b16hybridsol

search isn't up right now and i'd like to figure this out. i finally got everything done on my car except for the radiator (still being made) . My car is an h22 turbo teg. Set up is t3/60-1, revhard mani, deltagate 7psi spring (sticker says), manual boost controller, spearco front mount, custom ic piping, hks ssqv. The problem is I don't think i'm building boost, i've got the manual boost controller turned all the way down so i assume the motor should be running 7psi. There are no leaks in the ic piping or intercooler, the wastegate is not opening, the bov is not going off, boost gauge shows vaccum then when reved it goes to 0 or a lil under, no vaccum leaks, all vaccum sources are ran to the intake mani. I dunno what else it could be, the turbo spools (can see it spin). it just doesn't boost. please help

beepy

You probably just aren't revving it enough to make boost. You can't just tap the throttle and have 7 PSI, you're going to have to be at or above 3000 RPM for a few seconds to spool up that turbo.

b16hybridsol

taken it to 4.5k sorry forgot to add that

beepy

Have you tried removing the boost controller?

b16hybridsol

oh, boost controller is hooked up to the side nipple on the wastegate and nothing is hooked up to the top nipple of the gate

bubbahatch92

what are you using for engine management? When I first boosted my h22 I could'nt make boost because of my map sensor would put my car into limp mode.

G"UNIT

so your sitting there reving your motor and seeing if it willl make boost? i dont think your turbo will build boost at idle or just sitting there reving it up... mine dont.. i have to go out and drive it for it to make boost.

b16hybridsol

right now i'm using 450s the hack and a p30 outta my del sol vtec, i've got hondata 4b sitting here but it runs crazy rich with tht hooked up, wrong injectors in the base map and i don't have an emmulator to change it. Ijust tried to eliminate the boost controller and still no boost, it revs up fine, just still no boost

b16hybridsol

i've heard people just sitting, rev the car up and make boost, bov sounded off and all, i held my car at 4k for like 3-4 seconds and still nuthin

b16hybridsol

i'm about to take a charge pipe off and see how hard its blowing ha, i can'tthink of anything else to do

b16hybridsol

ok took the bov off , i can feel pressure build in the charge pipe but i dunno if its enough boost or not, the bov still isn't goin off. i've backed the screw all the way out of the bov and put it all the way in and tried in between and it didn't go off still. Anny more ideas? thanks

b16hybridsol

damnit search still isn't working, help guys

TheShodan

iTrader: (14)

Sitting there reving the motor on a honda is not going to create boost. You're not creatin' enough exhaust gases to get "boost" while sitting in the parking lot. The way that you're describing it, it seems you're not actually DRIVING to create boost. Am I incorrect? If I'm wrong, please let us know. It seems as though you're trying to create boost while sitting there. You're not a Mitsu baby....

b16hybridsol

yes, its sittin in my garage, i just finished weldin up my downpipe and gettin everything finsihed up. It should still build some pressure though shouldn't it, i mean the bov isn't going off at all when its rev and held at 5k

jfoster

iTrader: (1)

It should create boost even when not moving. The higher the RPMs the more exhaust pressure you have the faster the turbo will spool. That big of a turbo would probably take 4000 rpms to get it rolling.

Is the turbo spooling? Pull your charge pipe and have someone else hold the throttle at about 4,500 rpms for like 15-20 seconds. If you feel air being pushed out it is at least spooling. Soooo...maybe your BOV is ****? But I guess that still wouldn't explain the boost guage. You sure the boost guage it hooked up right?

r cleghorn

it will not boost unless you are driving. there is no load on the motor unless you are driving, and therefore the most boost you are going to get is about 1/2 lb. the people that you here revving there engines and the BOV going off are running a 2-step. get your radiator and drive the car, if still no boost, then you've got a real problem.

b16hybridsol

i dunno how to mess up hooking up a boost gauge, its hook up to the intake manifold, i can feel pressure when i took off the charge pipe but i guess its not enough to set off the bov or move the gauge

b16hybridsol

thanks for the responces guys, i get my radiator in a week, then we'll know i guess

TeamCracka

You're not going to build positive pressure when there is zero load on your motor!
I could take my car upto the 8200rpm redline without building ANY boost. You need to have the throttle nearly wide open AND be on a road, dont expect to hear your BOV if you're revving in the garage in neutral! unless you jack your car up a little so there is some load on the motor

jfoster

iTrader: (1)

It looks like I was wrong. But thats an easy test. Jack it up and then see what happens.

b16hybridsol

i was just under the impression that the bov would sound off even when not under load, friends mr2 does, friends supra does, 2 eclipses, 2 rx7s, they all blow off just sitting there reving, but oh well, after i get my injectors i'm goin to take it to the shop to get tuned so i guess we'll find out there

LBR92DA-T

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16hybridsol &raquo;</TD></TR><TR><TD CLASS="quote">oh, boost controller is hooked up to the side nipple on the wastegate and nothing is hooked up to the top nipple of the gate</TD></TR></TABLE>

What wastegate are you running? the side nipple for the tial is vacuum and the top is for the boost controller i believe..

b16hybridsol

racegate, the hook up is rigth cause if you do it the other way the wastegat stays open

TeamCracka

Actually I had to reset the timing belt on mine tonight, and I did notice that even after reving it the BOV does expel some air and make a little Pshh sound. I have mine super loose so it opens when there's hardly any pressure difference but it still isnt anything like when there's load on the motor.

Also, I think I was unclear but I ment to jack the car up a little so the tires are on the ground but not all the way (of course this'll **** up the garage floor ) so you can have some load on the engine from the wheel friction.

MiraiZ

dude...just drive the damn car...turbos won't build boost in neutral unless youre running super high compression or have a very small turbo. my car creates about 2psi of boodt at 7500rpms in neutral. You need to drive it ti create a load on the engine so that it builds enough exhaust pressure to spin the turbine...