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View Full Version : First Impressions of GSR "Juice Box"


blownC5
10-15-2003, 05:17 PM
Easy install, looks awesome, excellent fit and finish. DEFINITE improvement in throttle response. I can?t say if it made an improvement in top speed, I just got it a couple hours ago and haven?t had a chance to run against any of my friends yet.
cgRacer
10-15-2003, 08:12 PM
I want better throttle response but maybe you can answer these questions when putting the juice box on a GSRTsi...
I'm assuming the juice box works with the stock Tsi carb but can I get better performance from the Walboro 15mm HP carb then from my Tsi carb? Will this work with my TGN air filter?
thanks
blownC5
10-15-2003, 09:08 PM
Yes, I have the stock tsi carb and as you can see from the picture the TGN filter works just fine with the Juice Box, in fact I even use an ADA billet choke between the TGN filter and the carb, works GREAT!!. The Juice Box takes the place of the original manifold so it really doesn't affect the air cleaner at all. I haven't used the Walboro carb, so I can't say if it's better or not, sorry.
gopedder13
10-16-2003, 05:57 AM
Was the powerband harder? Where you able to feel any top speed gains?
cgRacer
10-16-2003, 01:26 PM
blownc5,

Do you even need a ADA billet choke with this engine? Just curious because I;m getting this same setup. Is it the...
a120 - ADA V-stack Choke?
CG
Slimcandy428
10-16-2003, 03:14 PM
Originally posted by cgRacer
blownc5,

Do you even need a ADA billet choke with this engine? Just curious because I;m getting this same setup. Is it the...
a120 - ADA V-stack Choke?
CG It is just optional.
gopedder13
10-16-2003, 03:33 PM
I have an identical setup except different gear ratios, no juice box yet (just ordered 1) and no ts headkit yet, and I dont have a choke, but it takes about 20-30 pulls to get it to start, so I put a plastic bag over the K & N aftermarket filter and then it will start in like 5 pulls, so if you don't get a choke you can just use a plastic bag like i do, for some reason i dont like chokes because if you tighten the velocity stack to much you cant use them, and plus sometimes they have a tendancy to full down and choke the motor eaither a little or alot while your riding from the vibration.
blownC5
10-17-2003, 11:32 AM
No, you don't NEED the choke, but it does make it much easier to start, 4-5 pulls usually.
JBonnardel
10-20-2003, 01:17 PM
I have the Walbro carb. So far so good. I had to fatten up the high speed screw a bit to get it running best, but all in all I think the powerband comes on sooner, and stays on longer.
gopedder13
10-20-2003, 03:28 PM
Oh, so in otherwords you had to richen up the needle a little bit?
JBonnardel
10-20-2003, 04:03 PM
Originally posted by JBonnardel
I had to fatten up the high speed screw a bit

Yes, I mean to richen it.
cgRacer
10-21-2003, 10:18 PM
blownC5, You said you used the ADA choke? Which one exactly and where can I get it? A friend of mine told me I cant put the
,a120 - ADA V-stack Choke only, with the TGN filter.
Where can I get the choke you've got?
Masta Z
10-22-2003, 12:26 PM
OFF TOPIC: blownc5...do u have a blown vette?
blownC5
10-22-2003, 01:38 PM
cgRacer
I used an ADA billet choke(see picture). It makes a BIG diferance it starting, just 4-5 pulls usually. Looks factory, works great.

Masta Z 88
No, not anymore. My dad put a "ProCharger" on his old Vette, but he got a new one earlier this year and hasn't done much to it.
blownC5
10-22-2003, 01:53 PM
Sorry cg Racer, you asked specifically which choke and I didn't answer you fully in the previous post. I think I got it from ADA's online store but I'm not positive. I remember checking the hole size to make sure it wasn't smaller than the opening in the tsi carb that I have, it was just fine. Maybe Brooks could tell exactly which part number it is.
Masta Z
10-22-2003, 03:14 PM
Originally posted by blownC5
cgRacer
I used an ADA billet choke(see picture). It makes a BIG diferance it starting, just 4-5 pulls usually. Looks factory, works great.

Masta Z 88
No, not anymore. My dad put a "ProCharger" on his old Vette, but he got a new one earlier this year and hasn't done much to it. Oh okay....Prochargers are the best:cool:
cgRacer
10-22-2003, 03:45 PM
blownC5,
Well they have 2 to choose from...

Choke - HP Carb/Tanaka 40
http://www.adaracing.com/viewitem.php?id=gpvsck-hp&maincat=scooter

Choke - Stock G23LH/Tanaka 35
http://www.adaracing.com/viewitem.php?id=gpvsck-s&maincat=scooter

seems like they're both the same size and same product but one has mounting bolts? Will I need them? Do I need a velocity stack?

Sorry for the newbie questions.
blownC5
10-22-2003, 04:31 PM
I didn't use a velocity stack(see picture), just the filter//choke//carb. The air cleaner came with longer bolts and they were the ones I used, so, if you already have the TGN filter all you need is the ADA choke(without bolts). To be 100% sure I'd ask Brooks he would be the expert. Just to tie this in with the rest of the thread, here's a picture that shows the whole thing better. Filter, ADA choke and ADA "Juice Box".
cgRacer
10-22-2003, 04:33 PM
Thanks again...

PS who's brook?
CBlakeNS
10-22-2003, 06:38 PM
Originally posted by cgRacer
Thanks again...

PS who's brook?


A Special guy that is high and rank for ADA I believe...


His sn is ADA BROOKS..
cgRacer
10-22-2003, 07:58 PM
blownC5,
Did you tune the stock Tsi stock carb after putting the juice box in? It says something about a leaner setting required in the installation instructions?
blownC5
10-26-2003, 08:51 AM
Originally posted by cgRacer
blownC5,
Did you tune the stock Tsi stock carb after putting the juice box in? It says something about a leaner setting required in the installation instructions?

Sorry for the delay cgRacer, I haven?t been here for several days. To answer your question about carb tuning let me start by saying the obvious, the goal is to get the fuel/air mixture correct. This depends on both the atmospheric conditions(alt, temp, humidity) where you live, and the mods you have. I went a little leaner, but others have gone richer. The point is there is no set answer(sorry), you have to tune for what you have. Just a word of caution about going leaner, be careful, too lean can hurt your motor. I hope this helps.
Slimcandy428
10-26-2003, 08:56 AM
Just a small sidenote. Its always good to start richer, then to start lean, so openining the needles before you run with the juice box is always a good idea.
cgRacer
10-31-2003, 09:21 AM
I just got the Wallboro 15mm carb from ADA, GSR JUice Box and have the GSR ADA pipe all for my TSI. I wanted to know if the default carb settings will work fine. WIll I also have to play with the screw on the side to richen it a bit? WHat about the idle screw on that carb? ANy other suggestions for these parts?
cgRacer
11-02-2003, 08:35 PM
richening it worked. about one full turn. Now I gotta slow my idle.

Brooks,
The ADA choke that I have has a smaller opening than that of the ADA Walboro 15mm carb. Is there a choke with a wider opening? Its even smaller than the TGN filter hole?? Which choke (item number) has the same 15mm opening as the carb?
thanks
Brooks
11-03-2003, 10:06 AM
Originally posted by cgRacer
Brooks,
The ADA choke that I have has a smaller opening than that of the ADA Walboro 15mm carb. Is there a choke with a wider opening? Its even smaller than the TGN filter hole?? Which choke (item number) has the same 15mm opening as the carb?
thanks

Unfortunately, that is the only choke that we have. The choke was not designed for the 15mm HP carb. It was made for stock carbs and the WA-167. But, on our shop GSR with HP carb, I don't use a choke, and I've never had a problem starting it.
cgRacer
11-03-2003, 10:08 AM
Does this choke with a constricted opening decrease performance?
Brooks
11-03-2003, 10:13 AM
Originally posted by cgRacer
Does this choke with a constricted opening decrease performance?

Not sure, as I haven't tried one since it wasn't made for it. But, it probably restricts the air flow somewhat. Remove your choke and try it, then you'll know. It'd be easy to do.:)
blownC5
11-03-2003, 08:21 PM
I have the stock tsi carb. I just checked again to make sure, and while the ADA choke opening is smaller than the TGN air cleaner opening, the choke opening is exactly the same size as the tsi carb.

Just curious Brooks, the ADA online store says that your choke (part# gpvsck-hp) has a .625? opening, if I convert that to millimeters I get 15.875mm. I?m no expert and I?d like to learn, would you mind educating me about why this doesn?t work with a 15mm HP carb? Thanks.
Brooks
11-04-2003, 06:47 AM
Originally posted by blownC5
Just curious Brooks, the ADA online store says that your choke (part# gpvsck-hp) has a .625? opening, if I convert that to millimeters I get 15.875mm. I?m no expert and I?d like to learn, would you mind educating me about why this doesn?t work with a 15mm HP carb? Thanks.

The carb size is measured on the other side. The inlet side(air filter side) of the carb is usually larger and tapers down to the venturi, which then opens back up to the 15mm size. The inlet side of the 15mm carb measures around .700" or 17.8mm.
blownC5
11-07-2003, 05:27 PM
Ahhhh, now I understand, Thank you Sir.:)
gopedder13
11-07-2003, 05:48 PM
Blownc5 do u have aim i really need to talk to you... i just got my gsr juicebox and everything is good except the carb wont tighten down to the juice box all the way the screws r about 1cm to long...... this is with my k and n filter w/ vstack and choke... did yours fit with the the stock carb screws?