Horsepower Index of Aftermarket Bolt-Ons over Stock

[BlackdOutGST]

Correct me if I'm wrong, but I could not find any thread of its kind.

If it exist, I am looking for an index or a good reference chart of horsepower gain or loss of aftermarket bolt-ons compared to stock. Example: What is the horsepower gain of a FMIC compared to the stock side intercooler?

If there is not a so called ONE STOP SHOP REFERENCE CHART for this information, I would like to turn this thread into IT, and my first question that I will ask is,

" What is the HP gain/loss from swapping a Stock 92' 6-Bolt 4G63 Turbo INTAKE for a Stock 95+ Turbo INTAKE?" Note* swap is not for my car, it's for a friends 92' Talon. He is wondering if the 95+ intake will do anything horsepower wise.

 

[No_Skillz]

This sounds like some sort of fancy, dressed up bench racing. Or at the very least will turn into it.

Every car responds to mods differently, not to mention type and brand of mod. Just do your research on the part(s) you are interested in.

And no (if you are talking about intake manifold), a 2G turbo manifold flows less than a 1G turbo manifold.

 

[knochgoon24]

Just check ebay. Every ad has an advertised horsepower gain. Their guess is as good (well not really) as ours.

 

[BlackdOutGST]

True, I don't want to bench race either. I can understand the varying HP gains/loss on different cars. I stand corrected (Intake manifold) thanks for the answer though.

I don't trust Ebay horsepower ratings very much, but If I must I guess I will. Don't have much else to go by.

Thanks guys

 

[crimsondragon]

Follow the 2g upgrade path our site has so kindly posted. Decide on each part. Put it all together and take it to the dyno. There's your answer to how much hp you gained.

 

[ove_98 TSI]

i think that their is way to many variables that can come into play on deciding how much HP you will gain from parts, do any others agree? and yes the 2g intake flows less than the 1g so you will lose performance

 

[talonalex92]

I get what your saying. There's a magazine called "project car" that does this kind of thing. In the first issue, they do a 1g gsx. Here's what they gathered in a nutshell.
'Since we didn't get to baseline the car in pure stock form, we dynoed it with the unorthodox crank pulley. On the mustang dyno, it put down 150 hp...We gained around 3 horsepower/5 ft.lbs with the new K&N filter, perhaps with the stock filter in first we would have seen more gains...Now that the exhaust has been opened up (apexi cat delete dp and megan catback), the stock turbo can breath. Horsepower jumped to 185, and boost started to increase..We saw peak horsepower jump to 202 with the upper hard pipe kit, boost increased and our AFRs turned dangerously lean, so we needed more fuel...wally pump and rc 550s added..With our To4B 47 trim, and the boost set at a conservative 1.1 bar, master tuner Jeff Lee was able to lean and tune the car out to 216 at the wheels, in a much safer manner. The af chart shows the numbers. We could have boosted more to increase gains, but a compression test showed this motor was starting to get weary." The mag has all the dyno graphs, and numbers but that's a summary. If you want more of this, your going to need a lot of free time and your own dyno. Good luck friend.

 

[AlaskanDsm]

I get what your saying. There's a magazine called "project car" that does this kind of thing. In the first issue, they do a 1g gsx. Here's what they gathered in a nutshell.
'Since we didn't get to baseline the car in pure stock form, we dynoed it with the unorthodox crank pulley. On the mustang dyno, it put down 150 hp...We gained around 3 horsepower/5 ft.lbs with the new K&N filter, perhaps with the stock filter in first we would have seen more gains...Now that the exhaust has been opened up (apexi cat delete dp and megan catback), the stock turbo can breath. Horsepower jumped to 185, and boost started to increase..We saw peak horsepower jump to 202 with the upper hard pipe kit, boost increased and our AFRs turned dangerously lean, so we needed more fuel...wally pump and rc 550s added..With our To4B 47 trim, and the boost set at a conservative 1.1 bar, master tuner Jeff Lee was able to lean and tune the car out to 216 at the wheels, in a much safer manner. The af chart shows the numbers. We could have boosted more to increase gains, but a compression test showed this motor was starting to get weary." The mag has all the dyno graphs, and numbers but that's a summary. If you want more of this, your going to need a lot of free time and your own dyno. Good luck friend.

Hey! I have that magazine! I read it over and over trying to figure out what they could have done different.

 

[jrohner]

Correct me if I'm wrong, but I could not find any thread of its kind.

If it exist, I am looking for an index or a good reference chart of horsepower gain or loss of aftermarket bolt-ons compared to stock. Example: What is the horsepower gain of a FMIC compared to the stock side intercooler?

If there is not a so called ONE STOP SHOP REFERENCE CHART for this information, I would like to turn this thread into IT, and my first question that I will ask is,

" What is the HP gain/loss from swapping a Stock 92' 6-Bolt 4G63 Turbo INTAKE for a Stock 95+ Turbo INTAKE?" Note* swap is not for my car, it's for a friends 92' Talon. He is wondering if the 95+ intake will do anything horsepower wise.

The only ones who say these gains are part manufacturers (or people trying to sell the parts), and it's not because it's accurate, but because they are trying to make their product look appealing and make you think you need it.

A 2G intake won't even fit right on a 1G, the ports are way smaller on the 2G head and intake. Plus, you then would have that UGLY 2G intake instead of the nice 1G intake.

FMIC - The hotter it is outside, the more power gain. How much boost are you running? What fuel are you running? How efficient of a turbo? What's your timing and AFR? Compression ratio? How fast are you traveling (more/less air to cool the intercooler). The list could go on forever, and it would still not really tell you what kind of power you'll gain. Also, a peak number means basically nothing, you need to look at the whole power/torque curve to see if there is a true improvement or not.

 

[talonalex92]

Hey! I have that magazine! I read it over and over trying to figure out what they could have done different.

What, like used decent parts?