Wrench Monkey

Thanks for the pics, I am a huge fan of connected cylinders.... keeps them from wanting to move around.

When it comes to turbo's or anything fabricated I stay far away from the e-bay specials..... I like Turbonetics and Precision myself.


Since all the Tubo motors were 2.5 to start with a 3.0 block would I just need to get a good 3.0 donor motor???? Or get an 89 or newer car with the better block???

Tom M'Guinn

Check out the 3 Liter Turbo Registry sticky at the top of this forum. It lists the configurations for all the big motors folks here have built or are building. My motor is pretty cookie-cutter as 3L's go -- 104mm block, 2.7 1989 head, Andial/Mahle turbo pistons (one-over), Vitesse engine management and turbo.

d993

How's your Vitesse turbo holding up? A friend of mine bought the stg 3 kit and turbo only lasted about 400 miles.

RolexNJ

Interesting thread that you started. There are several ones about about a car called Doom built by Norwood. Those of us who have been around for a while, know about the big HP this car made, and how it lasted, or rather how short lived it was. Anyway, if you are thinking about building a 'streetable' 951 that is fast and you don't mind doing all the work yourself, and perhaps doing rebuids so often, the fastest one on here is a 2.5L (he ran high boost) by Special Tool. You can see is dyno chart and the exact mods by checking out the link below. As you know, there are various ways to get to high BHP, by PSI or CCs, and either strategy can be argued from several points of view. Personally speaking, I am a 3.0L guy myself and this is the only way I would go. And oh, be prepared to have some cash for your endeavor, it won't be cheap.



Special Tool thread -----> Click Here

Wrench Monkey

Thanks for the link, I was doing some reading on him, looks like a sick car I will check the link out tomorrow, at work now, headed home.

I don't mind freshing up motors from time to time..... as long as it is not complete rebuilts (IE blown up engines).

porshhhh951

Very strange. I've got 5k on mine and its running very very strong.

Josh B

First of all welcome to Rennlist! Thanks for searching previous posts - there is a lot of info out there. Probably so much you weren't able to read it all!

Not sure where you are seeing 500HP 2V 951s unless you are talking at the crank and even then it is a short list. These are def not big HP cars - you should know that right up front in case you want to go a different route. It takes a lot of cubic $$ just in hardware assuming you are doing the labor to seriously mod these cars and then you still have to get all the suspension parts and brake parts etc up to par. The transmissions start to have issues with higher HP as well. Even the newest 944 turbo is still 20 years old.

Here is a thread with the top HP numbers. I hate to even post this as I feel that these cars were meant to be driven and so what really matters is the combo of weight/power and handling - not just dyno numbers.

https://rennlist.com/forums/944-turb...-10-hp-tq.html

porshhhh951

Exactly. Lots of people talk about big power but, yet 400hp at this point will still get you on the top ten list. These are NOT high hp cars.

fast951

Wrench Monkey, Read as much as you can, come up with a plan and set goals for your project. There is lots of information on this (and other boards), but you must filter through it and come up with your own conclusion.
Once you have a clear goal, talk to the various vendors, and pick the one that provides the best solution for your project. Unless you like to tinker and do things on your own, get all the parts you need to work as a system. It will pay off in the long term.

A big part of any project is the installation. You can give the best product to a unqualified installer, and 9 out of 10 times, they will mess it up, then blame the products.

As a example, if your engine was on fire, you must replace ALL the hoses, including the turbo oil feed hose. While at it it's a fantastic idea if you change the oil. If you decide to save some $, picking someone to work on your car because they are inexpensive will cost you more in the long run. Keeping the parts clean and protected from the element goes a long way. So if you install a turbo don't leave it open (unprotected where junk can get inside of it) while the car sits outside for a extended period. Dirt does not mix well with mechanical components. Of course, when it fails and it will, you can always blame it on the product. The above scenario does happen and it did happen!

One thing that helps you in filtering the so many opinions is to do a search on posts made by the by the user in question. It doesn't take long to figure out who is who on the list.

Again, set a goal, research the options, proceed with proper installation and you will be happy with the results. This list is very valuable, many people with good technical knowledge, they will be glad to help you. Of course, you will have to filter through some BS, but it doesn't take long to figure out who has done it successfully vs. who's just posting.

BTW. Once you cross over the 400rwhp or 400rwtq, the 951 becomes difficult to drive and to control. Building a fast track car is different from building a hi HP street car. Building a well mannered car, with good power output becomes more difficult as the HP/TQ numbers go up..
Heat is your enemy, so factor in a way to control oil temps, coolant temps and intake temps. Look at it as a system, it all must work together to yield good results.

Good luck with your project.

d993

John,
My friend had your kit installed at Motor Werks Racing in Alpharetta (excellent reputation). I've sent several people there, never a complaint.

He did have the fire damage you mention, but ALL parts were replaced BEFORE installation of the kit, and he nearly got laughed out of the shop when asked if that was a ssautochrome or xspower eBay turbocharger ......no offense or disrespect, but I'm just curious; where are your turbochargers made?

Now I don't know ALL the details on why this happened, there is obviously a good reason..... (seals blew, smoked like crazy, although he never ran more than 14psi)

Anyone else had a similar experience?.....from what I recall (and please correct me if I'm wrong) several people complained about excessive oil consumption with your turbos, and this was a while back.....maybe just the 1st gen turbos?


(nutswingers can fire away at any time, I'm just trying to figure this out. Not my car, not my problem anyway, but still curious about it all)

JohnKoaWood

Maybe his setup failed because johns kits prefer to be run at over 18 PSI all day long?

Not hatin, just playin...

333pg333

.....

JohnKoaWood

I thought there were also some 5.7 - 7L engines running in these cars as well??

333pg333

+ I would agree that 400whp would be plenty in one of these cars on the road.
I probably have about 300whp (aussie hp) w E85 and break traction with 285/18 Rspec rubber.

Chris White

ALL new turbos are pretty fussy about initial start up....if you don't do it right you will have issues.