4BD1T with Holset Turbo.

[Dougal]

I didn't realise just how compact those garrett turbos are. Scroll to page 2 and 3 for the turbo pics, but the whole conversion is well worth reading.

67 Ford F100 with Isuzu 4BD1T - Cummins 4BT Forums (http://www.4btswaps.com/forum/showthread.php't=3300)

[isuzurover]

Interesting conversion.

I used to own a Rajay turbo that was used as part of a 2.25P turbo kit. It was HUGE - never fitted it... Was supposed to kick in around 1800 rpm.

[Bush65]

I've spent a fair bit of time looking for a turbo to upgrade the garrett on my 4BD1-T.

I couldn't find a garrett with a compressor that had suitable efficiency at the pressure ratio I was seeking.

The HY35 was high on my list, based on the experience of those using them with the 4BT. I had started making inquiries about purchasing one with Aus dealers. But I remain concerned about the compressor being close to the surge line.

Hopefully I have found a suitable turbo now, thanks to Dougal.;)

[Dougal]

I've spent a fair bit of time looking for a turbo to upgrade the garrett on my 4BD1-T.

I couldn't find a garrett with a compressor that had suitable efficiency at the pressure ratio I was seeking.

The HY35 was high on my list, based on the experience of those using them with the 4BT. I had started making inquiries about purchasing one with Aus dealers. But I remain concerned about the compressor being close to the surge line.

Hopefully I have found a suitable turbo now, thanks to Dougal.;)

When you get that sucker fitted, I'll be heading over for a test drive.:D

[isuzurover]

Hopefully I have found a suitable turbo now, thanks to Dougal.;)

Come on, spill the beans, what is it?

I thought you were planning on fitting a disco potato?

[Dougal]

Come on, spill the beans, what is it?

I thought you were planning on fitting a disco potato?

Nothing that Garrett make, but I'll let John roll back the curtain when he's ready.:)

[Bush65]

Come on, spill the beans, what is it?

I thought you were planning on fitting a disco potato?
As I said above, I have been looking about for a while and from the compressor maps I could find, no garrett looked to have satisfactory efficiency at the pressure ratio I'm aiming for.

The holsets seem much better in this respect and I was getting close to laying out for a HY35, when Dougal bought another possibility to my attention.

Someone in the USA had a borgwarner R2S turbo from a Navistar International, 4.5 litre, maxxforce 5, V6 diesel) that he might sell. Checking on this, it should be great for what I want and at the price I reconned it will be worth while. It is definitely not bolt on and will need some fabrication to install. It should be interesting.

I don't mind this. I was planning to make a tube exhaust manifold to utilise the exhaust pressure pulses in any case. My project is running further behind than I would like, so I will probably make an adapter from the stock manifold for the time being.

Having said this, I don't have the turbo yet, only photos.

I used paypal to make the payment last monday. Later on paypal sent me an email saying they suspected a 3rd party had used my paypal account and they imposed limited access on my account. I checked my bank and the payment had been debited, so I felt relieved that it had gone through to the seller. I proceeded to have the limited access lifted but I could not get through one of their forms because VISA had given me a new card number and I didn't know the old one.

Today, paypal sent an email that they had canceled the payment to the seller. I spent an hour on the phone to paypal trying to sort it. I had previously faxed them documentation to prove my details, but they could do nothing about the old account number. After more time with the bank I finally got the access limit lifted and sent off another payment.

I just hope the seller hasn't decided to back out after all this. I sent 2 emails to him today, but haven't had a reply - have to allow for time differences.

After this drama, I am reluctant to say much more until it is in my hands. But I have given a couple of clues for the curious.

[Pedro_The_Swift]

Regulated 2-stage (R2S) turbocharging | BorgWarner Turbo & Emissions Systems (http://www.turbos.bwauto.com/products/r2s.aspx)

interesting reading,,,

[isuzurover]

Thanks John - will be interesting to see how it works - looks pretty large!!!

Hope all goes well with the sale!!!!! (from now on anyway!)

[Dougal]

Regulated 2-stage (R2S) turbocharging | BorgWarner Turbo & Emissions Systems (http://www.turbos.bwauto.com/products/r2s.aspx)

interesting reading,,,

Factory compounds, should be a very sweet setup.

[Bush65]

Thanks John - will be interesting to see how it works - looks pretty large!!!

Hope all goes well with the sale!!!!! (from now on anyway!)
Seller contacted me this morning. He has the money in his paypal account and will send the turbo mid next week. :D

Here are some tease pics:

[Pedro_The_Swift]

looks new:D:cool:

[isuzurover]

Looks awesome! :twisted:

Plumbing that in will be fun!

[Bush65]

Good news! The turbo has been sent. Hopefully I will get my hands on it by this time next week. :)

[Larns]

i think i'm going green!!!

[Bush65]

When I arrived home from work today, I found the turbo waiting for me. :)

[mitch]

the fun begins:twisted:

[rick130]

I only just discovered this thread, Bloody hell John, you're going to have fun with that ! :cool:

[Dougal]

When I arrived home from work today, I found the turbo waiting for me. :)

I hope it works out. I had a really really hard time turning down that offer. Two devils on one shoulder chanting "do it, do it" and the wife on the other telling me I'm not allowed to buy any more turbos.:D