Bosch Red Tops - Rolling Road - More Injector stuff

[debaron]

Ok, I've finally had it with the rough running and I'm going to order some new injectors. According to the 'How To Powertune Rover V8's' book, '25% of well used disc-style Injectors will be found to be faulty' so they're all headed for the bin!

As the 'Green Band' originals are now VERY hard to find new, Bosch Red Tops which flow around 30 lb an hour seem to be the general accepted choice.

I plan to have them fitted locally (Bristol) then get the car RR'd so it can all be fine tuned and the ECU remapped as apparently the spray pattern and flow rates will differ between the old and new injectors.

- Any thoughts?

- Does anyone know a good RR and TVR chipper/mapper near Bristol?


Ideally I'd like to drive the car to Austec on the new injectors and get it RR'd there but is there going to be a problem with this? Will the car be fairly driveable and safe too? Will any damage occur to the engine?

Should I consider any other options?


Thanks

Ryan

[GreenV8S]

Who are you planning to get to tune it? Whoever it is, should be able to supply a chip with a map that will be good enough to drive the car there, once you've told them the flow rate of your new injectors. Your other option would be to drive there and then change the injectors on site, but that means you're spending more time fiddling rather than getting the engine set up.

[debaron]

Well i'd like to get it done as locally to Bristol as poss because the guy fitting the Injectors doesn't have any access to tuning/chipping.

ie, the new ones go in and then I'll have to drive the car home/to a RR on the existing map

[GreenV8S]

debaron said:

ie, the new ones go in and then I'll have to drive the car home/to a RR on the existing map

The point I'm trying to make is that as well as the rolling road you need somebody who will map the ECU for you. Finding somebody to do that is a lot harder than finding a rolling road, because there are only a handful of people in the country who can map that ECU.

Once you've decided who is going to map it for you, they should be able to post a chip out to you that will be about right with the new injectors and that should be good enough to drive it to the rolling road where they will set it up properly for you.

[rev-erend]

Red Tops - strange choice but I presume you are doing further tuning later (super charger ?)

I thought the originals were 22lbs injectors and I've fitted Bosch Pink tops to mine (22 lbs) as they are the closest match to the original. No reason why red tops could not be fitted but just fitting them would lead to a very rich mixture all across the rev range and would not be healthy to drive for more that a few miles like that .. bore wash being one bad side effect.

The only 2 companies that I know of that have the knowledge to tune those injectors would be :

1) Mark Adams probably to be found at Austec

2) TVR Power (Midlands)

I do know Mark can select a off the shelf replacement off the shelf from his extensive library and can fine tune it when you arrive at his location not sure if TVR power offer the same service.

[Bodmin]

Get down to a local scrap yard & relieve two Vectra 1.8/2.0 of their injectors & save yourself approx £45+vat each on the Red Tops. These are very reliable units but as a precaution it is worth having them ultrasound cleaned before fitting.

The Vectra injectors are Bosch units that flow slightly higher than the standard units & are perfectly capable of handling power outputs over 300bhp in the RV8.

Bodders

[Pasco]

I have a set of Red tops surplus to requirements 30lb approx 2k usage.

Pm me if interested.... first come first served

[Steve_T]

Why don't you drive it to Austec and get them to swap the injectors for you and then tune it?