11 psi intercooled gone, now 15 lbs of straight boost.
07-10-2002, 03:19 PM
#1
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
11 psi intercooled gone, now 15 lbs of straight boost.
ok guys, i have a JRSC setup that i was running 11 lbs of boost with an air to liquid intercooler i made. my best time with that setup was 12.1 @ 112mph.
the intercooler worked perfectly, but i had issues with my alternator, so the intercooler had to be removed.
upon removal of the intercooler, i decided to up the boost, lower timing slightly, and add fuel.
HOLY FUGGIN SHEET !!!
it feels like the car is faster now at 15 lbs of un-intercooled boost opposed to 11 lbs of intercooled. the car pulls hard as nuts throughout the powerband, from like 2000 up to 8000.
man, i cant wait to see wut this sum bitch will do now!!!!!!!!
the intercooler worked perfectly, but i had issues with my alternator, so the intercooler had to be removed.
upon removal of the intercooler, i decided to up the boost, lower timing slightly, and add fuel.
HOLY FUGGIN SHEET !!!
it feels like the car is faster now at 15 lbs of un-intercooled boost opposed to 11 lbs of intercooled. the car pulls hard as nuts throughout the powerband, from like 2000 up to 8000.
man, i cant wait to see wut this sum bitch will do now!!!!!!!!
07-10-2002, 03:20 PM
#2
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
by the way, im running 15 lbs of boost on the stock motor, B18c1, with over 130,000 miles on it.
yeah biatch!!!!!!
1 for me
1 for the homeys
yeah biatch!!!!!!
1 for me
1 for the homeys
07-10-2002, 03:41 PM
#5
Honda-Tech Member
Join Date: Jun 2002
Location: West Burbs Chicago, USA
Posts: 576
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (DragIIDigital)
I remember reading one of his other posts when he put the intercooler on and he said that he would loose boost w/ intercooler. im not sure i understand the logistics of that but im sure he isnt lying. anyway 15lbs 
that is ****** bad ***. good luck with the setup and at the track. im sure everyone would like to see some times.
that is ****** bad ***. good luck with the setup and at the track. im sure everyone would like to see some times.
07-10-2002, 03:44 PM
#6
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (DragIIDigital)
believe me, i didnt want to remove the air to liquid intercooler. i had to remove it because i cut down part of the voltage regulator to lower the supercharger 2.5 inches. the alternator finally crapped out, so the intercooler had to be removed. upon removal of the intercooler, i decided to up the boost to 15 psi and see how it runs. to my amazement, it is pulling harder now at 15 psi, than before with 11 psi of intercooled boost. go figure!!
Trending Topics
07-10-2002, 04:23 PM
#9
Honda-Tech Member
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (Cramerox)
I think it has more to do with the fact that he's running almost 50% more boost at 15 psi vs 11 psi. I'd imagine that the 15psi non-intercooled setup will be fast as hell until the JRSC gets hot. The 11psi intercooled setup is probably not as fast, but it's probably more consistent.
Alex, do you have a plan in the works so that you can put the IC back on and have a properly functioning alternator?
Sonny
Alex, do you have a plan in the works so that you can put the IC back on and have a properly functioning alternator?
Sonny
07-10-2002, 04:27 PM
#10
Honda-Tech Member
Join Date: Nov 2001
Location: Bay Area, Ca, United States
Posts: 2,201
Likes: 0
Received 1 Like
on
1 Post
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
if it sounded like i was being sarcastic i wasnt...im just very interested
But lets say u keep it at 15lbs with the IC you think it will run the same compared to 15lbs with no IC?
LOL you should sell the design to JR and make a quick buck.
But lets say u keep it at 15lbs with the IC you think it will run the same compared to 15lbs with no IC?
LOL you should sell the design to JR and make a quick buck.
07-10-2002, 05:22 PM
#11
Honda-Tech Member
Join Date: Oct 2001
Location: A town near you
Posts: 1,520
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (Cramerox)
This guy I know had his motor built and ran a jrsc@ 15lbs and a 100 shot on it. I dunno how the supercharger lasted, but it did.I saw him beat a low 11sec Supra. He went turbo now because he wanted more power and he says he actually regrets it. Says he has more problems, he probably tuned his car with a gameboy if you know what I'm saying.
i'm scurred... that thing is gonna BLOW!!!
07-10-2002, 05:53 PM
#13
Member
Join Date: Sep 2001
Location: Denver, PA, 17517
Posts: 1,096
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (csufweed)
I thought the JRSC became really ineffecient above like 10-12 psi? How long do you run 15psi for, just 1/4 or for daily driving?
07-10-2002, 09:46 PM
#15
Join Date: May 2002
Location: San Jose, CA, USA
Posts: 221
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (VaporTrail)
Wouldnt you start to get cavitation at the lobes in the S/C? I meen simple physics tells you that once this thing reaches a certin speed that it is going to stop flowing any extra air, according to JR these things are already approching 14,000RPM's...
07-11-2002, 12:56 AM
#16
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (FMXer)
as far as the charger blades shredding, take a look at the photos below. these are photos of when i had the intercooler on the car, and the charger was spinning at 15 psi for over 3 weeks of driving. after removal of the charger, i inspected all the blades, NOTHING WRONG!!! PERIOD. the charger will not blow up, believe me. i'll probably go to the track now and hit low 12's again or even high 11's with this basic setup at 15 psi. eveerybody's always going by "hear-say". Jackson Racing said the charger cant spin above such and such, and JR said this, or that. I go by real world experiences.And at 15 psi unintercooled, the car is running awesome.
Period.
2 for me
none for the homeys
Period.
2 for me
none for the homeys
07-11-2002, 12:56 AM
#17
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
07-11-2002, 01:08 AM
#18
New User
Join Date: Nov 2000
Location: Tampa, FL, USA
Posts: 3,467
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
well in that case, I'll save you the personal story of a customer who insisted upon running 16psi on his GSR and when the rotors DID collide a short time later, due to thermal expansion, it completely destroyed the motor, as the shreds went straight into the combustion chamber. But hey, we were the first JR car into the 12's, 11's, and we never ran that amount of boost, or even close to it, so what do we know?
07-11-2002, 02:05 AM
#19
New User
Join Date: Apr 2001
Location: tampa, fl
Posts: 320
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost.
while an air to liquid intercooler is more efficient than a air to air intercooler, there is inherently a boost loss in intercooling the air charge. so he didnt go from 11 to 15psi, and i wont even try to guess what boost he lost through the intercooler, i did find some articles that showed an 18% boost differential (loss) when adding an intercooler (air to air) on a supercharged cobra. the cobra went from a consistent 12.2 psi before the intercooler and a consistent 10 psi fater the addition of the intercooler.
in a similar comparison, a turbo saab showed a consistent loss of 2 psi with the addition of an intercooler.
so we can SURMISE (in no way scientifically proven) that the removal of your intercooler and the upping of the boost actaully took you from ABOUT 9 psi to 15. . . .
in a similar comparison, a turbo saab showed a consistent loss of 2 psi with the addition of an intercooler.
so we can SURMISE (in no way scientifically proven) that the removal of your intercooler and the upping of the boost actaully took you from ABOUT 9 psi to 15. . . .
07-11-2002, 02:25 AM
#20
Better than steak
Join Date: Jan 2000
Posts: 16,859
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (sloaccord)
while an air to liquid intercooler is more efficient than a air to air intercooler, there is inherently a boost loss in intercooling the air charge. so he didnt go from 11 to 15psi, and i wont even try to guess what boost he lost through the intercooler, i did find some articles that showed an 18% boost differential (loss) when adding an intercooler (air to air) on a supercharged cobra. the cobra went from a consistent 12.2 psi before the intercooler and a consistent 10 psi fater the addition of the intercooler.
in a similar comparison, a turbo saab showed a consistent loss of 2 psi with the addition of an intercooler.
so we can SURMISE (in no way scientifically proven) that the removal of your intercooler and the upping of the boost actaully took you from ABOUT 9 psi to 15. . . .
in a similar comparison, a turbo saab showed a consistent loss of 2 psi with the addition of an intercooler.
so we can SURMISE (in no way scientifically proven) that the removal of your intercooler and the upping of the boost actaully took you from ABOUT 9 psi to 15. . . .
art
07-11-2002, 05:34 AM
#21
Join Date: Jan 2002
Location: Caracas, Miranda, Venezuela
Posts: 111
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
Shybrid,
I have a JRSC making 11.5 psi at the track and 10.5 psi in daily drive (my city is 1000 ft and the track is 200 ft).
I think that you can solve (partially) the hot problem, that make possible that the blades expand a colapse, using a N2O shot (25 to 50 hp), do you trie this way?
I have a JRSC making 11.5 psi at the track and 10.5 psi in daily drive (my city is 1000 ft and the track is 200 ft).
I think that you can solve (partially) the hot problem, that make possible that the blades expand a colapse, using a N2O shot (25 to 50 hp), do you trie this way?
07-11-2002, 05:51 AM
#22
Join Date: Mar 2002
Location: lafayette, la, usa
Posts: 2,018
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (dariusz)
just keet a digi camera with you just incase it does blow up. i want to see what it looks like!!
07-11-2002, 06:03 AM
#23
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (CovertFI)
look guys, ill post a video of everything.the boost gauge under boost, the motor shot, the tachometer zipping from 2000- 8000 in a second, etc..
i have a digital camera that will record videos, i just dont know what website to use to host them. after recording a video, how do i get it onto this site ??
you give me detailed explanation on how to do it, and ill do it.
1 for me
1 for the web *****
i have a digital camera that will record videos, i just dont know what website to use to host them. after recording a video, how do i get it onto this site ??
you give me detailed explanation on how to do it, and ill do it.
1 for me
1 for the web *****
07-11-2002, 06:15 AM
#24
New User
Join Date: Dec 2000
Location: Skunk2, rulez
Posts: 1,942
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (SCHYBRID)
so that's it , a jr sc on a stock b18c1? what kind of dyno numbers are u putting down.
I'd listen to these guys about running high boost on your supercharger they know what they're talking bout, especially vaportrail, they're trying to help keep you from writing a post saying you blew your motor at 15 psi. I'd throw some nitrous on to cool that charge some, its gotta be super hot.
I'd listen to these guys about running high boost on your supercharger they know what they're talking bout, especially vaportrail, they're trying to help keep you from writing a post saying you blew your motor at 15 psi. I'd throw some nitrous on to cool that charge some, its gotta be super hot.
07-11-2002, 06:21 AM
#25
Honda-Tech Member
Thread Starter
Join Date: May 2001
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Re: 11 psi intercooled gone, now 15 lbs of straight boost. (FAST94GSR)
i like to learn things the hard way, by blowing up my charger blades.if it blows, that will give me a reason to go turbo in the future. i'd love to go turbo anyway, the charger is fun, but i want a new challenge,"TURBO". i know i wont get the chance to go turbo yet, cuz the charger will last another 2 years or more.btw, its not my daily driver, its my daily stress reliever.