Sprintex Supercharger

[tomcat]

Torque converter & valve body upgrade here.

http://www.automatictransmission.com.au/

 

[FDNewbie]

Awesome. Thanks for the info.

What about for Stage 1-3? How do you manage all the extra power (up to double the stock power) on the stock ECU and fuel system?

Also, is anyone on the forum running this turbo kit? I did a search and didn't find much feedback...

So if anyone was wondering, I had a nice talk w/ baktasht yesterday, and he was kind enough to answer these questions.

Stage 1-3 is the bolt-on turbo kit using factory ECU, IC, etc, and I believe it utilizes an upgraded fuel pump. But otherwise the fuel system is stock.

baktasht was telling me that the stock ECU (95-97) will compensate as-is for the additional air-flow to still provide 1.5-2 times the power of stock, while still running under 85% injector duty cycle (as that's the max the stock ECU will allow). Which isn't bad at all.

I'd prob. get my stock injectors cleaned, balanced and calibrated (for under $30/injector) from these guys: http://www.rceng.com/Fuel-Injector-Cleaning-P43C0.aspx (or if the injectors are relatively inexpensive new, just get new ones altogether), and swap out to a Supra TT (Denso) fuel pump. And I should be good.

So overall, as advertised, the Stage 3 kit would make up to double the factory power levels (around 250rwhp), which is still a LOT more power than the Sprintex kit. Plus if I go with the Stage 3 kit and later find that I still want more power (which is very likely; I'd say the truck needs at least 300rwhp to really move), I already have the setup; nothing gets junked. No money is lost. I can just upgrade to the Stage 4-5 kit (fuel system & ECU). And with the money I saved off the Sprintex kit (around $3K), I can put that toward doing the head gasket and any other maintenance items/seals/reliability work at the time of install (which is the smart thing to do).

What do you guys think? Sounds like a no-brainer to me...

 

[scottryana]

Yep that's what I am doing/did

 

[FDNewbie]

What stage? And what kinda preventative/preparatory maintenance are you doing?

 

[93Siro]

So has anyone actually have any first hand experince with this kit? Bullet does not respond to emails.

 

[MickeyB]

Anybody try these kits out from Bullet superchargers I have been emailing them about pricing and general questions. This would be going on a 1994 Landcruiser so only OBD 1. They sent back the brochure and wanted me take a picture of my AFM. Overall comms has been pretty poor, I brought up my concerns about OBD1 detonation issues. They really didn’t seem to care about answering them. Anyhow here is the brochure they sent me.

 

[scottryana]

Australia doesn't have OBDI. Their trucks use different fueling. I can almost 100% guarantee you will have issues with an OBDI truck.

Anybody try these kits out from Bullet superchargers I have been emailing them about pricing and general questions. This would be going on a 1994 Landcruiser so only OBD 1. They sent back the brochure and wanted me take a picture of my AFM. Overall comms has been pretty poor, I brought up my concerns about OBD1 detonation issues. They really didn’t seem to care about answering them. Anyhow here is the brochure they sent me.

View attachment 2425552

 

[dallen341]

So has anyone actually have any first hand experince with this kit? Bullet does not respond to emails.

[/QUOTE]
Ya that makes me want to do business with them!

 

[MickeyB]

Ya that makes me want to do business with them!
[/QUOTE]
They respond it’s just really slow and short.

 

[built105]

So I FINALLY got ahold of the Sprintex guys. Here's what I got...

1) The website says "Kit can be installed using the factory fuel injectors and fuel pump" but the site also says "This kit includes 2 extra fuel injectors which provide the additional fuel required only under high output conditions such as hill climbing or overtaking also includes injector wiring loom and diagram."

Explanation: You retain the original injectors and fuel pump, but have to add 2 extra injectors for when under sig load/max power. Given the age of the 80, they recommend a new OEM or similar fuel pump, but it will work with the stocker as-is.

2) The XEDE processor is indeed a "piggy-back" computer that installs on and takes control of the factory ECU, thereby allowing for continued OEM diagnostics, OBD-II port functionality, etc. The XEDE also controls the OEM fuel system in addition to the 2 newly added injectors.

I did a quick search online, and it looks like there's a fair amount of local (US) XEDE support, especially in the Miata community (which is a GOOD thing, cuz they have a HUGE community).

3) The site also recommends an "Automatic Transmission upgrade." This is in reference to the 100 series/later V8 models. Not an issue on the 80 trans.

4) I expressed interest in running the supercharger with a top-mount intercooler (vs the water-to-air IC setup they provide). He strongly advised me against it, given there's very little distance between the core and top mount IC, plus placement toward the exhaust side of the motor, all contributing to heatsoak. He didn't feel this would be efficient or helpful.

5) I asked about a Rotrex supercharger unit instead of the Sprintex. Short answer is no. The Rotrex is a centrifugal supercharger, so it provides very little low-end, which is why they use it on their smaller/sport compact/light vehicles. For a heavy application like our 80s, the Sprintex is the way to go, since it'll offer significant low-end power and torque.

6) Last but not least, exhaust. They have a full exhaust (headers to catback) for $1695 Bullet Cars and 4WD - Australia’s Leading Supercharger Specialist - http://www.bulletcars.com/parts/engine-parts/bullet-ultimate-exhaust.html#bulletult1fzfe. I'm not sure if it would be bolt-on on a US truck, but I'd imagine so. That's a pretty darn good price for something that's already ceramic coated (compared to $2400 for EMS Powered's header + exhaust system, which doesn't include ceramic coating): http://www.emspowered.com/storefront/index.php?main_page=index&cPath=61_119_120_121.

So I just may take the plunge on this one...

Include heatshield. Ceramic coated headers to exhaust $1600

Hey mate I recently got my hands on one of these, I’ve put it in and it’s running great! Except it’s running very lean as the 2 additional injectors don’t seem to be working. I’m not sure where I went wrong but I’d assume it’d be the wiring. Was there any chance I could get a copy of the wiring diagrams. I’m putting it into my landcruiser 100 series, cheers

 

[jaymar]

Hey mate I recently got my hands on one of these, I’ve put it in and it’s running great! Except it’s running very lean as the 2 additional injectors don’t seem to be working. I’m not sure where I went wrong but I’d assume it’d be the wiring. Was there any chance I could get a copy of the wiring diagrams. I’m putting it into my landcruiser 100 series, cheers

Any update on this?

 

[jaymar]

Anyone have any experience with the Sprintex / Bullet S/C?

 

[bubear]

Just ran across ad for 97 LX450 w two screw super charger. Uses some very odd fuel mixtures as well. Out of my area of expertise but may help those thinking about this set up

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