TeamSwift

Home of the Suzuki mini-compacts ! Your Home for all things Suzuki Swift, Geo Metro, Holden Barina, Chevy Sprint, Pontiac Firefly, and Suzuki Cultus. TeamSwift is a technical performance oriented community!
It is currently Mon Oct 16, 2017 11:16 pm

Underbody braces, turbos and more!

All times are UTC - 5 hours




Post new topic Reply to topic  [ 15 posts ] 
Author Message
PostPosted: Thu Aug 20, 2015 7:15 pm 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
Hey guys ive had so much help through this forum i wanted to thank everyone for the countless threads on here i just about finished up my turbo and cam upgrade on my 1987 turbo sprint and it is a shockingly fun ride lol.
Im running a garrett gt1544 at 10 psi and a 3tech 226/395 all this on stock header and intercooler/hoses, the intake piping is custom i just fabbed up out of stock exhaust systems ive pulled on other cars the head is also freshly rebuilt by a local shop i use for my engine builds i really wanted 3tech to have a go at it but at the time i needed the car running asap i believe all i have left is welding up my muffler and making a filter adapter for my mass air.for those wondering about how i got the g1544 bolted to the stock exhaust manifold i simply bought both hot side brackets for the turbo online and welded up the 3 bolt bracket on and since its larger i was able to weld it on the inside opening as well as the outside then fabbed up my own down pipe with a 3" oval to round pipe which makes the transition in only 1.5 inches.very tempted to turn the boost up but my goal for this car was to have a fun reliable car for my commute and it definitely seems ive accomplished that. I purchased the car around march in camarillo and it came with a lot of cool original dealer paperwork too. I also have a 95 3/5 metro i used to commute which will probably end up for sale now. Anyhow now ill just be upgrading suspension stuff little by little i like stiff track like suspension so if anyone has any spring/shock/custom coilover recommendations id greatly appreciate them. Thanks again
I'll try amd get some pics up as well.


Top
 Profile  
 
PostPosted: Thu Aug 20, 2015 8:57 pm 
Offline
User avatar

Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
Fresh Meat. :twisted:

It ain't real unless you show us some pics!


Welcome to Team Swift!

We have an annual meet in your area coming up soon.
Would be nice to see some new members show up.
So glad to see some new builds on here, these cars
are getting harder to find. Congrats on the build.


Top
 Profile  
 
PostPosted: Thu Aug 20, 2015 11:37 pm 
Offline
User avatar

Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
Posting up some pics for z0sicks07 who had trouble uploading them from his phone.

Image

Image

Image

Image

Image

Image

Image


Top
 Profile  
 
PostPosted: Fri Aug 21, 2015 12:24 am 
Offline
User avatar

Joined: Sat May 18, 2013 12:48 am
Posts: 170
Location: San Diego CA
Nice! More California Members! Jamal are you talking about December over at Malibu?


Top
 Profile  
 
PostPosted: Fri Aug 21, 2015 7:28 pm 
Offline
User avatar

Joined: Thu May 12, 2011 10:08 pm
Posts: 625
Location: texas houston
Video please. And make it interesting.


Top
 Profile  
 
PostPosted: Fri Aug 21, 2015 10:02 pm 
Offline
Island Inbreeder
User avatar

Joined: Tue Oct 18, 2005 6:56 pm
Posts: 6347
Location: Emerald city Washington
That's a pertty head
.
.
.

_________________
.

t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


Top
 Profile  
 
PostPosted: Sat Aug 22, 2015 4:20 am 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
Thanks for the replies guys,
I need to shim the pressure relief on my intercooler since it starts to dump boost around 4k rpm. Ive yet to get anything done (except for some spirited driving) but i should be good to go this weekend and have some nice video. Just a thought, would it be unsafe to just close off the pressure relief? Is that putting too much trust in my wastegate? Any other advice or recommendations you guys might have feel free to shoot my way.


Top
 Profile  
 
PostPosted: Sat Aug 22, 2015 10:43 am 
Offline
User avatar

Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
When the throttle plate closes, the pressure spikes and has no where to go.

The Pop off Valve, is what relieves this pressure typically between shifts.

Most other cars have a BOV or Blow Off Valve, which is the same
concept on a slightly larger scale, and they are usually adjustable.

If you do not relieve the excess pressure, it will flow backwards through
the turbo compressor side, causing a distinctive fluttering sound and will
give your turbo a very short life.

The wastegate acts like as a regulator for the boost pressure you produce.
Lets say your turbo can produce a maximum of 40psi, your wastegate
is set to vent/bypass exhuast so the turbo only produces say 8psi.
Some have an adjustable arm so you can change the boost settings
higher or lower, and then the boost setting is regulated by the wastegate.
Those that have a fixed arm on the wastegate can only be manipulated externally
using a boost controller, which can only increase boost (not decrease).
You can also manipulate boost on a turbo with an adjustable wastegate with
and external boost controllor, but the main difference is the preset boost
setting can actually be adjusted on the turbo and be increased or decreased
by adjusting the length of the pushrod, where as if your wastegate is non-adjustable
you can only increase boost by adding an external boost controller.
An electronic boost controller will also monitor and more closely control
your boost preventing boost creep, and help eliminating spike.

Hope that answers your question.

I would say get an accurate air/fuel gauge and make sure you're not
running lean. You may end up having to install bigger injectors among
other things.


Top
 Profile  
 
PostPosted: Sat Aug 22, 2015 11:50 am 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
Thanks for the quick reply, the gt1544 is set to 12 psi on the wastegate and for about the first 2 days was actually hitting it then i guess the 28 year old relief valve finally got loosened up and started giving me 7 prematurely the wastegate is threaded and does look adjustable but id rather not go that route. I also have a grimmspeed mbc set up so i think im gonna go the route of shimming the relief valve if i can get that damn clip off lol. I was also running pretty advanced those first days and could easily get cut off by the ecu so with shimming it today ill also be putting 10-15 click on the maf spring and checking my plugs. I have an autometer boost gauge and was supposed to buy their air fuel ratio set up but didnt now im just being cheap (i broke my hand back in july so dissability isnt as fruitful as working) i have a month long gig in corpus Tx in a month so id like to get my sprint in good shape by then and when i get back there will be some fun new intercooler set up for it 8)
But todays mission will be holding 12 psi and reach good rpm without cutting out


Top
 Profile  
 
PostPosted: Sat Aug 22, 2015 2:20 pm 
Offline
User avatar

Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
Be sure and mark the original position of the maf spring as a reference point,
if your hands slip and the wheel goes flying, at least you have a starting point.
I ended up doing the clicks 2-3 at a time, it doesn't like large adjustments
and does better with gradual adjustments to try to beat the fuel cut.

The stock POV is good till almost 11psi, but I hear they get a little
weak with age, so you might check the spring and a little shimming
should put you good. Just don't get it too tight because you definately
want to hear it working between shifts, at least 1st and 2nd.
An aftermarket BOV with the vacuum assist will ensure it spits
between everyshift. A good EBC will also let you tailor the spool up time,
as well as cockpit adjustments,
so you might think about that investment in the future.

I'll mention this since you don't have an A/F yet,
but getting into closed loop is tricky, you won't get the additional
fueling you need under load till you reach the a preset time,
it's about 3-5 minutes regardless of operating temp.
You'll quickly go lean if you stomp on it shortly after startup.
If you have an A/F you will notice the additional fueling
under load after reaching the preset time, it has to do
with the way the factory ECU is setup. Just a heads up
on that.

viewtopic.php?f=22&t=60468


Top
 Profile  
 
PostPosted: Sat Aug 22, 2015 5:29 pm 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
That makes a ton of sense it had terrible low rpm manners if not warmed up for a bit. i shimmed the relief valve and got the psi to a steady 10 w no cut so i left the maf as is.i also redid my oil drain line today as it was slightly pinching so i put a 5/8 copper 45 degree in there to make 2 straight runs instead of the 1 bent line so far so good just need to trim my intake pipe to make room for a filter. I really need to stop driving it without one but i gotta say its addictive :mrgreen:


Top
 Profile  
 
PostPosted: Mon Aug 24, 2015 8:37 pm 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
I keep getting the tempurature light at about 8 or 9 psi even on mellow driving. Tempurature has never been anywhere near half, anyone know what would be causing this? Would the cts have it as a dummy signal to the ecm if it thinks its being pushed?


Top
 Profile  
 
PostPosted: Mon Aug 24, 2015 8:39 pm 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
Also working on picking up an autometer wideband this week


Top
 Profile  
 
PostPosted: Wed Aug 26, 2015 7:47 pm 
Offline
User avatar

Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
There are 3 temp sensors on the head/manifold.
The ECU temp sensor is one of the larger sensors on the intake
manifold and all the temp sensors work independently.
The other smaller single wire sensor on the manifold is
for the needle gauge on the speedo console.
The idiot light sensor is on the side of the block, behind
the distributor. You likely have a bad sensor or the single
wire is grounding out.


Top
 Profile  
 
PostPosted: Thu Aug 27, 2015 12:52 am 
Offline

Joined: Thu Apr 30, 2015 8:40 pm
Posts: 50
Location: Los Angeles
Thanks Jamal that makes me feel a little better. Coincidentally i had my radiator cap crap out on me today
But hopefully that ends there. Also my shimmed pressure release valve is letting go prematurely again so i found another larger top mount intercooler id like to go with and also aluminum piping. Only reason for top mount is that with the larger cam id like to keep turbo lag to a minimum the only problem is it is 2.5 inch intercooler. I would still run throttlebody sized piping with reducers a little more research and this thing should be pretty promising. And on a side note my first tank churned out a whopping 24 mpg


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Google [Bot] and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group