boost spiking question

Thread Tools
 
Search this Thread
 
Old Dec 25, 2002 | 08:20 PM
  #1  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default boost spiking question

ive had my drag kit for abot 3 months now, it came with the deltagate, when i would go full throttle the wastegate would open at 6-7 lbs but would spike all the way to 15-18 lbs making the car "pop" and skip .., i thought it was the deltagate , so i bought a tial .45 bar, for about a day it would hould 7-9 lbs in every gear all the way to redline, then it started doing the same thing,ive checked my vaccum lines about a thousand times, its the drag gen 3 kit, any help would be greatly appreciated,
tia
jonathan
Reply
Old Dec 25, 2002 | 08:34 PM
  #2  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (JonathanH)

ttt
Reply
Old Dec 26, 2002 | 12:20 AM
  #3  
Flamenco-T's Avatar
Honda-Tech Member
 
Joined: Feb 2001
Posts: 6,351
Likes: 0
From: Tejas
Default Re: boost spiking question (JonathanH)

well, for one, drag manifold design does have tendencies to spike more than usual, due to the wastegate flange located on the a single runner. but at the very most, it shouldn;t spiked to more than 2-3 psi....given a cold temp on the intake air ( the colder the temp, the more prone for it to spike). back in the old days with the drag manifold and tial, I used to spike 1-2 psi at the most, maybe 2 psi at cold night

I'd double check the way you route your vaccum lines first, you may want to post how you run them, maybe then I cna give you some suggestion on re-routing it to make it more efficient...

stan
Reply
Old Dec 26, 2002 | 07:35 PM
  #4  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (Flamenco-T)

the line that goes to the side of the tial comes straight off of the turbo , zip tied to the fan shroud, no kinks, no holes , nothing.
thanks
jonathan
Reply
Old Dec 27, 2002 | 10:39 AM
  #5  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (JonathanH)

any suggestions??
tia
jonathan
Reply
Old Dec 27, 2002 | 10:49 AM
  #6  
servion's Avatar
Honda-Tech Member
 
Joined: Jan 2002
Posts: 1,822
Likes: 1
From: Colorado Springs, CO, USA
Default Re: boost spiking question (JonathanH)

Just something to try:

Instead of running it off the turbo, you could try running it off a vacuum source from the intake manifold.... mine runs directly from the vacuum lines at the fuel pressure regulator to the side of the tial.... works great. The boost source on the side of the turbo is before the boost has hit the intercooler... the intercooler will drop the pressure (by cooling the air), which can effect something... try it out and let us know how it goes.
Reply
Old Dec 27, 2002 | 07:54 PM
  #7  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (servion)

ttt. tried that and it only spiked t0 14-16.
any other suggestions??
tia
jonathanh
Reply
Old Dec 28, 2002 | 08:19 AM
  #8  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (JonathanH)

ttt
Reply
Old Dec 28, 2002 | 10:39 AM
  #9  
PrecisionH23a's Avatar
Honda-Tech Member
 
Joined: Mar 2002
Posts: 14,296
Likes: 1
From: Charleston, SC
Default Re: boost spiking question (JonathanH)

jonathan, hey its anthony, long time no talk. Are you still running the avc-r by any chance? The popping noise you hear at 18psi is probably detonation and the skipping is mis-fire when the engine is under heavy load.
Reply
Old Dec 28, 2002 | 11:00 AM
  #10  
DD_JonnyLee's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2002
Posts: 1,790
Likes: 0
From: Greenville, S.C
Default Re: boost spiking question (GudeH23a)

hey whats up anthony, nah i sold the avcr when i got rid of the 95, hit me up on aim my sn is jonnysc20
any other ideas to get this thing to stop spiking so damn high??
jonathan
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Vtec-G2teg
Forced Induction
6
Mar 22, 2010 09:33 AM
delsinner13
Forced Induction
9
Aug 10, 2006 07:27 AM
D15Bbigred
Forced Induction
26
Jul 1, 2006 12:40 AM
Ryceboi318
Forced Induction
11
Feb 2, 2005 12:15 PM
ILOVEGIRLS
Forced Induction
8
Feb 19, 2002 11:34 AM




All times are GMT -8. The time now is 01:09 PM.