Opel GT motor swap... 3x the stock power!

To start off yep, we are swapping a Volkswagen 1.8t motor into a Opel GT!
Over the weekend me and Justin decided to finally start ripping apart the Opel GT motor and we ran into a few issues. First we found that the Opel GT Valves were completely shot and the head would need to be rebuilt on the motor. in addition the bottom end has seen better days and if the head would need to be rebuilt so should the bottom end. Justin was not to happy about this and we started thinking. what motor would fit well inside the Opel engine bay. The first motor that came to mind was the 1.8T out of a MK4 Volkswagen GTI. lucky for use we had a 2.0 inline 4 out of a Jetta sitting around the shop which is almost the same detentions as a 1.8T. It took some time but surprisingly the motor fit incredibly well inside the engine bay. The next step will be for use to source a transmission and a stand alone ECU so we can get new motor up and running. there will be loads of fabrication that needs to be done but we hope that this will make for a fun build that you all will come along and enjoy.
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Thank you for watching

[@TrakThora]

250 hp is a brutal build for this lightweight. Great 👍

[@davidsheward2113]

FYI : One thing you might want to acquire for your mock-up. Cross members as well as drive shaft in the OGT are different between the 4 speed & automatic transmission cars. In as much as most common change in them is to a 5 speed these are parts that are fairly easy & inexpensive to get your hands on and may help? Also the best thing (IMHO) about the Opel is the "balance & weight distribution" is nearly 50/50. I'm sure you noticed how far back into the firewall original engine was. That is what makes these cars handle so well so try to maintain that. Moving the battery to the rear passenger compartment side in a stock one helps this slightly so that might be a consideration as well. A bit of reinforcement to handle the added torque not a bad idea also. That is a common mistake those dropping V8 or V6 in them have made with disastrous results. Cool build ...will be watching!

[@ThreePedalGarage]

Thank you for the insight! I agree with you on the placement of the motor is very crucial to keeping that 50/50 balance we are going to try and keep it like that if we can. We also talked about stiffening up the rear of the car like you mentioned to handle the torque better. It will be cool to see how it turns out

[@VTSVAUTO]

nice swap guys! can't wait to see it on the road. Great video!

[@ThreePedalGarage]

Thank you man! Going to be an interesting build to say the least

[@jlperez1234]

I am dying to see the next video on your Opel project!!!!!!!!!!

[@ThreePedalGarage]

Lol I’m hoping soon. My friend ran into some issues and he needs to get that figured out first.

[@Banch3z]

love the idea for the motor swap it will be super different and you should get some crazy power out of the car!

[@nickcox7631]

I've been watching your progress here with interest - great videos, keep them coming! You're a few months ahead of me (I'm still stripping back for some minor body work and paint). I'd love to know how you plan on addressing the drive shaft and rear diff mods to put all that power down.

[@ThreePedalGarage]

We are thinking of looking to get a old Toyota truck 2wd rear axle then we will need to make custom drive shaft

[@BrianReno-qy9wk]

In theory it will be a 11 second car. Probably low 13 or high 12s problem is traction. Wider tires and some rear end fabrication. The stock rear end won't take anything over 200hp and torque you will have to modify a S10 rearend

[@mikefowler2445]

ya that opels been scrapped or forgotten about 😂😂

[@thomasiijames]

I just found this series. You are doing a great job! I had a GT back in the day and they are still very near and dear to my heart. I see that you haven't posted any new content on this project for over a year. Did it put on the back burner?

[@ThreePedalGarage]

We will get back to it. My friend got in a bad motorcycle accident and has been paying off his medical bills. He will be ready to start in it again in a month

[@thomasiijames]

@@ThreePedalGarage Sorry to hear about the accident. I hope his recovery goes well ! I look forward to seeing opel move forward.

[@ShivaSharma-zs6gt]

I've been thinking of a 1.5 EcoBoost motor but would need to find a rwd transmission to bolt to it

[@ThreePedalGarage]

@@ShivaSharma-zs6gt the 1.8t is pretty strait forward and a guy in the UK has a RWD transmission kit for them.

[@MrBlackbutang]

Absolutely Feckin Awesome

[@ThreePedalGarage]

Thank you! We are hoping to get back on the build soon

[@pythontherun8798]

Was going to mention the rear end, my friends are doing a BP1.8 turbo swap in his Opel, and he is keeping the power down to avoid shredding the rear end, at least until we can get a Ford 8.8 into it.

[@ThreePedalGarage]

We are doing a build limited slip differential in the rear. It’s a little more but we don’t have to rebuild the rear end

[@pythontherun8798]

@@ThreePedalGarage very cool! Looking forward to seeing it finished!

[@tonycavez]

very common to repower the Chevettes with VW in Brazil

[@jlstock_1]

Looking forward to the updates on Opel GT. I had 4 in my life. Loved the car, very fun to drive but the 90ish HP engine and 4 speed just drove me nuts so I lost interest.

[@ThreePedalGarage]

Yep I get that! We hope to have the Opel Gt back once we are finished with our GTI build. We are trying to finish one build at a time lol. We almost have all the parts for the swap now.

[@shawngroover9003]

For some reason, these guys make Me think of The Beastie Boys. You gotta fight….. for your right….. to party !

[@ThreePedalGarage]

Hahaha I like that 👌🏼👍🏻

[@shawngroover9003]

@@ThreePedalGarage 👍

[@tonycavez]

for a transmission go with toyota 5 sp get an adapter from Acme , doomsday or dieselconversion they are made for the TDI but will bolt up to a gas model

[@ThreePedalGarage]

They also have a kit for a T5 trans out of a mustang. That what we are using

[@BrianReno-qy9wk]

Easier swap is a lz9 engine and 700r4 transmission use a megasquirt stand alone.. or just a 3.4 from a 93 to 95 Camaro and grab the ecm and wiring grab the transmission easy hookup.

[@dposcuro]

But why would _anyone_ want an automatic trans, in a sports car?

[@BrianReno-qy9wk]

@@dposcuro because 1/4 mile times are always better.

[@user-gb7vo1rl4w]

Did you try to fix aMazda rotary engine? I think it's the best engine w'll be

[@ThreePedalGarage]

It’s a good option just the engine cost 10X as much as a 1.8t. The engine we got was $300 fully running

[@lifeofme3196]

I have a 1970 opel gt and a leftover TDI motor and am considering doing this. Have you made progress on this swap? What is the total cost. I do not have a transmission for the TDI, what bolts in the easiest and cheapest? Is there anything else I should be aware of?

[@ThreePedalGarage]

Haven’t made progress sadly. My friend ran into some money issues. Trying to get the project back up and running soon

[@Geeboogobber]

When are you guys planning to post more of the build?

[@ThreePedalGarage]

Hopefully in the next 3 weeks or so. We are waiting on getting the adapter from the UK. We want to have the motor and trans to mock it all up for the next video

[@Geeboogobber]

@@ThreePedalGarage 👀 well hurry it up I'm trying to copy your idea

[@ThreePedalGarage]

@@Geeboogobber haha we will. Sadly Justin got in a motor cycle accident a few months ago and it drained a lot of his bank account so he’s just trying to also get a few other parts for the build.

[@Geeboogobber]

@@ThreePedalGarage oh no well I hope he gets better soon!

[@ThreePedalGarage]

@@Geeboogobber yaaaa he almost lost his foot... not good but he’s walking again. Just need to get some more money together so he can buy parts

[@yllismajli3168]

these mf just entered my dream 😂

[@ThreePedalGarage]

The the project as stalled a little but also taken a new direction. The 1.8t will fit really well in the engine bay but my friend wants to do a VR6 swap instead lol sooo that’s what we are working on now

[@TheRAMBOhimself]

It has been a year! Update please

[@ThreePedalGarage]

We are currently waiting on my friend to get the money together. We need to do a lot of body work on the car so we needed to buy a lot of tools and learn how to weld. We are almost ready to start the body work which will be the first update. After that we will be rebuilding the whole engine and be adding a hybrid k03 turbo. We have a brand new t5 transmission and have a custom bell house to connect it all. Just going to take some time.

[@TheRAMBOhimself]

Hell yeah. Look forward to seeing your future videos on it

[@1xBossup]

@@ThreePedalGarage Hell yea 🔥

[@w41duvernay]

1.8 L VW engine is kind of weak. There are GM supercharged 2.0L ecotecs, and the W41 Quad 4 engine. There are a lot stronger choices out there.

[@jimvelie5654]

I have been looking for a nice eng swap Opel GT for sale/

[@ThreePedalGarage]

I guess we will have to see how this engine swap turns out and if it work well

[@markanthony3275]

And what diff are you going to use...the stock diff won't handle the power .

[@ThreePedalGarage]

So we are going to upgrade to a quaife LSD

[@markanthony3275]

@@ThreePedalGarage Thanks for getting back to me . I once owned an Opel Gt so I'm always curious to see what other people will make of them ...best of luck !

[@ThreePedalGarage]

@@markanthony3275 yep no problem! Ya we are trying to give the Opel GT a little more power that won’t brake the bank.

[@markanthony3275]

@@ThreePedalGarage Do you have a plan to upgrade your brakes as well ? I'm sure there must be kits for that ...boy you're gonna need them ! LOL . When I owned my Opel , I had a plan to stuff a V8 engine and transaxle from a 1980 Riviera , into the rear of the car like a poor man's De Tomaso Pantera . I'm sure glad I didn't ...it would have been monsterous !

[@ThreePedalGarage]

@@markanthony3275 yep we are planning on upgrading to BMW or Volvo brakes for the front and rear. It will give us the stoping power we are looking for.

[@zdravo4]

You are weighting cars in pounds. What's wrong with you guys? How you measure current? In feelings?

[@user-yj1nf2vg5x]

so I am taking it that you guys never finished this project ??

[@ThreePedalGarage]

Switched the project. Doing a VR6 swap instead. Going to start filming soon

[@user-yj1nf2vg5x]

as much as I would like to see that,. you know and I know that it will be a flipping snow plow! I mean there's no way it will handle at all,.. so it won't be a dragster,. it will /shake its self apart as a drift bucket,. I think you where on to something with the MK4 but oh well.. lets see what happens@@ThreePedalGarage

[@ThreePedalGarage]

@@user-yj1nf2vg5x so I get what your saying but the VR6 is actually only a few inches longer then a 1.8t engine and they weigh actually less then the stock Opel engine. It has over double the power and has more torque so it will actually get up and go. It may be a pain in the ass to fit so that may be the hard part.

[@aaronkirsch4900]

well ok than.. My interest here is that I have always wanted to own one of these,. but they where gutless,..now I know of a car that has been totally restored but I would want to drop in more power,.. its going to be difficult to get it low and back into that frame to get a 50 /50 weight Ok so I am looking forward to it.. @@ThreePedalGarage

[@tamileavitt8509]

dose it matter what year it is?

[@tamileavitt8509]

also what did you use for transmition

[@stanallport6746]

2 thousand twenty four hundred pounds?