My スーパー耐久 ST-3 FD3S build thread (restore JDM endurance race car )
#351
RE for life
Thread Starter
Good as new ~
Wait this is new engine after all (*???*)
With dyno brake in , the engine had almost too good to true compression number with big port
But this number should change after engine warm up
Wait this is new engine after all (*???*)
With dyno brake in , the engine had almost too good to true compression number with big port
But this number should change after engine warm up
#352
RE for life
Thread Starter
Two long day of dyno session
Each night is battle to over night
Finally figures out the strange miss fire
One of leading ign coil wire Gone bad, and
Trailing coil was acting strange ,so replace with good spare
The final dyno number is at 1.3kg of boost
Why we stop at 6500rpm
Is I find out I have unstable fuel pressure over at that range
All this done with pump gas and no water injection
I did make some map for low boost for my endurance race , this just show maximum potential of this engine
Each night is battle to over night
Finally figures out the strange miss fire
One of leading ign coil wire Gone bad, and
Trailing coil was acting strange ,so replace with good spare
The final dyno number is at 1.3kg of boost
Why we stop at 6500rpm
Is I find out I have unstable fuel pressure over at that range
All this done with pump gas and no water injection
I did make some map for low boost for my endurance race , this just show maximum potential of this engine
Last edited by diyman25; 05-10-18 at 04:52 PM.
#356
RE for life
Thread Starter
Originally Posted by Alpine
seems abit laggy for a stock twin, are you running in non-sequential mode?
Suppose to be more laggy then stock
Originally Posted by BLUE TII
Non sequential
#357
RE for life
Thread Starter
https://youtu.be/3x7MtmUSn9o]
A video of unstable fuel psi at wot high boost
Alfter this already update the wiring and fuel relay
A video of unstable fuel psi at wot high boost
Alfter this already update the wiring and fuel relay
Last edited by diyman25; 06-14-18 at 10:57 AM.
#358
RE for life
Thread Starter
With fuel wiring done
Decide to update the fuel system completely
Afraid to get a fake fuel pump online
So I chose Bosch 044 fuel pump from http://pegasusautoracing.com
Not the cheapest place but for sure is all real 044~
Decide to update the fuel system completely
Afraid to get a fake fuel pump online
So I chose Bosch 044 fuel pump from http://pegasusautoracing.com
Not the cheapest place but for sure is all real 044~
#359
RE for life
Thread Starter
Less then a mo before this years race
Mount my new tire wheel combo
18X11J RS05rr with 300/650/18 A005 M
From look of it, Is hard to tell with 11j. That could be a bit narrower to ideal setup
But on Advan catlog
They suggest 300/650/18 to mount on 11j if use in porsche setup and 12J to other GT
Don't know is tire contraction or engine position
But I think my home course is a bit on slow speed , so this can mater less
Mount my new tire wheel combo
18X11J RS05rr with 300/650/18 A005 M
From look of it, Is hard to tell with 11j. That could be a bit narrower to ideal setup
But on Advan catlog
They suggest 300/650/18 to mount on 11j if use in porsche setup and 12J to other GT
Don't know is tire contraction or engine position
But I think my home course is a bit on slow speed , so this can mater less
Last edited by diyman25; 06-16-18 at 06:20 AM.
The following users liked this post:
oriphinz (07-20-18)
#360
RE for life
Thread Starter
4 day before event
Still tuning the car on dynapack
Fighting a fuel pressure drop when car is hot
If u have enough information , every thing look scary but if u can pull it thought, will be trouble free season
Still tuning the car on dynapack
Fighting a fuel pressure drop when car is hot
If u have enough information , every thing look scary but if u can pull it thought, will be trouble free season
Last edited by diyman25; 07-16-18 at 10:30 PM.
#361
RE for life
Thread Starter
LF 278kg. RF 318KG
LR 334kg. RR 352KG
Front 47% Rear 53%
Front mid engine car is best it can get !!! #FD3S
#puresportscar
#frontmidengine
#cornerweight
#roadrace
#trackdaycar
#enduranceracing
#s?
#hardrace
#SUPERNOW
#rs05rr
#atldrybrake
#atlfuelcell
#airjack
LR 334kg. RR 352KG
Front 47% Rear 53%
Front mid engine car is best it can get !!! #FD3S
#puresportscar
#frontmidengine
#cornerweight
#roadrace
#trackdaycar
#enduranceracing
#s?
#hardrace
#SUPERNOW
#rs05rr
#atldrybrake
#atlfuelcell
#airjack
#362
Full Member
iTrader: (2)
Thanks for sharing!
I just finished reading this from the beginning, and you've given me a lot of inspiration for my own build, especially the twin-turbos. I haven't considered modified oem/hitachi turbos up to this point because it seemed too difficult to manage boost pressure with a ported engine and an open exhaust system, but you've changed my mind. Do the high-flow GCG turbos come with a ported wastegate?
I just finished reading this from the beginning, and you've given me a lot of inspiration for my own build, especially the twin-turbos. I haven't considered modified oem/hitachi turbos up to this point because it seemed too difficult to manage boost pressure with a ported engine and an open exhaust system, but you've changed my mind. Do the high-flow GCG turbos come with a ported wastegate?
#363
RE for life
Thread Starter
Took me a while to post update for my last race~
Why the race get cancel, due to thounder storm that is larger then country!!!!!
The track was serveier flood.........
So after two outlap, I decide to pull in and want to start from pit, I figure there might be few accident, so even I start from pit
I might have good result
While I pull in, there is emergency meeting
Say our race get cancel
Why the race get cancel, due to thounder storm that is larger then country!!!!!
The track was serveier flood.........
So after two outlap, I decide to pull in and want to start from pit, I figure there might be few accident, so even I start from pit
I might have good result
While I pull in, there is emergency meeting
Say our race get cancel
#364
RE for life
Thread Starter
Originally Posted by Tommykaira
Thanks for sharing!
I just finished reading this from the beginning, and you've given me a lot of inspiration for my own build, especially the twin-turbos. I haven't considered modified oem/hitachi turbos up to this point because it seemed too difficult to manage boost pressure with a ported engine and an open exhaust system, but you've changed my mind. Do the high-flow GCG turbos come with a ported wastegate?
I just finished reading this from the beginning, and you've given me a lot of inspiration for my own build, especially the twin-turbos. I haven't considered modified oem/hitachi turbos up to this point because it seemed too difficult to manage boost pressure with a ported engine and an open exhaust system, but you've changed my mind. Do the high-flow GCG turbos come with a ported wastegate?
They might use different spring
However I still running a tiny cat at end of tip (require by regulation) mabe this is why I don't have boost problem
The following users liked this post:
Tommykaira (08-03-18)
#365
RE for life
Thread Starter
Despite thunder storm
My qualify session still dry weather
However with wrong entrance timing I get hold up for few lap
With weather over 100f and humidity over 75% that really affect car performance
Beside weather , and timing
I think there is,few issue on setting it can improve
The front spliter too low, drag on corner at slower corner, this might be a reason my car feel more under then before at slower session
300/650/18 a,bit tall compare to 280, car seen to be lack on response
Rear spring switch to 24kg, but is too tall create too much pre-load, will switch to same weight but shorter
My qualify session still dry weather
However with wrong entrance timing I get hold up for few lap
With weather over 100f and humidity over 75% that really affect car performance
Beside weather , and timing
I think there is,few issue on setting it can improve
The front spliter too low, drag on corner at slower corner, this might be a reason my car feel more under then before at slower session
300/650/18 a,bit tall compare to 280, car seen to be lack on response
Rear spring switch to 24kg, but is too tall create too much pre-load, will switch to same weight but shorter
Last edited by diyman25; 08-06-18 at 10:01 AM.
#367
RE for life
Thread Starter
Originally Posted by Gilgamesh
That track is pretty tight, you should pick up alot from a 5.12 rear end ratio.
#368
RE for life
Thread Starter
After month of rain , not normal for this season
Weather finally dry out
Went to did some testing , when I clocking
My best lap time so far this season 1.51.4, only discover , I have very bad tire separation from my new A005 300/650/18, this usually happens on some old slick, but if this happens on new slick this could mean this slick is a very old stock from dealer, thus explain the grip is never I exoect from 300/650/18.......
Weather finally dry out
Went to did some testing , when I clocking
My best lap time so far this season 1.51.4, only discover , I have very bad tire separation from my new A005 300/650/18, this usually happens on some old slick, but if this happens on new slick this could mean this slick is a very old stock from dealer, thus explain the grip is never I exoect from 300/650/18.......
#369
RE for life
Thread Starter
Some update of car
Rear Rotor EGT seen to be high all this time
Even with xcessive manifold install
So decide to weld a two bug on manifold to shoot water injection directly to front and rear rotor runner, hopely will solove high EGT problem and have more Power too !!
Rear Rotor EGT seen to be high all this time
Even with xcessive manifold install
So decide to weld a two bug on manifold to shoot water injection directly to front and rear rotor runner, hopely will solove high EGT problem and have more Power too !!
#370
RE for life
Thread Starter
made a quick video compare AI and none AI injection
upper video is the one with AI. this both test in same day . within one hour of session.
as lap result both are very similar. but as driver feel with AI car seen to be slower response on mid range.
but with benfit with lower IAT and EGT. i will run like this setup for quite a while
upper video is the one with AI. this both test in same day . within one hour of session.
as lap result both are very similar. but as driver feel with AI car seen to be slower response on mid range.
but with benfit with lower IAT and EGT. i will run like this setup for quite a while
#371
RE for life
Thread Starter
every woder what is boost .8kg or 1.0kg affect on the lap time
on one of my session t try few set out on boost seting. made a video of it
lap time different is .7sec
average top speed on most of end corner is about 6-7km
on high speed S1-3 is about .2 sec faster but car is similar at slow corner
on one of my session t try few set out on boost seting. made a video of it
lap time different is .7sec
average top speed on most of end corner is about 6-7km
on high speed S1-3 is about .2 sec faster but car is similar at slow corner
#372
RE for life
Thread Starter
Some update before final race
Dual A/I hope set up to solve high EGT issue
4.777 final drive with 1.5way lsd , with large port, low end response is worse, so with shorter final drive to help the response
330mm R magic rear brake, with rear weight bias more then 53% u need much more affect rear beaks need it
Dual A/I hope set up to solve high EGT issue
4.777 final drive with 1.5way lsd , with large port, low end response is worse, so with shorter final drive to help the response
330mm R magic rear brake, with rear weight bias more then 53% u need much more affect rear beaks need it
Last edited by diyman25; 10-04-18 at 03:34 AM.
#373
RE for life
Thread Starter
2 week before race
Knight sport water pump pully
Have some water temp issue, could be the engine redline is much higher
And endless me20 brake pad
Great pad as usuall , can last more then 100lap on this track
And this bad boy racelogic micro input
So i can data log up to five Chanel on my logger
Knight sport water pump pully
Have some water temp issue, could be the engine redline is much higher
And endless me20 brake pad
Great pad as usuall , can last more then 100lap on this track
And this bad boy racelogic micro input
So i can data log up to five Chanel on my logger
Last edited by diyman25; 10-08-18 at 08:10 PM.
#374
RE for life
Thread Starter
Did a 4.77 test with only .8kg of boost(have some issue on Evc)
As I expect, with 4.77 , I have shift to 4th gear at turn 3 and last turn, using 4.4 I am right at sweet spot
this actually loose some time here
But at lowend pick up is,much better so once I fix my evc to high boost I should be able get some imporvent
As I expect, with 4.77 , I have shift to 4th gear at turn 3 and last turn, using 4.4 I am right at sweet spot
this actually loose some time here
But at lowend pick up is,much better so once I fix my evc to high boost I should be able get some imporvent
#375
RE for life
Thread Starter
Due to last race was cancel by storm
So from tomorrow to Sunday
We will be doing R2-R3 of one hour endurance
There are 7 TCR ( civic, Audi,seat)car joints the R3 of Race , what my plan is to use RE11-s as my R2 tire , to finish the race and get some point, and use new TCR spec Advan A005 slick at last round of race to see if I can beat some slow TCR at round3 (*???*)
So from tomorrow to Sunday
We will be doing R2-R3 of one hour endurance
There are 7 TCR ( civic, Audi,seat)car joints the R3 of Race , what my plan is to use RE11-s as my R2 tire , to finish the race and get some point, and use new TCR spec Advan A005 slick at last round of race to see if I can beat some slow TCR at round3 (*???*)