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I had a couple of guys, one in a BMW M3 and one in a Nissan 200SX or something, flat out refusing to believe that my 2.7 only produced 175 hp since their cars had "well over 250 hp" and they couldn't pull away from me down the straight at a local track day.
Back in 1992 I was autocrossing my daily driver Ascona with a 140 hp 2.0 liter engine. At one of the autocrosses I was approached by a guy with an Mk1 VW Golf. His car was getting featured in a magazine called 'European Car' here in the US.

A photographer was flying out to the Boston area to do a feature on his car, and wanted to see if there were other interesting cars he could photograph. Since my car was super unique in the US and had been cleaning up in my autocross class, I got the invite.

Part of the process after photography was listing specs and mods, then taking the guy for a drive. Basically, I scared the crap out of the photographer with my car. When I told him it had 140 hp he stated my car was faster than all the others...including the 2.1 liter stroker 165 hp Golf and modified 16v Scirocco. And in terms of handling, he said my car was far beyond theirs. My car never got featured in the magazine, but I do remember the look in the guy's eyes when I ripped the car up to 115 mph in a 45 zone. :yup:
 
Goy, I'll tell ya, a lot of 2.4 threads came on line right about the time I had purchased a 2.0 cylinder head built up by the Source folks. Then PJ had that great Youtube video of his country drive with that little tiger and I suddenly realized that is the way to true Opel nirvana! Alas, as it stands, when I get rolling on the GT project in that near future, she'll be a 2.0. There are some wonderful day tripping roads that parallel the nearby Delaware River and a modified GT with a 2.0 will be a nice way to spend the day. Like they say in America, in regards to Muscle Cars: there is no substitute for cubic inches. Or in our case, cubic centimeters!

Mike
Absolutely nothing wrong with a sensibly modified 2.0 either Mike, I had one of those followed by a "less sensibly" modified 2.0 in my Ascona and they were both great fun but the lesser of those two engines were clearly the better choice for a street driven car and at almost 130 hp running on dual 40's it wasn't exactly a slouch either and had much better low end torque than a stock engine.

It's the obvious choice for someone who wants more performance but doesn't want to spend too much money on the engine.

We can't all be PJ Romano, who knows what that car has cost over the years, and most of us don't have Heliman's patience or skills or we'd all be driving firebreathing speed monsters. I won't even mention RB because I hate that guy ....

Heck, I still have a low comp US spec engine in my TR6, which is pretty much the equivalent of driving a GT with a stock low comp engine, 25 years ago I would have had a built engine waiting for it when it arrived at the dock after I bought the darn thing.
 
in regards to Muscle Cars: there is no substitute for cubic inches. Or in our case, cubic centimeters!

Mike
I do agree, but in reference to the original poster;
if you want a car that is "fun" to drive, which means more then just a 1/4 mile at a time, more like 100 miles at a time and with lots of sharp corners long sweepers and a few hair pins and neat tidy straightaways, you need different cars for different purposes. If and when (greater being willing) I get the GT done, I know in the end result I want a car that handles and is QUICK, but it doesn't have to be ground pounding tire tearing rubber melting quick. To get that requires light weight, with a balanced platform. The GT with an original factory engine (whether 1.0 up to 2.5 is the best way to go because it retains the weight bias designed into the car). You can squeeze more then enough out of them without selling the house, and they will be FUN :yup:
Now if I want to go out and be American Muscle Style, with loud V8 rumble (actually still capable of tearing up the road courses, cause I like to build them that way) I take my Dart out with the current built 360. I have plans in the works of someday building the stoker 470 and with the expenditure of $$$ maybe keep the engine weight to a minimum so as to not upset the already tail happy balance of this thing.

But first, the GT..........:ugh:

As for RalleyBob, when he writes, I add to the GT bible the words of the Opel Gawd, for he has spoken nothing but truths :hail::hail::hail:
 
Many people underestimate the impact a little weight loss has on the performance of a car.

An engine that pulls evenly up the rev range, which does not fall under the power range when you change up, and that can continue gear after gear will always win over stronger engines.
The right setup of gearbox and rear end is just as important as lot of horses.
 
Look on the faces of guys with 170 horsepowered renault clio sport or bmw with 144hp IS engine is priceless when you beat them every time by few seconds on 1 mile lap. Even thou my car had fuelling issues and understeers badly at turn in, not to mention I drive mostly like a lady and in 2nd gear because of bad syncros. Estimated power is 130 horse at flywheel.
https://www.youtube.com/watch?v=rLJZ3JF6aN4
 
Look on the faces of guys with 170 horsepowered renault clio sport or bmw with 144hp IS engine is priceless when you beat them every time by few seconds on 1 mile lap. Even thou my car had fuelling issues and understeers badly at turn in, not to mention I drive mostly like a lady and in 2nd gear because of bad syncros. Estimated power is 130 horse at flywheel.
https://www.youtube.com/watch?v=rLJZ3JF6aN4
Wow, under steers badly is an under statement. Your inside wheel is locking up so badly your tire is smoking at points.

Without looking at your Manta, or knowing it's history, all I can say is you need some thing, or maybe a couple somethings.

On the other hand for what your pushing, you drive it well.
 
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