New '86 owner

[Tcoat]

Originally Posted by martin05rc

Any pointers would be appreciated.


Thanks,

-Martin

Originally Posted by martin05rc

Of course, this is true in an absolute sense. However, most exhaust systems are not operated at their maximal flow rate, which means there's room for a supercharger to allow you to burn more fuel per stroke and, therefore, produce more power.

If you know then why ask?
I think you will find that the intake and exhaust on these are already pretty evenly matched. Just slapping a SC on isn't going to gain you much of anything.

[Tcoat]

Originally Posted by strat61caster

imo it's only a minor selling point in Edelbrock's favor, you also only get 3 year/36k mile warranty from the day the car gets put into service, so if you install it next year you'll only have 2 years left on warranty. If you hit 30k miles before installing it, you only have 6k miles left on the warranty.

It's a nice 'we stand behind our product' but for most people the warranty is unlikely to be of significant value, and as you say the approved installer adds a few hundred bucks onto the install (shouldn't be more than an 8 hour job, at $100/hour 'thousands' is an overestimate).

From the original post and the concern about CELs being "nightmares" I figured the warranty may be something he would like. Apparently I was wrong.

[humfrz]

Originally Posted by imnotsureaboutbrz

I'm not arguing with you here but as a Air Quality Meteorologist who works at a Federal Regulatory agency it pretty near impossible (for an individual) to get slapped with a CAA violation when there is no State agency regulating emissions.

Why not ........??







humfrz

[strat61caster]

Originally Posted by Tcoat

From the original post and the concern about CELs being "nightmares" I figured the warranty may be something he would like. Apparently I was wrong.

I think Edelbrock is a good suggestion, but it's not the most trouble free kit and the warranty they offer is of limited usefulness for most people that wait until after they're out of factory warranty or do their own work.

I have not seen a single major failure or unfixable issue on an emissions legal forced induction kit that was properly installed, but very few modifications are truly hassle free, and sticking a blower on top of a motor that didn't come from is pretty far down the spectrum of 'minor vs major'.

[humfrz]

Originally Posted by Tcoat

If you know then why ask?
I think you will find that the intake and exhaust on these are already pretty evenly matched. Just slapping a SC on isn't going to gain you much of anything.

DANG, Tcoat did you and @strat61caster both get out of the wrong side of your cars this Monday morning ......

As far as adding a SC and not modifying the exhaust ....... I wonder if anyone has any numbers on that ......??

Hey, it was "late start" Monday for the granddaughters ...... so, I got lots of free time on ma hands ........


humfrz

[strat61caster]

Originally Posted by humfrz

As far as adding a SC and not modifying the exhaust ....... I wonder if anyone has any numbers on that ......??

humfrz

lol

From what I've seen there's a few dynos that mention before or after catback exhaust, you get more power gains than the catback exhaust on the stock engine, but nothing crazy, I think expecting >10hp for a catback exhaust on a modest forced induction engine (like OP is considering, <300 hp) is very optimistic. This is compared to the 5hp or less those systems offer on a stock engine.

They aren't very obvious to find and OP is probably best off calling his local resources like Delicious Tuning for their opinion. And at the end of the day, if being subtle about it is desired the stock exhaust seems to be the quietest option on the market.

[Tcoat]

Originally Posted by humfrz

DANG, Tcoat did you and @strat61caster both get out of the wrong side of your cars this Monday morning ......

As far as adding a SC and not modifying the exhaust ....... I wonder if anyone has any numbers on that ......??

Hey, it was "late start" Monday for the granddaughters ...... so, I got lots of free time on ma hands ........


humfrz

Not in the least.
A request was made for opinions.
An opinion was given and supported by others.
Opinion was cast aside as irrelevant due to extensive engineering knowledge.
Fact that opinions were asked for was pointed out.
How does that make me grumpy?


Original post indicates a desire for an increase of 80hp or 50% and that is NOT going to happen with any type of FI and stock exhaust.

[Clipdat]

Stop being so god damn grumpy. Grumpy Mc. Grumperson the third over here.

Originally Posted by Tcoat

Not in the least.
A request was made for opinions.
An opinion was given and supported by others.
Opinion was cast aside as irrelevant due to extensive engineering knowledge.
Fact that opinions were asked for was pointed out.
How does that make me grumpy?


Original post indicates a desire for an increase of 80hp or 50% and that is NOT going to happen with any type of FI and stock exhaust.

[humfrz]

Originally Posted by Tcoat

Not in the least.
A request was made for opinions.
An opinion was given and supported by others.
Opinion was cast aside as irrelevant due to extensive engineering knowledge.
Fact that opinions were asked for was pointed out.
How does that make me grumpy?


Original post indicates a desire for an increase of 80hp or 50% and that is NOT going to happen with any type of FI and stock exhaust.

Maybe so, but what I was looking for was this comparison, quantified:

A tuned FA20 engine with a supercharger and the stock exhaust

vs

A tuned FA20 engine with a supercharger and a header and opened up exhaust.

Who has these numbers and what are they ......??


humfrz

[Tcoat]

Originally Posted by Clipdat

Stop being so god damn grumpy. Grumpy Mc. Grumperson the third over here.

[Tcoat]

Originally Posted by humfrz

Maybe so, but what I was looking for was this comparison, quantified:

A tuned FA20 engine with a supercharger and the stock exhaust

vs

A tuned FA20 engine with a supercharger and a header and opened up exhaust.

Who has these numbers and what are they ......??


humfrz

I could probably find them but am now to grumpy to be bothered.

[strat61caster]

Originally Posted by Tcoat

Original post indicates a desire for an increase of 80hp or 50% and that is NOT going to happen with any type of FI and stock exhaust.

That's almost exactly what Edelbrock advertises on stock exhaust with emissions legal tune btw.



If you presume the car dynos from 160whp to 170whp that's almost bang on a 50% increase and 70-80 whp improvement.

http://www.edelbrock.com/automotive/...ers/fa20.shtml

[Tcoat]

Originally Posted by strat61caster

That's almost exactly what Edelbrock advertises on stock exhaust with emissions legal tune btw.

If you presume the car dynos from 160whp to 170whp that's almost bang on a 50% increase and 70-80 whp improvement.

It does not show what was done with the exhaust.


Oh wait I missed it. Nevermind.


That is incredibly optimistic!

[strat61caster]

Originally Posted by Tcoat

It does not show what was done with the exhaust.


Oh wait I missed it. Nevermind.


That is incredibly optimistic!

Maybe so.

I think you're underselling how free flowing the factory exhaust is, nobody is seeing better than single digit gains from catback exhausts which is almost in the noise of being totally insignificant.

With modest forced induction the bottleneck is not the pipe from the catalytic converter rearward. And there seems to be another 10-20 horsepower locked away in the emissions compliant tunes. Pushing big boost, sure, but not on the emissions legal setups.

Will those numbers have OP happy, who knows, numbers are just numbers, putting your foot down doesn't display a dyno chart on the gauges to fulfill your ego.

Oh wait...

Edit: I suppose you may also mean that those numbers aren't achievable with the factory catalytic converter in place and that a header is necessary, again, there are dynos out there around what the OP wants, ~240whp with factory emissions components in place.