FAST intake manifold is garbage!

[camaro guy]

Originally Posted by DanD

I would say you should of gained 35-40 rwhp MAX with all the mods.. Remember you can't add them up, doesn't work that way.. 5 different 10 hp mods are really worth 25 maybe.. all together.

Though I would look for someone with a mustang or dynojet dyno so you can compare your car to others, since those are the 2 most popular dynos around. Good Luck.

Dan D has it right. you cant add all the hp gains. they work together. expecting about half of the total add on hp is about right.

[leviticus88]

Originally Posted by tsears

With my mods being this IM, a Vararam, ARH LT's, HF Cats, X-Pipe, from an advertisers perspective I should be picking up:

(RWHP)
25 -30 Vararam

16 FAST IM

32 ARH LT's, HF Cats and X-pipe

Total 73 RWHP (conservative)

My Mainline dyno initial dyno with bolts and no tune put down an average of about 295RWHP.

With a tune I am now putting down 315RWHP


So... where are these gains that I am supposed to see? I paid a lot of money to get parts and power. I expect it.

I'm have a 2SS/RS L99

This isn't how modding works.
You can't just add the advertised numbers and assume thats what you will get.
There is many more things that go into it.
Tuning, picking parts that compliment each other for a performance goal, etc.

This isn't news but aftermarket manufactures will exagerate their gains to help sell products and rarely do they tell you the whole truth about their numbers.

[tsears]

I've read that MainLine Dynos are about 18% less than a Dynojet. With that account, I'm pushing 371.7hp roughly on a DynoJet.

[VADER SS L99]

Originally Posted by tsears

Okay, I may have spoken out of anger a bit there. The FAST is okay considering the mods that I have. BUT I have spent $950 on a IM that I won't see any real gains from until I do another 4-5K in modifications. The advertised the specs are :



With my mods being this IM, a Vararam, ARH LT's, HF Cats, X-Pipe, from an advertisers perspective I should be picking up:

(RWHP)
25 -30 Vararam

16 FAST IM

32 ARH LT's, HF Cats and X-pipe

Total 73 RWHP (conservative)

My Mainline dyno initial dyno with bolts and no tune put down an average of about 295RWHP.

With a tune I am now putting down 315RWHP


So... where are these gains that I am supposed to see? I paid a lot of money to get parts and power. I expect it.

I'm have a 2SS/RS L99

I hate to be the bearer of bad news but you probably lost power as a result of that intake. The L99 cam is tiny and that intake will do nothing on any motor unless highly modified. I actually read where a build lost power with that intake on a L99. THis is where it gets interesting. That build was a MAST stage 3 heads with stage 2 cam and full boltons. The magazine that did the article has more reason to hype up the fast than report the truth considering fast is a sponser of the mag. If that full heads, cam and bolt on car lost between 5-10hp and torque what do you think you lost? The FAST is a good intake if you are above 427 ci or have alot of boost FI but otherwise like that test showed it will hurt you. I know it would be no easy task and maybe costly but you might consider putting the stock intake back on and see what she makes. Look especially at the power under the curve as I know that WILL get better with the stock intake.

[tsears]

Originally Posted by VADER SS L99

I hate to be the bearer of bad news but you probably lost power as a result of that intake. The L99 cam is tiny and that intake will do nothing on any motor unless highly modified. I actually read where a build lost power with that intake on a L99. THis is where it gets interesting. That build was a MAST stage 3 heads with stage 2 cam and full boltons. The magazine that did the article has more reason to hype up the fast than report the truth considering fast is a sponser of the mag. If that full heads, cam and bolt on car lost between 5-10hp and torque what do you think you lost? The FAST is a good intake if you are above 427 ci or have alot of boost FI but otherwise like that test showed it will hurt you. I know it would be no easy task and maybe costly but you might consider putting the stock intake back on and see what she makes. Look especially at the power under the curve as I know that WILL get better with the stock intake.

Yeah I've been considering porting the stock head and throttle body then doing a re-tune. But I've also got my sights set on a Vortech Blower. My dilemna now is whether to do that porting for now, wait a year and then do the blower OR keep the FAST, and get the blower in a couple of months.

[firelife25]

Originally Posted by tsears

Yeah I've been considering porting the stock head and throttle body then doing a re-tune. But I've also got my sights set on a Vortech Blower. My dilemna now is whether to do that porting for now, wait a year and then do the blower OR keep the FAST, and get the blower in a couple of months.

Did you get dynoed at excelsior?...if so they do great work....but if your looking for numbers on a dyno you wont find them there....yes a dyno is a tool....but most people want to see numbers....take your car to jba off of convoy have it dynoed your mood will change i promise!!!!

[VADER SS L99]

Originally Posted by tsears

Yeah I've been considering porting the stock head and throttle body then doing a re-tune. But I've also got my sights set on a Vortech Blower. My dilemna now is whether to do that porting for now, wait a year and then do the blower OR keep the FAST, and get the blower in a couple of months.

If you port the heads and stock throttle body I would recommend putting the stock intake back on. If you truely are going to get the Vortech hold on to the FAST and then put it on when the blower goes on because at that point the intake will help you. just my 2 cents and recommendation.

[cam-]

The stock intake performs very well until you get into the 500 whp range on stock displacement but it makes noticeable gains in mild build big cube engines. Long story short the stock intake is an amazing piece and will do the job for all but the most radical n/a builds.

It does add power on stock engines though but not much. IIRC Patrick G installed one and the TB on his stock GTO and tuned it to perfection and even then only picked up around 12 whp.

Knowing his rep I'd say thats the best anyone could expect to get from one on a stock engine. Sure add cam and port heads and the gains will be improved but it is pricey gains thats for sure

[WheelmanSS]

Originally Posted by tsears

I installed the Vararam. My tuner says they suck. But he also said that the Haltech I had before was worse. lol.

Did he elaborate on why the Halltech is "worse"? I have a hard time believing that. For a bolt-on, no-tune required intake kit, I have to say that have done the most research of any company making this type of product.

[DieselNuts]

Originally Posted by mlee

Old news... should have researched it first...

It looks cool though

[SK360]

Another thread crying about dyno numbers.

Dyno numbers are for internet racers.

Go to the track and see the gains.

/thread.

[danhr]

Originally Posted by SK360

Another thread crying about dyno numbers.

Dyno numbers are for internet racers.

Go to the track and see the gains.

/thread.

this man speaks the truth. listen well young ones.

[motorhead]

That's why I dropped on a supercharger. That's the cheapest HP mod you can do looking at cost per hp ,and you know it works. To me the other stuff is just a waist of money unless you open up the motor which is very spendy.

[SK360]

Originally Posted by motorhead

That's why I dropped on a supercharger. That's the cheapest HP mod you can do looking at cost per hp ,and you know it works. To me the other stuff is just a waist of money unless you open up the motor which is very spendy.

Boltons are certainly not a "waist" of money and are required to get the most out of more intense modifications.