Tinkles
Well-Known Member
I just placed the order for my chassis so I guess I can finally start one of these.
1st a little background. I have spent the past 10 years messing with the Cobalt's older sibling the Chevrolet Cavalier. I currently have a 2003 Cavalier base model that is all fancied up with LS Sport "body kit" and a bunch of carbon fiber. I went through the whole suspension and upgraded what I could and tossed a Harrop HTV1320-LSJ supercharger on the stock engine. It dynoed 283whp/246wtq last fall on 101 octane fuel. The car is basically as good as I can get it without cutting it up and redesigning everything. I did build a Gen 1 L61 Ecotec(from a Cavalier) to swap in it to hopefully make over 400whp with the Harrop supercharger. But I have reached the point that I want a better, RWD chassis to play with. I have known about the Goblin for awhile now, but never put much thought into it unit I saw Matt Farah's video on it. Then I saw that Demo Matt got one and then I got more familiar with just how awesome a Goblin could be from his videos. So last fall I started gathering parts, put some money aside, and told myself that at tax return time/spring time I would order one. So now I ordered an Extended City chassis Goblin(Base/Manual).
The goals for my Goblin. Mainly a street car with some light track/autocross use. I want it to be absolutely bonkers, over 400whp with a blower. I know not using a donor is going to be more expensive and increase the difficulty of the build. Since I am going to be using the engine from a Cavalier, the transmission from a Saab, and whatever upgraded Cobalt parts I can get I do not feel like spending the effort buying, stripping, and deposing of a Cobalt.
Ok, enough of the boring stuff and onto the parts I have acquire so far.
1st up is the engine.
-Gen 1 L61 block
Weisco 10:1 pistons
Eagle rods
Eagle crank
Powerbore sleeves
GMPP hardened oil pump gears
-LSJ cylinder head
Ferrera +1mm oversized valves
Supertech 78lb springs
ZZP "Stage 2" LSJ blower cams
GMPP adjustable cam gears
Golden Eagle head studs
Stock LSJ head gasket
Boost will be handled by my Harrop HTV1320-LSJ blower from my Cavalier, 2.7" blower pulley, and ported intake manifold.
For the transmission I will be using a Getrag F40 and ZZP's F40 swap kit for the Cobalts. The main issue I already know that I'll have is the flywheel/clutch. I cannot use the included flywheel. The L61 has a 6-bolt flywheel where as the LSJ/LNF both have 8-bolt. I do plan on installing a Wavetrac LSD.
Since I am using a Cavalier engine the Cobalt's stock PCM/ECU will not run it(different trigger wheels on the crank). So I am going with a full standalone ECU.
Besides a few other odds and ends that is the meat of the parts I have so far. What stock parts I do need I'll run to the junkyard for and everything else I'll try to get upgraded parts.
Other ideas I have that I'll look more into once the chassis arrives are:
Hydrolic or manual power steering(downside to not running the Cobalt computers)
Manual brakes(LNF Brembos with Wilwood manual master cylinder and pedal box)
Side mounted heat exchangers/oil cooler
Body wrapped in a colored carbon fiber/kevlar
Cable driven throttle body
For wheels I am wanting 17x8 for the fronts and 17x9 for the rears. Tires I am looking at Hankook RS4s in 245(front) and 285(rear). I am fairly sure a 285 R-comp will be too much tire for it, but I am planning on having over 400whp and hoping something large like that will hook up.
I also will be setting the car up to run E85/E90.
I want to try to document the whole build on Youtube. I have never tried anything like that, so it might be quite painful to watch for a while.
I think that is everything. I'll update when new parts come in and try to answer any technicial questions to the best of my knowledge.
And a parting gift for the curious. The 2003 Cavalier that I built.
1st a little background. I have spent the past 10 years messing with the Cobalt's older sibling the Chevrolet Cavalier. I currently have a 2003 Cavalier base model that is all fancied up with LS Sport "body kit" and a bunch of carbon fiber. I went through the whole suspension and upgraded what I could and tossed a Harrop HTV1320-LSJ supercharger on the stock engine. It dynoed 283whp/246wtq last fall on 101 octane fuel. The car is basically as good as I can get it without cutting it up and redesigning everything. I did build a Gen 1 L61 Ecotec(from a Cavalier) to swap in it to hopefully make over 400whp with the Harrop supercharger. But I have reached the point that I want a better, RWD chassis to play with. I have known about the Goblin for awhile now, but never put much thought into it unit I saw Matt Farah's video on it. Then I saw that Demo Matt got one and then I got more familiar with just how awesome a Goblin could be from his videos. So last fall I started gathering parts, put some money aside, and told myself that at tax return time/spring time I would order one. So now I ordered an Extended City chassis Goblin(Base/Manual).
The goals for my Goblin. Mainly a street car with some light track/autocross use. I want it to be absolutely bonkers, over 400whp with a blower. I know not using a donor is going to be more expensive and increase the difficulty of the build. Since I am going to be using the engine from a Cavalier, the transmission from a Saab, and whatever upgraded Cobalt parts I can get I do not feel like spending the effort buying, stripping, and deposing of a Cobalt.
Ok, enough of the boring stuff and onto the parts I have acquire so far.
1st up is the engine.
-Gen 1 L61 block
Weisco 10:1 pistons
Eagle rods
Eagle crank
Powerbore sleeves
GMPP hardened oil pump gears
-LSJ cylinder head
Ferrera +1mm oversized valves
Supertech 78lb springs
ZZP "Stage 2" LSJ blower cams
GMPP adjustable cam gears
Golden Eagle head studs
Stock LSJ head gasket
Boost will be handled by my Harrop HTV1320-LSJ blower from my Cavalier, 2.7" blower pulley, and ported intake manifold.
For the transmission I will be using a Getrag F40 and ZZP's F40 swap kit for the Cobalts. The main issue I already know that I'll have is the flywheel/clutch. I cannot use the included flywheel. The L61 has a 6-bolt flywheel where as the LSJ/LNF both have 8-bolt. I do plan on installing a Wavetrac LSD.
Since I am using a Cavalier engine the Cobalt's stock PCM/ECU will not run it(different trigger wheels on the crank). So I am going with a full standalone ECU.
Besides a few other odds and ends that is the meat of the parts I have so far. What stock parts I do need I'll run to the junkyard for and everything else I'll try to get upgraded parts.
Other ideas I have that I'll look more into once the chassis arrives are:
Hydrolic or manual power steering(downside to not running the Cobalt computers)
Manual brakes(LNF Brembos with Wilwood manual master cylinder and pedal box)
Side mounted heat exchangers/oil cooler
Body wrapped in a colored carbon fiber/kevlar
Cable driven throttle body
For wheels I am wanting 17x8 for the fronts and 17x9 for the rears. Tires I am looking at Hankook RS4s in 245(front) and 285(rear). I am fairly sure a 285 R-comp will be too much tire for it, but I am planning on having over 400whp and hoping something large like that will hook up.
I also will be setting the car up to run E85/E90.
I want to try to document the whole build on Youtube. I have never tried anything like that, so it might be quite painful to watch for a while.
I think that is everything. I'll update when new parts come in and try to answer any technicial questions to the best of my knowledge.
And a parting gift for the curious. The 2003 Cavalier that I built.