Down and out in 2008

[Sandeep]

I checked the specs on the pump and it only flows 160 lph at 45 psi, and at 20 psi boost it would flow less. I am not sure why I chose this pump in the first place now.

The aluminum injector holders have a -6an fitting, so it looks like I'll be running new lines through the tunnel again. What size do you suggest, based on my system ? Looking to support 500hp.

Sandeep

[Wally]

Hey Sandeep,

I would (and have) just get a Bosch 044 pump and be done with it. Less noise too, just ask Humble as he runs one too. It supports more than 500 hp
That pump also has a 12mm (1/2 inch) inlet size, so now you also know what the feed line internal diameter has to be.
High pressure line can be 8mm. What this means in AN size, I dunno, but you will probably figure it out
I would get a high pressure filter and mount it on the pressure side with 8mm fittings, like porsche does also.

Walter

[owdlvr]

Originally Posted by Wally

Hey Sandeep,

I would (and have) just get a Bosch 044 pump and be done with it.

x2 on the Bosch 044.

That pump also has a 12mm (1/2 inch) inlet size, so now you also know what the feed line internal diameter has to be.
High pressure line can be 8mm. What this means in AN size, I dunno, but you will probably figure it out
I would get a high pressure filter and mount it on the pressure side with 8mm fittings, like porsche does also.

Walter

-6 is the closest AN size to 8mm (it's technically 3/8", which is roughly 9.5mm). I would run -6 line and not worry about it. Russell makes an aluminum fuel line that can be combined with their aluminum fuel line adapters for the easiest line-to-AN combo. No flaring tool is required. Part number 639480 for the natural finish line (also available in black, red and blue) and 639210 for an example of the fitting end (also available in swivel end as well as black/silver instead of red/blue).

034Motorsports has tested the 044 and found it does 265Lt/Hr @ 55lbs and 255Lt/Hr @ 75lbs.

Inlet is 18x1.5mm, outlet is M12.

-Dave

[Humble]

I've got the 044 bosch pump on the race car @ 50psi on 750cc injectors and it's both quiet and capable. I've got a -8 feed line from the tank to the pump, -6 high pressure out to a filter, then -6 to the motor. I'm also running a -6 return back to the tank to make things easy.

You could probably get away with using -8 from tank to swirl pot, -8 from swirl pot to pump, and then -6 for the rest of the system like I did with out issue. It's only when you get into truly ridiculous hp numbers and 1000cc injectors that you will need anything more than a -6 feed line.

[70Turbobug]

What size do you suggest, based on my system ? Looking to support 500hp.

I would run an -6 AN fuel pressure line and -8AN from the tank to the swirlpot and to the pump,as mentioned above.You will need more pressure and volume than what you have now.If you run 3 bar of fuel pressure and 1.5bar of boost,you will need 4.5 bar minimum fuel pressure at the flow rate your injectors will be flowing. A good fuel pump that is also very reasonable is the walbro 392,and it is E85 compatitable. http://www.fiveomotorsport.com/fuel-pumps/?itemid=12

[Wally]

Originally Posted by 70Turbobug

A good fuel pump that is also very reasonable is the walbro 392,..

The disadvantage of Wallbro's is they seem to fail sometimes and are more noisy.
That was my reason to look for a 044 (which also seem to flow a tad bit more at higher pressure gradients).
But the Wallbro costs less... (and now you know why)

[70Turbobug]

Ok,that´s the first time I´ve heard anything negative about the walbro.

[Sandeep]

Some more updates while I am waiting for the new fuel pump / regulator / filter.

The rear end is complete and on the ground















Now to tackle the front beam and rebuild that. Hope to have it as a roller in less than a month

Sandeep

[effvee]

[QUOTE=Sandeep;75850]Some more updates while I am waiting for the new fuel pump / regulator / filter.

The rear end is complete and on the ground



Very nice work. Question, I see a tab attached to the chassis snubber mount, it has made some scratches on your otter CV, what is it for?

Lastly, please keep us updated as to your choice of coil overs and how well they respond.

[NO_H2O]

Looks like you have your Tilton pedals in too. Moving along nicely.

[Sandeep]

Well, time for an update seeing as I have 2 weeks off for the Holidays and need to make a big push to have this bug on the road for spring 2011.

Dash before: (needed to install a kickin stereo in high school )




Tried to cover it up and make it look acceptable




2 days of cutting / fitting / welding ... thanks for the donor dash Pete !




Cleaning up the "interior oil cooler experiment" as I now have an RX7 oil cooler up front

[Sandeep]

Re did the fuel system up front thanks to comments from the group ...




-8 line from the fuel tank to Aeromotive canister filter (100 micron), and then -8 to the swirl tank, -8 feed to the Bosch 044 fuel pump. Still need to run a -6 line from pump to regulator in the back, and then a -6 return line to swirl pot.



Front end complete except for plumbing up the brake / clutch hydraulics. The lines have been run, just need to terminate the fittings. Lanner is working on the new splindles, current ones are temporary so I can move the chassis around.

[Sandeep]

Need to spend a few days fixing the rust in the rear area before I can place the body on the pan, and work on the heater channels.






Dash display coming along nicely.





I have all of the parts to put the long block together, then need to build a horizontal cooling system .... NEED TO GET THIS ON THE ROAD FOR SPRING 2011 !!!

Thats it for now, more progress as it happens.

Sandeep

[CLKWRK]

Looks great, I especially like the display.
Can't wait to see it (and maybe get a ride in it)
Bry

[chug_A_bug]

looks great Sandeep... hope to See it on the road this Summer

Chris.