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Crd Dyno Tuning Of My R32 Gt-r.... My 0.02c!

williamsf1

By williamsf1,
in New South Wales

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williamsf1 Mentor

williamsf1

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Hey Dave,

yeah I am sure CRD's is a happy dyno! I'm only able to compare like for like.... many other guys on this forum have been to CRD and got with similar setups 285-315 AWKW so Im in there somewhere....

I did the DART dynolog because :-

A) Jim @ DART offered and is a great guy!

B) very accurate NM torque reading

C) unbiased back to back testing with a known base.....

to gain 65 AWKW and 122NM with slightly less boost is great news from a dynolog....

I also know of a GTR with GTRS making 280AWKW on dynolog making 385 AWKW on DynoDynamics....

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gtrmadness Rookie

gtrmadness

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Mik DART's dynolog dyno and Jason from the GONG's dyno read with the same initial tune 1 AWKW difference... so I was very happy that the dynolog system is repeatable...

GTRmadness...

the cams made well over 10AWKW with the rest of the timing adjusted accordingly...

I have the sheet with cam timing 0 0 below....

it is also a well known fact that dynolog dynos read quite a bit lower than dynodynamics.... (CRD type)

of note this morning the tyres were cold, and the ambient was same as before.... (205 run)

Jim @ CRD said the tyres alone will sap 10-20 when they get too hot....

interesting!

gtrmadness Rookie

gtrmadness

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another thing you might find interesting was that the car was showing a leaner mixture on the sas dyno as compared to crd . we then borrowed a motec lamda meter and confirmed it was leaner . interesting to see what afr reading you got from darts dyno as compared to crd .

williamsf1 Mentor

williamsf1

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When I get back to Adelaide, I will also look to have an autronic or MoTeC wide-band O2 sniffer borrowed for a drive around....and confirm it all

As long as I keep the correct fuel up to the engine (BP ultimate) and not run for extended periods with the high setting of 1.4 I should have no issues at all...

I doubt the car is too lean as it was certainly doing the nice fuel cloud out the back on the dyno!!! ala a stone brother's V8 style...

also I note Jim said I should add a little octane boost (nulon) for any future track days... half a bottle for a tank :D

just for safety...

Kabab.... you will love cams, no question! I also beleive that there is a bit in the TRUST dumps, as not many have these, and maybe more to come as I have been told my exhaust is rather restrictive ( has been chopped and changed prior to me owning the car and has some bad welds and bends.... also 3" )

kabab Experienced

kabab

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When I get back to Adelaide, I will also look to have an autronic or MoTeC wide-band O2 sniffer borrowed for a drive around....and confirm it all

As long as I keep the correct fuel up to the engine (BP ultimate) and not run for extended periods with the high setting of 1.4 I should have no issues at all...

I doubt the car is too lean as it was certainly doing the nice fuel cloud out the back on the dyno!!! ala a stone brother's V8 style...

also I note Jim said I should add a little octane boost (nulon) for any future track days... half a bottle for a tank :D

just for safety...

Kabab.... you will love cams, no question! I also beleive that there is a bit in the TRUST dumps, as not many have these, and maybe more to come as I have been told my exhaust is rather restrictive ( has been chopped and changed prior to me owning the car and has some bad welds and bends.... also 3" )

We should go out for a little "comparison" sessions....

Sydneykid Grand Master

Sydneykid

Posted
Posted
270 AWKW 707NM @ 1.36 BAR

Ever so interesting Ben, thanks for taking the time to post it up.

:wacko: cheers :(

PS; I seem to remember predicting 280 rwkw at 1.4 bar when we chatted last Saturday. ;)

williamsf1 Mentor

williamsf1

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Ever so interesting Ben, thanks for taking the time to post it up.

:wacko: cheers  :(

PS; I seem to remember predicting 280 rwkw at 1.4 bar when we chatted last Saturday. ;)

Yes as always SK you played a huge part in the overall development of this car, whilst not getting your hands dirty, it was generally your ideas placed into practice ;)

yeah so 270 AWKW on dynolog and 313 AWKW on dynodynamics is sweet...

but Im more for the torque! 707NM !!!! oh my....

Gary we need to have a chat about AFR's I feel there could be a whole thread just on this as it is such an important thing....

Id love to know what say a V8 team runs for lets say bathurst versus a sprint round...

or for that matter what Gibo's car ran for the 1000....

12 seems to be the number used a lot, but Jim said higher is still well safe with nice fuel....

someonestolecc Grand Master

someonestolecc

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Posted
Hey Dave,

yeah I am sure CRD's is a happy dyno! I'm only able to compare like for like.... many other guys on this forum have been to CRD and got with similar setups 285-315 AWKW so Im in there somewhere....

I did the DART dynolog because :-

A) Jim @ DART offered and is a great guy!

B) very accurate NM torque reading

C) unbiased back to back testing with a known base.....

to gain 65 AWKW and 122NM with slightly less boost is great news from a dynolog....

I also know of a GTR with GTRS making 280AWKW on dynolog making 385 AWKW on DynoDynamics....

Good on you mate for testing it out back at the original place and getting that baseline. Between all of them I think should be enough demonstration to people that they really do have to be compared directly.

Sounds like an animal car good on you.

wreckedhead Mentor

wreckedhead

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Ben , i had a close friend dyno his power fc at croydon and finished with 280kw . he drove straight around the corner to silverwater autos new dyno dynamics awd and it the same car made 258kw over 3 runs , all within 2 kw. not bagging crd , but i dont believe dynolog reads ( much less ) . crd"s dyno has been proven to be happier than other dd"s or jim must be bumping it up for a good result , then detuning slightly so you can drive away safely.

gtrmadness Rookie

gtrmadness

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Ive noticed quite a few guys like you ben , have engines built by jim at dart and tuning by jim at croydon. these two shops must obviously have a good working relationship which is rare . its good to be able to use both guys , get 2nd opinions , all without causing friction .

williamsf1 Mentor

williamsf1

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Ive noticed quite a few guys like you ben , have engines built by jim at dart and tuning by jim at croydon. these two shops must obviously have a good working relationship which is rare . its good to be able to use both guys , get 2nd opinions , all without causing friction .

Correct.... DART Jim previously worked at CRD, and now has set up a very very nice workshop in punchbowl, and turns out some of the most professional work I have seen....also of note is that their new dyno room is state of the art! and has the latest tech dynolog dyno....

Jim @ CRD could most likely tune a GT-R drunk and no sleep.... I'm hard to impress at the best of times, and considering the car was mad fast previously, he made a hell of a gain! EVERYWHERE!!!!

Also of note is that most of the on going work was completed by BEL and I would say 90% of the car belongs to the hard work of Eric there!!!!

so yes, a combo of resources from the best avaliable, and funnily enough, the only bad blood between the workshops is in the customer rivals.... not the workshops themselves.

As I know all 3 personally vouch for each other, and have seen them each be recommended by the next...

happy days......

williamsf1 Mentor

williamsf1

Posted
  • Author
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another thing you might find interesting was that the car was showing a leaner mixture on the sas dyno as compared to crd . we then borrowed a motec lamda meter and confirmed  it was leaner . interesting to see what afr reading you got from darts dyno as compared to crd .

What AFR's did your mate get and the difference? mine are a safe 12 - 12.1

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