Anyone with a Stage 3 or PES T28 kit
05-27-2003, 12:55 PM
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Anyone with a Stage 3 or PES T28 kit
looking to upgrade their injectors. I have a set of bosch 42 lbs that I need to get rid of. You can email me if you would like to know more. These would also work for someone doing a T3/T4 setup.
05-27-2003, 01:31 PM
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How would these injectors be better than the ones supplied with the kits?
I have a set of 44lb bosch injectors sitting around and I'm wondering how these could be better than the ones supplied with the kits? I would probably have to get an adjustable fpr to lower the pressure a little but how would these help compared to the ones PES supplies?
05-27-2003, 03:07 PM
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Depends on what injectors you have.
PES uses a bosch 360cc at 3 bar injector while these are about 450-460cc at 3 bar. The other ones they use are RC 440's but are not really true 440cc's at 3 bar since they tend to run a little small.
When you go with a larger injector with a lower fuel pressure you get a better amount of fuel during high rpms compared to a smaller injector with a higher rail pressure. This would be about the same thing people do when replacing the stock 240-270cc injectors running at 5 bar with 310-330cc injectors and turn the rail pressure down to just under 4 bar so that they get better range of fuel thru the rpms.
BTW what color are the 44 lbs bosch injectors? Sounds like they are exactly the same as the bosch injectors I have which are green tops, they are sold as 42 lbs but really put out a little more then that.
When you go with a larger injector with a lower fuel pressure you get a better amount of fuel during high rpms compared to a smaller injector with a higher rail pressure. This would be about the same thing people do when replacing the stock 240-270cc injectors running at 5 bar with 310-330cc injectors and turn the rail pressure down to just under 4 bar so that they get better range of fuel thru the rpms.
BTW what color are the 44 lbs bosch injectors? Sounds like they are exactly the same as the bosch injectors I have which are green tops, they are sold as 42 lbs but really put out a little more then that.
05-27-2003, 03:15 PM
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Yah mine are bosch green tops...
They used to be John Baas's (xr4tic) according to the flow test sheet and I bought them through somebody else. I was planning on using them as secondary injectors with a rebic but that plan fell through. What do you recomend I do? stick with the injectors PES supplies and sell these or get an adjustable FPR and play around with the bosch 440s?
05-27-2003, 03:59 PM
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If you plan to install the PES kit, I would say
install the kit as it and make sure the car runs good first. Then you can upgrade to the green tops and turn down the FPR. I bought these green tops from Tony at PES while he was out here, I guess they were going to tune a car with the green tops but that did not happen.
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05-27-2003, 05:06 PM
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If it is true that they are 450cc (42.851 lbs) at 3 bar like john bass says
it would put them right around 520cc(49.48 lbs) at 4 bar.
Mat do you want me to give you a call at the shop tomorrow?
Mat do you want me to give you a call at the shop tomorrow?
