GT2871 USERS. SR motor

[z2roll4life7]

Originally Posted by deukalionS14

yeah, his number are impressive and are something for fellow 2871r .64 owners to shoot for. I'm shooting for it for sure.

also, the more research i do on the 4 dynos (mustang dyno, dynojet, dynodynamics, and dynapack) that most people use the more interesting information on "readings" i find.

Modified mag also did a expirament with these 4 dynos and the mustang dyno actually read the lowest followed by the dynojet, then dynodynamics, then the dynapack came in reading the highest of the 4.

also, you can't put a percentage difference for each dyno as it seems the percentage difference changes with the power output.

people have said between 6~16% difference between the DJ and DD dynos but a difference of 10% is HUGE.

so, the best bet is to just use the dyno for what its made for. tuning and power upgrades output comparison.

i need to stop with long posts lol damn im bored

I remember reading this i was surprised of the outcome
Dyno Dash - AWD - Modified Magazine

[deukalionS14]

Originally Posted by z2roll4life7

I remember reading this i was surprised of the outcome
Dyno Dash - AWD - Modified Magazine

Yeah, I was surprised too haha

well they wouldn't be so long

if

you

would

quit

typing

like

this.

yeah, try reading all that shit compressed the way you would type it. i wouldnt even read a post typed like that.

[JacksonBrown]

^^ Have you eliminated low compression in any of your cylinders as a possible culprit for your set-up not being able to achieve the numbers you're looking for at this time? I.E. have you done a compression/leak down to determine the health of the motor?

[deukalionS14]

Originally Posted by JacksonBrown

^^ Have you eliminated low compression in any of your cylinders as a possible culprit for your set-up not being able to achieve the numbers you're looking for at this time? I.E. have you done a compression/leak down to determine the health of the motor?

Yes, i did a compression test and all four were 150+psi. the motor was freshly rebuilt in March or April by Mike Kondo at Conyon Racer.

The reason why i didnt make the power i wanted this time was because of my wastegate not holding the boost. i want to boost 20~22psi with water/meth in the near future.

[Teambadrun]

Sorry man.

It's definately USA dynos read high.

I have a shitloads of mates here who even run TD06-L2-20G complete TRUST kits ( brand new, 8cm ) today a mate of mine tuned his.... 17psi boost with a cleaned up head and springs with Jun 264. 11.5mm camshafts

this car was stock bottom but had the fresh reco head and cams with springs

guess what power it made?

348.66rwhp

now
that in the states would be wayyy too low right? its actually quite high here hahaha... Theres no way on earth a GT-RS (2871 52t) can make that power unless its running massive cams and 20+psi boost. ive seen it too many times on differnt dynos in australia and differnt tuners too so no excuses....

But its good to see you can make that power in USA.. maybe go and drag race it to see what MPH and times you pull down the quarter mile?

heres a link to my mates fresh TD06-L2-20G chart.
this was on a higher reading dynapack dyno ( hub dyno from NZ)....

and a video of my car on 1.1bar boost with a run in tune ( 365rwhp or so.. Mainline dyno)

YouTube - Testing S13 Silvia JUN 2.2L KKK turbo 1.1k boost

its definately the dynos in usa. im satisfied by that because you guys make 300rwhp from stock T28's and 350rwhp on 2871 52ts....... quite easly too with mild mods . and low boost. which is the total oppisite to australia... and other countrys.

[deukalionS14]

Originally Posted by Teambadrun

Sorry man.

It's definately USA dynos read high.

I have a shitloads of mates here who even run TD06-L2-20G complete TRUST kits ( brand new, 8cm ) today a mate of mine tuned his.... 17psi boost with a cleaned up head and springs with Jun 264. 11.5mm camshafts

this car was stock bottom but had the fresh reco head and cams with springs

guess what power it made?

348.66rwhp

now
that in the states would be wayyy too low right? its actually quite high here hahaha... Theres no way on earth a GT-RS (2871 52t) can make that power unless its running massive cams and 20+psi boost. ive seen it too many times on differnt dynos in australia and differnt tuners too so no excuses....

But its good to see you can make that power in USA.. maybe go and drag race it to see what MPH and times you pull down the quarter mile?

heres a link to my mates fresh TD06-L2-20G chart.
this was on a higher reading dynapack dyno ( hub dyno from NZ)....

and a video of my car on 1.1bar boost with a run in tune ( 365rwhp or so.. Mainline dyno)

YouTube - Testing S13 Silvia JUN 2.2L KKK turbo 1.1k boost

its definately the dynos in usa. im satisfied by that because you guys make 300rwhp from stock T28's and 350rwhp on 2871 52ts....... quite easly too with mild mods . and low boost. which is the total oppisite to australia... and other countrys.

I'm not sure why the dynos in Australia read so low compared to the states. im guessing that even if we were to use the same dyno the results would be the same? (Doubtful) I've done my run on a dynodynamics and am confident that passing 350whp on it isnt an issue.

I'm going to do looking into on the dynos you guys use there and whatever else would cause such a DRASTIC difference in power readings.

well not its not total BS

I have the 2871R .64 running stock cams and stock Intake manifold

I made 363whp on a mustang dyno at 21psi.
Tuner says it feel more than that though
but i also built my block though.

this is exactly what im talking about! there are soo many people who have made over 350whp with this turbo on different dynos. nice numbers by the way sileighty 85

[Sileighty_85]

Originally Posted by deukalionS14

this is exactly what im talking about! there are soo many people who have made over 350whp with this turbo on different dynos. nice numbers by the way sileighty 85

this turbo is capable of the numbers but yours kinda confuses me on how you can achieve your numbers at a medium boost level. I know cams help but not sure/aware they would help that much.

[juggernaut1]

Originally Posted by z2roll4life7

I remember reading this i was surprised of the outcome
Dyno Dash - AWD - Modified Magazine

What a joke that article is - they didn't even run the car in the same gear across all the dyno's. The DD and the Dynopack used 4th gear and the Mustang and Dynoject used 3rd gear..hahahaha.

Also the Dynojet uses a default 77 degrees or 60 degree ambient temp depending on the correction used. What a joke....why doesn't it use ACTUAL ambient temp to provide an ACTUAL power figure.

The article is also silent on the ramp rates actually used which can also radically change the power readings.

That comparison and some of the dynos used are flawed on many levels......I smell something fishy with that article.....perhaps someone wanted to acheive a certain outcome with the dyno readings.

[juggernaut1]

He's more evidence the dyno comparison article is a crock.

Take a look at this dynojet dyno - 3rd gear run resulted in 440 hp and run in 4th and made 461hp. So a 21 hp increase from using 4th gear.

Back in the saddle again! New dyno inside - FreshAlloy.com Forums


All of a sudden it puts the dyno results back into perspective.

[OBEEWON]

Originally Posted by juggernaut1

What a joke that article is - they didn't even run the car in the same gear across all the dyno's. The DD and the Dynopack used 4th gear and the Mustang and Dynoject used 3rd gear..hahahaha.

Also the Dynojet uses a default 77 degrees or 60 degree ambient temp depending on the correction used. What a joke....why doesn't it use ACTUAL ambient temp to provide an ACTUAL power figure.

The article is also silent on the ramp rates actually used which can also radically change the power readings.

That comparison and some of the dynos used are flawed on many levels......I smell something fishy with that article.....perhaps someone wanted to acheive a certain outcome with the dyno readings.

I was reading this article last week cuz I was bored on a plane (No snakes). I was shaking my head the whole time. So un-scientific like most of thier tech articles. I skip that whole section whenever I read that mag.