Fuel Pump Upgrade In A Series 2

[darrinspencer]

I removed the factory fuel pump from my series 2 and tried to fit a R34 GTR factory pump.

I had a bit of a search and all threads on pump upgrades are for series 1's. They have a different mounting cradle compared to the series 2

Here is a thread with pic's of a series 1 cradle

http://www.skylinesaustralia.com/forums/t176653.html

Below is a pic of the series 2 craddle. The factory pump is very small, approx half the size of the GTR pump in diameter and length.

The facory series 2 pump mounts inside the plastic box, which works like a swirl pot to prevent stavation.

To get the GTR pump to fit, the lid would have to go and a bit of cutting need to the base to get the pump to fit partly in to hold it in place. I can get the series 2 pick up sock to fit the GTR pump and sit at the bottom of the craddle so it should work.

Can anyone see a problem with removing the lid altogether. Could maybe end up with some fuel starvation on a 1/4 tank around corners?

[darrinspencer]

Here is a pic of a R32 GTR pump and cradle.

I would have to end up doing something similar

[bernardshorty]

hey mate i have a spare s1 pump cradle if ya get stuck or bugger ya old one trying to mod it .the thing i have found with my s1 is when the bigger pump was fitted the cradle wouldnt clip in properly and would fall out when ya hit a big bump.i had to put a right angle fitting on the outlet to stop the fuel hose from hitting the side of the tank and not allowing the cradle to clip in . hope this helps mate cheers bernard.

[unique1]

hey darrin in that other thread with the s1 cradle pics i posted im only showing the bottom half of the cradle, usually its got a section that goes around the pump as well but it wont fit when using bigger pumps like 044 and 040, but it definately looks nuthin like your s2 one im pretty sure of that.

[chook]

Darrin, could you tell me the diameter and length of the S2 pump please. Im also after an upgrade for my S2, probably go the SARD, which is 122mm x 38mm. Probably not a bolt in going off you pics.

Also, what size pump would people recommend 130L, 165L, 200L ? and is a regulator neccesary for a stocko engine ?

thanks

Edited November 4, 2007 by chook

[darrinspencer]

Attached are saome pic's

The stagea pump is 38mm dia and 90mm long (mainbody, not including the plastic plug bit)

R34 GTR pump is 55mm dia and 105mm long

As you can see there is a big size difference. I can mount the GTR pump with sock in the craddle, but no hope of fitting the lid on

Does the series 1 stagea pump just clip to the bottom of the tank with no anti starvation/swirl baffles around it?

If it does, then the series 2 lid probably is not that important.

Chook, I did see somewhere (maybe on nengun or greenline site), the Sard bumps are Bosch rebadged.

Answer to your question in regards to which flow rate, get a pump to suit your power goal. A pump that flows way too much can have a negative effect, as the excess fuel gets returned to tank and gets heated by the engine bay in the process

[chook]

darrin, couldnt find any info stating that the Sards were rebadged, you might have thought this because Greenline uses a Bosch photo to represent both Bosch and Sard pumps, but a Sard pump looks different to the photo, and ive also heard a lot quieter than bosch.

Anyway, the R34 Gtt pump flows around 140 l/min, so i assume the S2 stagea is similar, so a good upgrade would be around 165 I feel.

[chook]

darrin, couldnt find any info stating that the Sards were rebadged, you might have thought this because Greenline uses a Bosch photo to represent both Bosch and Sard pumps, but a Sard pump looks different to the photo, and ive also heard a lot quieter than bosch.

Anyway, the R34 Gtt pump flows around 140 l/min, so i assume the S2 stagea is similar, so a good upgrade would be around 165 I feel. Delivered for around $220 on Nengun.

[chook]

Got the SARD 165L/min from NENGUN, easiest install ever, pump is slightly longer but same diameter, but fitted perfectly into box, also same wiring plug ! Only hiccup was to swap the factory filter sock over. Looked like the pumps were made by same company, no noise, very pleased.

Edited January 3, 2008 by chook

[darrinspencer]

I actually got the GTR pump to fit yesterday and got the car running today with new injectors and power FC

I had to hack some of the lid and box to get the pump in. Does not fit totally like the factory pump but will still work.

Hopefully get a tune in a week or two.

[wolverine]

i think the sard pumps are denso.

[chook]

i think the sard pumps are denso.

Yeah, instructions said a direct fit for Toyotas, Stagea S2 pumps may also be Denso, as the pump, plug were almost identical.