Engine Dyno Advice Please

[PaulTWinterton]

As some of you know, I restored a 74tii engine last winter.

This winter I want to dyno-test it. I have spoken with a local shop that has a test stand and offers the service for $400.  Unfortunately it is only set up to do domestic engines.

 

The shop has said that if I can fabricate a drive from the flywheel, a bellhousing, and a tii fuel pump or alternative, the rest is easy.

 

What I'm asking for here is any experience, pitfalls, pre-fabricated parts, and other opinions to help make this endeavor a reality.

 

On a side note:  I'm going to visit them.  It turns out they are right next door to my favorite DIY media-blasting company, Langley U-blast.  Awesome.  I'll have to look in my stash for any parts that need cleaning.

 

Cheers,  Paul 

[Fatherof3]

Be patience and chassis dyno it later?

 

I know I'm not really any help

 

[jimk]

Bell housings on the Gegrat 265 that was use on the S14 will bolt up exactly and were removable from the gearbox.  Source one from a trashed transmission.

On the early E30 that used a two fuel pump systems, the in-tank pump was a 2 bar pump, the same pressure a Tii uses.  They are available a salvage yards cheap.  I have several known good ones, collected for failed ideas.  These are bayonet tank mounts.  Source an old 2002 tank with a return nozzle or add a nozzle to an early tank.

Edit: I just looked and the early 2 bar pump has a return nozzle on the pump.

 

 

Edited September 18, 2017 by jimk

[markmac]

First off great looking motor from that on pic....not sure I have any really good advice for you other than I know that there can be a lot of variation in the data based on the dyno and who is running the dyno.  I ended up having to have a dyno header made up for mine that had the o2 sensors in it etc.,  This is a very elaborate dyno as you can tell with alot of time to set up, the dry sump added a bunch of time to that as well.  Since I paid a wheel barrow (small swimming pool) of cash to rebuild my motor I was only charged a nominal fee, pretty sure it would be in the thousands to do it if you were not a customer.  You do have to find someone that is familiar with your tii engine because there is likely to be some "fiddling" with it while they are running it in. At the end of the day your engine should be completely run in and tuned perfectly (or as perfectly as possible).

 

 

[Preyupy]

Paul,

The trick is the adaptor from the crank to the dyno.  If you want to bring it down here I have a engine dyno shop I use all the time and I have all of the adaptors to hook it up.   It is more expensive (I think they are about $600/day now)  and I am sure we can get it mounted, dyno'ed and off in 1 day easy. 

Byron

[markmac]

2 minutes ago, Preyupy said:

Paul,

The trick is the adaptor from the crank to the dyno.  If you want to bring it down here I have a engine dyno shop I use all the time and I have all of the adaptors to hook it up.   It is more expensive (I think they are about $600/day now)  and I am sure we can get it mounted, dyno'ed and off in 1 day easy. 

Byron

You should pack your engine up and head that way now, that is a smokin deal + Byron had the "fiddlin" capabilities with your tii motor you will probably need some of.

[joysterm]

Paul, give Patrick a call (Midnight MS). He will likely have an answer for you as he just  had one done recently

[Simeon]

What are you trying to get out of it? A full dyno tune or just the ability to run the engine in, look for leaks etc?

 

you could build a basic stand to run the engine on yourself for a lot less than $600. 

[PaulTWinterton]

1 hour ago, Preyupy said:

 If you want to bring it down here I have a engine dyno shop I use all the time and I have all of the adaptors to hook it up.   It is more expensive (I think they are about $600/day now)  and I am sure we can get it mounted, dyno'ed and off in 1 day easy. 

 

That is a fantastic offer and makes me giddy.  I would love to do that. Let me ponder that and determine the month when I'd be able.  I'll be in touch.

 

27 minutes ago, Simeon said:

What are you trying to get out of it? A full dyno tune or just the ability to run the engine in, look for leaks etc?

 

I've come to the conclusion that I will not be keeping this engine.  My Inka engine has lots of life still in it and the 74 engine is just sitting, hermetically sealed in plastic.  What better to offer than a dyno-tested - 9.5:1 -  broken-in - restored - tii engine with all the trimmings.  That's my thought anyway.

[John76]

Paul,

Send your Tii motor to me. I will pop it into my car, drive it for a few months, and then send it back to you with my "seat of the pants" report.....all for free!

John