This one is a 87 coupe I picked up for $450 which had a duke. I drove it to work for about a year and decided I liked the lightweight 4 cylinder but it needed more power. I had a Quad4 that I bought a long time ago but never used it 'cause I did the 4.9L instead. I priced rebuilding it but found a guy on the quad4forums.com that builds them and he had a W41 block he rebuilt and wanted less for it than I could do mine for. So I bought that and had him put the HO cams in it. The power comes on sooner and is more usable with the 180hp HO cams over the 190hp W41 cams.
Here's the car
Here's the motor as it was when shipped
I trimmed the IDI cover. (that's not the exhaust manifold I will be using (it's cracked) looks nice but the HO manifold is better flowing)
The Quad4's Getrag has a different style fitting for the slave cylinder. It uses a pin to hold it in. I found Summit sells a Clutch Hose Fitting; Universal Clutch Fitting; -4AN it comes with two of them. http://www.summitracing.com/parts/RUS-641001/
You can see one installed, I'll be swapping it out for the one I modified. I cut up a old steel Fiero slave cylinder I had and welded the female end I needed to the fitting I bought and painted it black.
Here's a couple of photos of the mounts as I was welding them up. Removed the exhaust hump to make room for AC.
And now it's painted
Filled in the old 87 strut holes and re-drilled new holes to re locate them for the 88 cradle . Also made a firewall cover to hide the wires. I am going to paint the engine compartment blue.
[This message has been edited by fourpoint9 (edited 07-31-2011).]
Favourite'd. Been pondering an LD9 conversion on my T-top, will see how your Quad4 swap goes first! I wonder how similar the LD9's Isuzu is to our own...
Nice clean install. I know two Fiero owners of Quad Four Fieros and they loved em. They give excellent mileage and the 3000-6500 RPM band is super strong. Just for comparison sake you might want to compare the cost and performance to a Fiero with an Ecotec to see how it differs.Good luck with the swap.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, 3.4" Pulley, N* TB, LS1 MAF, Flotech Exhaust Autolite 104's Custom CAI 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
May be awhile before I get to body mods. The engine swap, suspension and power steering will come first. I think I'll use the bumpers and side skirts from the molds I made for my orange Fiero and mod them some. Madcurl would insist on some tweeking right? The exhaust will not have dual tips so the rear will be modded for sure. Exhaust tip may exit in the center.
I wish you the best of luck on this. I got half way into my Q4 swap and put it on hold for work and weather reasons. All I did was get the motor half mounted to the cradle and had to suspend the project. I will be watching this for inspiration.
I started on a Q4-HO swap in my 84 years ago but had to put it aside for school and $. Got it mounted in the car about the same way you've done yours. Been thinking of doing the 88 cradle swap too. Once I get my 88gt running again I'll be looking to get back to it. I left off at rewiring the car using much of the donor's system since it was in better shape at the time(was looking to redo the interior with a new dash). Mainly needed to stretch and shorten parts of the wiring harness to snake it where it needed to go. But now that it's sat a few years I might as well start over on that too. Had it mapped out but lost some of the diagrams I made back then. I did get it cranked but need to rework the clutch setup.
Q4 might be dated now but I still like em nearly twice the power and better economy than the old 4. And I kinda like their sound.
Good luck on finishing up the install. I'll be following the progress and reviewing the old installs for ideas.
[This message has been edited by Sjuice (edited 08-09-2011).]
Just enough. I do think it will be close from looking at other Quad swap photos.
Cheers. Was wondering how one would fit with the GM supercharger kit for the LD9 involved, but if it's tight that's likely not an option. Guess we'll see when you get that sucker in the hole
Does your Fiero have cruise control? Mine doesn't, but my Quad donor car ('92 GTZ) does. Which would be easier, trying to adapt the CC parts from the GTZ to the Fiero, or just buy the CC system from the '86 Fiero that's in my local pull-a-part? I know the CC in my GTZ works, can't say that about the salvage yard car.
I do not have Cruise Control so hard for me to say. I should have progress pics soon with the engine and trans mounted to the cradle. Working on the wiring harness and power steering.
bump... has anything more happened with this build?
I'm trying to find a less common build than the usual ecotec, 3800 or just swapping in the v6 for my duke and had heard that this build was less complicated and involved as some other, more unique builds.
I've made some progress with my build. I removed the hump from the cradle so the AC compressor won't interfere with it.
It's not the best welding I've ever done but I think it will work. I'm also working on removing the rubber bushings and converting to metal mounts. I'm also looking for engine mounts.
[This message has been edited by Quad Raider (edited 10-14-2011).]
My Quad is still in my donor car, but you can see how close the duke's AC compressor is to the hump. Since the Quad has to sit lower in the cradle to clear the deck lid, the AC compressor will be very close to the hump, if not actually hitting it.
I'm working on modifying my cradle to eliminate the rubber bushings. On the rear, I'm replacing the rubber with pieces of pipe, so I can re-use the bolts and big washers.
On the front I've inserted pieces of pipe into the bushing sleeves. I'll weld some plate to the pipe to hold the steel tubes which I'm re-using from the rubber bushings. I realize now that I should have left the rubber in the bushings, drilled holes in the plate for the tubes and then welded the plate right over the rubber. That way the steel tubes would automatically be properly aligned.
bump... has anything more happened with this build?
I'm trying to find a less common build than the usual ecotec, 3800 or just swapping in the v6 for my duke and had heard that this build was less complicated and involved as some other, more unique builds.
i did not know that ecotec swaps are now considered common place . mine is the only running one that i have ever seen , and only around 5 have been seen on this forum .there are a lot more Q4 swaps out there than ecotecs .
Tell me what year Quad 4 it is, and which computer you're using, so I can be sure I have the right diagram pulled up.
I randomly pulled a diagram for an '89 vin A, and the CTS uses yellow and black wires. The only grey and red wire running to the pcm on that year computer was the AC pressure signal.
You're correct about the two green wires, D3 for the light (green) and C2 for the guage (green/white). However, the sensor in the Quad 4 is set up to operate the gauge at a different resistance.
Fiero 1365ohm @ 100*F 55ohm @ 260*F
Vin A Quad 4 1320ohm @ 100*F 77ohm @ 260*F
The sensor's use identical bodies. I ran into this with my 2.0L, and just used the original Fiero sensor.
The computer should control the fan relay. If your computer is from the '89 vin A, run C3-E8 (YE8) to D1 on the c500.
Thanks for the help! My ECU is from a 90 Beretta GTZ 2.3L HO
The Temp Sensor with Gauge is the same part number for the 90 Beretta GTZ 2.3L HO and the 87 Fiero 2.5L On Rockauto.com STANDARD MOTOR PRODUCTS Part # TS168
So if the ECU controls the Fan then I do not need anything going to C500 D1
As you've already noted, that engine uses the same sensor for coolant, the resistance values are the same.
You do understand that the computer controls the fan relay through C500 D1, don't you? On that computer, GE8 is the ground trigger for the relay. So you'll wire GE8 to C500 D1.
Well the wiring is almost done. I need to: Extend the two wires that go to a plug in the trans E1 and C1 Put the new sheilding on Work on the Starter/power wires.
Here's a pic.
I added a remote oil filter and a cool blue cold air filter. I might buy one of Rodney's True Cold Air Intake System to hook it up to.
[This message has been edited by fourpoint9 (edited 12-13-2011).]
