interestingly, the boost gauge shows around 17-18 psi, but the dyno boost says it peaked at 16.5
go danno!
03-18-2004, 04:22 AM
#2
Rennlist Member
the figure 238wrhp is right on the money!i dont know if that figure 273 is rwhp,probablly crank hp.its great to see you like the guru chips,as i do as well.now i just need to upgrade my chips tp 18psi......GO GURU!!!!!!!!!!
03-18-2004, 04:25 AM
#3
Burning Brakes
Thread Starter
nah, apparently the dyno dynamics dynos read lower than dynojets by about 13% or something. the think driveline loss on a dynojet is around 15%, and on a dyno dynamics it's around 27%. so 1/0.73 * 0.85 ~ 1.16 or thereabouts to convert from dyno dynamics dyno to dynojet. so that would make it around 276rwhp on a dynojet.
03-18-2004, 04:34 AM
#5
Burning Brakes
Thread Starter
d00d, well maybe u'r a lot higher than u think . i dunno, did u read the link? those were the figures that that shop gave, comparing the same car on each dyno.
. i dunno, did u read the link? those were the figures that that shop gave, comparing the same car on each dyno.
03-18-2004, 05:05 AM
#7
Instructor
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ok so my stock '88 non-S 951 on 98 octane fuel would run at about 240rwhp @ ~18 psi with the Guru chips+FPR+boost controller kit?
I've got a target of around 250rwhp (240 will be close enough) for my car, and am currently deciding between getting the chip kit or going up the next step and getting the MAP stage 1 kit. Any idea what sort of gains I could expect to get from that?
I've got a target of around 250rwhp (240 will be close enough) for my car, and am currently deciding between getting the chip kit or going up the next step and getting the MAP stage 1 kit. Any idea what sort of gains I could expect to get from that?
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03-18-2004, 09:24 AM
#12
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Well, using the figures from the RacerX site, you get
34.09666... km/h per 1000 rpm in 4th
25.1832833....km/h per 1000 rpm in 3rd
(ignoring significant figures etc.)
34.09666... km/h per 1000 rpm in 4th
25.1832833....km/h per 1000 rpm in 3rd
(ignoring significant figures etc.)
03-18-2004, 09:28 AM
#13
Three Wheelin'
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Originally posted by NZ951
If your goal is only 240-250, dont get the MAP kit. By the way, goals have a tendenancy to increase... in that case, you should get the MAP kit.
If your goal is only 240-250, dont get the MAP kit. By the way, goals have a tendenancy to increase... in that case, you should get the MAP kit.
Well put!
03-18-2004, 10:10 AM
#14
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I ordered my chips 10 days ago and I'm waiting anxiously...As I understand it, the MAP kit uses the same chips so we can just kick in an extra $500 or so when the chips aren't enough. Is this true?
87 951
87 951