As many of you may or may not know, ZPIracing uses our racing program to further develop parts for you our customers. This has been our R&D approach on the tC and the valuable data we have learned and gathered has reflected in the best parts money can buy with the all guess work taken out as we push our tC’s to the limits so we can tell you where to stop.

Now on to the xB, we have been developing a cutting edge turbo kit for the xB/xA over the last few months. Taking an innovative approach to turbo charging technology has leaded us to the only logical turbo kit design on the market today. We have been overcoming hurtles over the last few months but we finally made it to the track on Friday. Although we where plagued with problems we may have had one of the most informative nights that we have had in the xB thus far.

The first pass down the track the car popped out of first gear coming off the line by the time we got it back in gear we managed a 16.5. The second pass the car was not building boost correctly from a loose intercooler pipe we ran a high 15 low 16 on 2-3psi intake manifold pressure. We got the bugs worked out of the car turned the boost up to 12psi did a few runs in the parking lot got the AFR dial in we where ready to go 12’s.

We get to the line next to nitrous powered Z28. Light goes green and we snap an axle in two. The xB did not have a very productive night at the track as far as times goes but we learned a lot in chassis setup and development. The xB chassis needs some serious reinforcement. The entire car twist coming off the line on a drag radials.

We have learned the xB is not setup to handle 230+whp which is what we estimate that we where making on 12psi. We will now look in to some chassis reinforcement in the next few weeks and go back to the track. The tranny and engine seem to be handling this power okay so far. We will keep the community up to date we continue to push the limits of the xB platform.

If you have any other questions about the platform or design that we may be able to answer please feel free to post up and we will try to answer them.

-ZPIracing

 

It takes ***** to post not so good days at the track.

I am glad you have posted your woes. People need to realize nobody gets everything perfect the first time.

What size and brand of injectors are on it for 12psi? And you still have no emanage right?

 

what happen to those people saying they had that much power?

 

That makes no sense...

 

???

 

we are using our ZPI 550cc plug and play injectors..We are learning right now and have no problem sharing our expirences with you guys so you know what to expect.

 

And again, you are still NOT using any engine management to this point.. correct? Just a sized maf pipe?

 

BTW, ZPI, are our injectors high resistance or low resistance? As in, are they 13.8ohm or in the 2ohm range?

 

not to sound disrespectful, but anyone else pick up the stupidity in this statement?

 

It reads like a clear and precise statment to me... Where is the stupidity? They had the car running around 230+ whp and somthing broke, which means plain and simple it was not designed to hold that much power, with out it being beefed up. Guess im stupid to, cause it sure read fine to me...but then again I am just a FL redneck and Kenny is a KY redneck and us rednecks understand each other pretty good.. Yeeehaaaaawww gitterdone..

Now that being said and done.. I would like to persoanly thank ZPI for pushing there cars past the limit for us, so they can find out what things will and wont break so the rest of us dont have to. Not to many other companies, if any, out there are willing to do this for the xB and xA platform and then come on here and tell us about the good and bad. All the other companies seem to design one thing and move on...So once again ZPI thankyou I know most of us look forward to seeing what you find and come out with for us in the future.....

 

ugh, fanboys

 

Nope. Do you realize you only hear good things from other companies. ZPI has worked hard for the Scion community and has stepped past boundaires that noone else has gone through. Their R&D is the best in the FI are of the xA and xB. I am sure you can expect to hear more news from them for a long time. Thier kit made 181HP on the dyno. They didn't get out to the track and now that they have, they have pushed it little by little to see what the limit is on their kit and the car itself.

 

i believe prototype is talking about the statement in which the xb is the ultimate econo box coming stock with 98 hp, and them not setup to handle 230 hp is an obvious statement, because the xb does in fact only come with 98 horsepower, this is gonna turn into another zpi hate thread, and i dont necessarily like em anyway, it was a comment on the XB not ZPI, in my opinion, forgive me if im wrong

goodluck with your xb

 

Geez!!!....well I have to give them props and usually I don't give them props. They have the ***** to post bad news which is a good thing and they are pushing the limits to see where the weakness in the car is and effort should be recognized...now where is the 230hp dyno sheet?

 

will ZPI be looking at getting strengthend axles?

also how long do you recon the oil pump will last with 230 whp?

 

The statement about the xB and 230whp is more has a statement about the chasis design than the drivetrain. We have pushed the tC to 400whp with basically stock everything with out issue. If the car would have been on true street tires the axle would have held at those power levels also.

I guess if I am stating the obvious then I apologize, but a lot of people on here appreciate the plain and simple explanation of something rather than in depth tech articles.

The xB and xA are a great little platform with the enigne holding much more power than expected. We do not know what will fail next but I can assure you we will continue to push it until we find it. We will then come up with a solution and contiune from there.

We are in the business of making fast reliable cars that may or may not have been intended to do so. We are not scared to break parts or push the limits. Our R&D cars are just that cars that we beat the **** out of. We do not take them to shows we beat them everyday to insure that the product you are customer gets has been tested and retested to make sure your show car or street cars makes it to every event.

-Kenny

 

yes but then I would say someting like well it can't handle 12lbs of boost etc....Not say 230hp people would obviously want some proof of a bold statements like that IMHO

 

i dont care the exact power output, but if its anywhere around 200 or beyond i dont care if thats on stock internals or not, or what psi ,

i do care about the small things that will keep the car reliable, like axles, oil pumps, water pumps, gear syncros and bearings etc

 

This is not to start a flame war...But just how I see it and my opionon.. When they dynoed the xB in June it made 180whp at 7.5psi. So figure a stock xB puts out 90whp, they got 90whp out of the turbo setup. So that is 12whp per 1 psi and at 12psi that would put the car at 234whp give or take a few. I know a lot of people understand how much whp is vs. pounds of boost, so it is easier to generalize the whp for people to see and understand what kind of power they were pushing. Now I know ZPI did one hell of a job telling us that the turbo setup would put the whp at 180, before they even dynoed it and they were dead on with the numbers. JMHO....

 

still wanto see the dyno....economies of scale......