Tim Murphy

I will be testing an intercooler upgrade to the stage one kit within the next 2 months and provide the results of my testing. I have already tested water/methanol injection on the stage one kit past 9psi and it seems to work just fine. I cannot detect any detonation at all but running a little more than 9psi max's out the stock fuel system, even with raising the fuel pressure with the FMU. I haven't had the time to record the intake temps with and without the methanol yet but I will get to it. The biggest temp reduction with water/meth takes place in the combustion chamber vs the intake so I will have to incorporate some egt readings in my testing as well. BTW, I am running the Snow-Performance injection kit.

I tried to look for the 16" fan reference but I cannot locate it. Possibly it is buried in one of the nitrous posts The kit comes standard with 4 high flow 8" fans that get mounted to the back side of the rtadiator. The 16" fan is an option for those who live in a warmer climate. I was supplying the 16" fans with the stage 2 kits and only half of the people were installing them, so this is why it is now an option.

Shane

The 16" pusher fan will be a tough one to fit in the 85-86 cars, there is barely room to fit an intercooler up front. The autos definately have little to no room up front with the trans cooler.

Tim Murphy

Hi Shane.
My "wife's car" is an auto and I was able to get the 16" pusher fan in there by re-mounting the trans cooler. It was pretty simple; I removed a spacer from the passenger side and removed one bolt from the drivers side and placed the cooler behind the factory mounting point which allows the trans cooler to be flush with the ac condenser. I used some zip ties to keep it in place along with the fan itself. I really don't have a lot of experience with the 85-86 cars so there might be other things that I am not aware of. I am moving in about a month and I am hoping to have someone bring me an 85-86 car to do an installation on.

Old & New

Hi Tim!

Please don't forget to send that little package. I'll give you a full report as soon as I get the fuel curve tweaked. Please hurry! Summer almost over! Let me know if something has changed & I need to order from Vortech...

Cameron

Great job! I admire all of the supercharger and turbocharger pioneers for the 928 community and thank them for developing alternatives for our supercars.

Re the price, try to buy a 450+ CHP car today and see what kind of investment you have to make. The 928 was always pretty near the top of the heap in terms of power in its day and now with an investment of $5 or $6k you can put it right back on top, 10-20 years later. If you look at what tuners charge others to bolt on 100 - 200 HP, the alternatives that we have had are in my opinion underpriced. Just my opinion.

Think about it. Buy a decent S4 for 15k (let's say 10 - 13k plus $2-5k for fixes/maintenance). Spend $5k on a blower and you have a invested $20k in a car that can outrun almost anything but the 6 figure supercars. And it is the entire package with looks to kill, great comfort and style, 4 corner height adjustable coilover suspension, 4 corner 4 pot aluminum brembos big even by today's standards, perfect weight distribution, aluminum suspension and body components, etc. Bargain of the century if you ask me. Then again, I might be biased!

Joe Dyer

Tom,

The "other white car" is nearing a long and frustrating chapter. While some of the work Munck did was quite ingenious, some of the attention to detail was lacking. The engine fire that occured was caused by forgetting to install injector clips, hence #8 was pushed out of the fuel rail spraying gas on the back side of the engine. The fire costs were paid by State Farm. After Marc rebuilt the engine, #8 cylinder developed a crack, not due to Munck's work, but due to Dan Benson's sleeving #8 with 4.5 liter donor he got from Anderson. The sleeve made it maybe 2000 miles before cracking. Marc got a fresh block from Germany and rebuilt the engine a second time. Right now he's adding a crankcase catch-can system to return the blow-by oil back to the crankcase. We've also reduced the PSI to about 5.5. All I ever wanted was a faster reliable street car. Dyno runs have shown 410 RWHP @ 5.5 psi. I expect to have the car in my garage in the next few weeks, stableize all systems, and enjoy autocrossing and track days again. FYI - I started this project in March, 2002.

Joe

Carl Fausett

Can't be said any better:
and how about this:
Buy a decent 78-82 Low-compression motor (8.5 or 9.0:1) for 5 to 8k (let's say 3 - 5k plus $2k for fixes/maintenance). Spend $5k on a blower and you have a invested $10k to 13k in a car that can outrun all your Mustangs and Corvettes.
Add the big brakes for $1k. Drive and smile, Drive and smile....

928ntslow

Ohhh boy Carl...you just opened the front gate to the town of Testosterone!

Carl Fausett

...that's no accident

BTW - This post has raised a few emails to me along the lines of "what about my 16v motor? Got anything for us? "

We sure do! In fact, Supercharger kits for the 16v motors were our first effort.
We have both a Stage 1 and a Stage 2 solution for K-Jet and L-Jet 16v motors.

Stage 1 is here:
http://www.928motorsports.com/parts/stage1.php

Stage 2 is here:
http://www.928motorsports.com/parts/stage2.php

Videos about them are here:
http://www.928motorsports.com/ourvideos.html


Enjoy!

Donald

Tim-
Thanks for your answer.

Shane

Well on the 85-86 cars there is an electric fan in the front already, and with the autos the cooler sits in front of that. One can either go with the original fan set up or remove it and free up quite a bit of room for an intercooler by going to the 16" Spa fan.

I was going to leave mine in place but descided that in order to properly fit the intercooler heat exchanger in there it has to go.

Carl Fausett

404 HP at the Crank on 8 psi, for $5300, complete.

Ketchmi

I think you mean at the wheels...

DFWX

I agree completely of the $$ bargain of 16V. VERY nice examples can be had of the 4.5s (78/79) for $5K, including with low ratio 5 speed (BIG plus for REAL world action on the road.)
At 8.5-1 (or the later 16v 4.7 as just over 9-1) are IDEAL for street boosting. Add a free flow exhaust, I'd suggest a water injector as they are CHEAP, and a cheap EMS to adjust fuel/air (AND A WAY TO GET RID OF THE RPM fuel starvation! limiter).
For around $12-13K and very easily you'll have a 350 hp (maybe a bit more) 3,000 pound rocket (the early 928s also the lightest weight.) With lower compression you can run higher boost, making your 4.5 relatively as large, if not larger, than a 5.0. And spare parts, even spare motors, are CHEAP for the 78-79 models. The Euro guys in Europe envy our 78s and 79s because of their advantage in boosting.
To 928 Motorsports - love your product and web site. Mine already turbocharged and building on that. Have you all ever though of making a kit minus the supercharger head? They are cheapo on ebay and a lot of the early 928 guys just don't have the $5K (if they did, they probably would not have bought an early model...)
I looked at your kit and its great, plus info and support seemed excellent. But the Mrs. could not agree to a $5K drop. Instead, I can piece meal, though, and ultimately like spend more. I think alot of early 928ers want your kit, but just aint got the $$. If they could piece meal it together, doing a bit of scrounging the more generic parts and then those neccessary specific to a 928 from you, they'd go for it - because the could.

Anyway, it is a mistake to write of the early 928s. They got low price and low compression and are lighter weight (plus a higher percentage of 5 speeds, hardtops and the better lower gear ratio - I mean are you REALLY going to go 210 miles an hour? Or is a mere 150-160 enough? Besides, if you go to 18 inch wheels, it REALLY bogs down the longer ratio latter model 928s...)

An early 928 with its low compression, low ratio, low price, and light weight that is supercharged is a true hot rodding road racer. And you don't have that much in it nor have to spend that much if you wear out the motor - another one is under $1K.
Mark

Carl Fausett

We offered the supercharger-less SC kit for 2 years and never sold one. I had the same idea as you - buy the kit, and pick up a good used SC headunit and slap it on. The Supercharger is $2000 to $2300 of the kit price anyway, and we do not make any money on it... so it was fine with us.

Offering it without the SC Headunit prought us down into the $2400 range if I recall, and it seemed to cheapen the product. I think folks felt that, for only $2400 it can't be aby good....

Anyway, they did not sell, so we removed it from our catalogs.

If a guy was interested - alll he would have to do is call us. We do special orders.

Side Note - we sell more SC kits sans supercharger for the international guys - they want to reduce their import tarrifs, so they buy the kit without the blower and purchase a blower locally instead.