Here are my TGP MODs and Dyno Numbers:
Mods:
Cone Intake
147,xxx Miles on motor
Dyno Results:
198.3 HP
261.7 TQ
17.5 A/F Mixture
So it is Running VERY VERY VERY rich up top. Does anyone know if a Super AFC from Apexi will work on our cars. If i lean it out up top it should gain a healthy ammount of power. The A/F mixture up top was so high it was off the scale my 3rd run. So leaning it out will make the top end pull much harder. Anyone know why i made so much power w/ only an intake. I know it would increase the boost. but not enough to put down what i did.
Shane
What are you guys dynoing at and what mods are done?
intake is one the most restrictive part on this car other than the -----> chip<---- If you haven't already scrap the cat its like 3rd on the list.
thats some sickening #'s 2. If it makes 225ehp or whp how can an intake put it almost 35-40hp over that LOL :lol: ! can you say underated power #'s! I need to dyno mine.
Quote from: 1trucavalierthats some sickening #'s 2. If it makes 225ehp or whp how can an intake put it almost 35-40hp over that LOL :lol: ! can you say underated power #'s! I need to dyno mine.
No Shyt! How did i make 36ft/lbs Tq over stock "At the crank power" w/ just an intake.... I would put dimes to doughnuts that they are very under rated. Stock HP at the wheels assuming 18% drivetrain loss should be:
168.1hp
184.5TQ
that means i am:
30.2hp over stock
77.2ft/lbs over stock
BTW my cat and my mandrels came in. I am ready to do a downpipe.
Shane
man send me some pics I got to see this!
Quote from: 1trucavalierman send me some pics I got to see this!
What do you want pics of?
Shane
lol! for some reason the reply went to the wrong post :D ! the down pipe and other parts you got in
and the part about maybe your injectors are leaking at the pintle went to the other post :D am I a post whore!!!!???
Check out the dyno runs ZachS pulled on his TGP. Got Torque?
http://www.netavalanche.com/tgp/viewtopic.php?t=318&highlight=dyno
Real good #'s and very believable. Like 1Truecav.... said the stock air box is VERY restrictive. When you just put the cone filter on the turbo spools up Much quicker and thats probably why you get a great torque spike.
On the subject of cat. converters, I put a high flow jobber on mine b4 and saw little improvement. Ditching it all together probably would show gains if thats an option in your area without inspections, but otherwise why stink up the world with horrid exhaust.
after 13/14yrs you cat may toast, thats why I was suggesting cat
Downpipe goes on this week. I BARLY passed emmisions so i am ready to get this thing leak free and cleaned up. I am going to reseal the hole top end here soon. and hopefully get an afc w/ some extra $$$ if have some.
i have not got a straight answer yet on the AFC, Will it work w/ our cars? I think it will but i want to be sure it does before i drop $300 on it.
Shane
Quite a few gm fwd j-bodies tried them and couldn't not get it to work correctly on a boosted car. Not to say it won't work on a tgp but it seems like if it was that easy jeff m would not have done so much extensive work on the chips. :?: :?: :!:
Quote from: 1trucavalierQuite a few gm fwd j-bodies tried them and couldn't not get it to work correctly on a boosted car. Not to say it won't work on a tgp but it seems like if it was that easy jeff m would not have done so much extensive work on the chips. :?: :?: :!:
I will look into it more.. I heard from someone that it would work w/ MAP based GM cars.
Jeff M's chip does more then adjust fuel. His i assume does timeing, boost and whatever else. The S-AFC Is striclty a fuel adjustement, it doesn't effect timeing or anything else as far as i know. Not to mention it would require a Dyno and a wideband OS inorder to tune properly. where as Jeff M's chip is allready designed and ready to drop into a car.
Shane
i am not really sure check the www.j-body.org board and type in afc and you will see what I mean.
The S-AFC will work with no probs, but it can be a bear to tune in properly. There is no data loaded anywhere for our cars, so it is kinda hit and miss untill you get it right. The reason I think Jeff may have put the work into the chips is because it is a simple swap and a little more cost effective. It also gets rid of some of the limitations of stock calibrations. That is the reason why people go to stand alone ECM's / He just saves us a little work and a bootload of cashola. Thanx for the hard work Jeff.
Quote from: maximageThe S-AFC will work with no probs, but it can be a bear to tune in properly. There is no data loaded anywhere for our cars, so it is kinda hit and miss untill you get it right. The reason I think Jeff may have put the work into the chips is because it is a simple swap and a little more cost effective. It also gets rid of some of the limitations of stock calibrations. That is the reason why people go to stand alone ECM's / He just saves us a little work and a bootload of cashola. Thanx for the hard work Jeff.
Sweet, thats what i wanted to hear. I am getting a topgun 160 first and if need be then the S-AFC and dyno tune w/ an wideband O2. I have a hookup locally that will allow me to tune it cheap. I am familiar w/ the S-AFC and the dyno shop is VERY familiar w/ them. tuning an AFC should not be a problem.
Shane
When I did my dyno run, my A/F was like 11:1 or 12:1. Just right. I was using a custom chip (pretty much stock except for 5 speed changes) and an MBC. I got 202hp and 275 ft lbs at the wheels. This was a pull from 3k to 5500 in 4th gear. There is a pic of the dyno sheet on my site. It shows a graph of the A/F during the run. Your richness may just be the leaking crossover or leaking injectors. I don't really think adding an AFC will help much now. These cars don't really need an AFC until larger turbos/other mods start happening. Get Jeffs chip, it's only $275 (I think) and you're done. Well worth it.
Jason
Quote from: eclipse5302When I did my dyno run, my A/F was like 11:1 or 12:1. Just right. I was using a custom chip (pretty much stock except for 5 speed changes) and an MBC. I got 202hp and 275 ft lbs at the wheels. This was a pull from 3k to 5500 in 4th gear. There is a pic of the dyno sheet on my site. It shows a graph of the A/F during the run. Your richness may just be the leaking crossover or leaking injectors. I don't really think adding an AFC will help much now. These cars don't really need an AFC until larger turbos/other mods start happening. Get Jeffs chip, it's only $275 (I think) and you're done. Well worth it.
Jason
Thats the route i was going to go.
* repair/new X-Over
* TopGun 160
then if need be S-AFC.
Shane