just got back from the dyno

[MuscleInc1320]

300 hp minimum for the top end kit. isnt that setting the bar a little to high. if i am wrong correct me but 5.0l didnt come from the factory with high hp. at best they were rated 215-225hp at the crank so with an avg. 15%-25% decrease in in rwhp they would make about 190ish hp at the wheels completely stock. so a 100hp gain at the wheels from a HCI and tune with stock internals? to me the 70hp gain i got seems reasonable

 

[Inspector13]

Netting only 260 I think you have something really holding you back in your set up. Mine made 260 rwhp with a TFS top-end kit with a stock bottom-end, stock air intake tube w/ K&N cone filter, shorty headers, stock cat-back, and a failing ignition box (ignition was breaking up so bad it wouldn't even rev past 4300 rpm).

 

[94opalgt]

300 hp minimum for the top end kit. isnt that setting the bar a little to high. if i am wrong correct me but 5.0l didnt come from the factory with high hp. at best they were rated 215-225hp at the crank so with an avg. 15%-25% decrease in in rwhp they would make about 190ish hp at the wheels completely stock. so a 100hp gain at the wheels from a HCI and tune with stock internals? to me the 70hp gain i got seems reasonable

not setting the bar a little high. dude, you just spent $2500 on that kit correct? no way you should be happy with 260. you coulda spent 600 on a NOS kit and made that and saved $1900.
depending on suporting mods, i.e. headers and exhaust, throttle body, air intake kit, injectors and if you have an auto or manual, 300 is not to high. and you have to make sure that when you put the lower on, the gasket's didn't slide down and partially cover the intake ports, 300 shouldn't be an issue with a good tune.
on my old setup i made 299 to the tire with a stock cam, trickflow heads, 1.7rr's, track heat intake, equal length shorties, off road h, flows, pullies, 30# inj, afm power pipe and a 90mm pro-m meter through a 5-speed.

 

[MuscleInc1320]

well when i get some more time i will go back through my motor and double check everything. i just honestly didnt expect 100 hp from the kit. i do notice a suction type of noise when i step on the gas while driving. not sure if that is normal. the idle is a litte rough too ever now and then. then again there doesnt feel like there is any hesitation when driving so idk. on monday i am going to go back down to the shop to talk to my mechanic about some of this stuff.

 

[MuscleInc1320]

 

[Inspector13]

Your graph looks pretty good. Nice A/F. Not saying it is something wrong with your car, but maybe something is holding it back some. Like your manifolds, or your TB, or something. I don't know what mods you have.

 

[94opalgt]

what is a jet and venom performance module? i just read your sig. when you had the car on the dyno was it tuned and a chip burned and installed? or did you just buy an over the counter chip from summit and stick that in there? hopefully you had it tuned with a sct chip burned. if not that could be your whole issue.
that and that bbk CAI. LOL.
do yourself a favor and get either a anderson ford N/A power pipe, or a jlt cai for your car. those bbk ones are JUNK. oh yeah, and go a lil bit bigger on the throttle body to 70-75mm. what cat back are you running?

 

[Venom351R]

The cats are holding you back too. I can almost guarantee that every car that hit 300 w/ this top end kit had an O/R H or X pipe

 

[LAFENATU]

Why is everyone so crazy about numbers?

Track numbers and dyno numbers are compltely different.

 

[OnyxCobra]

Why is everyone so crazy about numbers?

Track numbers and dyno numbers are compltely different.

cause it's easy to dyno a car and a lot of people can't drive their cars for shit at the track lol. Dynos provide instant bragging rights and gratification... if your car does well enough.

 

[Paul]

The cats are holding you back too. I can almost guarantee that every car that hit 300 w/ this top end kit had an O/R H or X pipe

Stock cats perhaps, but not an aftermarket hi-flow catalytic x-pipe. I've seen back-to-back dyno numbers with and without cats on a HCI 302 with TFS heads, TFS1 cam, and GT40 intake - they were within 1 hp of eachother and the offroad pipe actually lost torque.

 

[Paul]

Oh, and I agree with Rob. Dyno numbers mean crap.

 

[RJDCobra]

did we ever determine if this was a mustang dyno or not? numbers seem right if its a mustang dyno. but to be honest those numbers do seem low if not.

for whats its worth my 1994 cobra has
oem 5.0 bottom end , trick flow twisted wedge heads, cobra intake, lt headers, aftermarket cam, 24#injectors, 70mm tb, 73mm maf, pulleys, and went 308rwhp and 324rwtq in 100 degree texas heat.

 

[Venom351R]

The cats are holding you back too. I can almost guarantee that every car that hit 300 w/ this top end kit had an O/R H or X pipe

The stock care are definetly restrective but isnt there High Flow Cats and then ones that are not high flow?

 

[Venom351R]

Why is everyone so crazy about numbers?

Track numbers and dyno numbers are compltely different.

Yes they are but a certain power number will only get you so far before you have to do other mods such as weight reduction and suspension. Some people dont want to do that so they go for the power numbers if they have a certin goal they want to hit at the track. Not saying this is the case but Im just saying that yeah sometimes numbers do mean something to some people. Other times there is no track goal at all and they just want a certain dyno number as a goal to reach, and for those people there is nothing wrong w/ that

 

[MuscleInc1320]

numbers dont mean all that much to me just with everyone saying that i should have 300rwhp has had me thinking. as for cats go i am running high flow magnaflow cats with a bassani x-pipe. i dont have the jet chip or venom thing any more. i just forgot to update my sig. i had a sct chip burned when the dyno tune was done. do you guys honestly thing that power pipe would make that big of a difference? oh and as for the a/f ratio on my dyno chart, does that look alright? i do know that i need a bigger k&n filter, the one i have now is way to small but i got it for free a couple years back so i cant complain lol as for other mods i will update my sig so you guys can check that.

 

[MuscleInc1320]

i was looking at the dyno chart again and i noticed that it was like 100 degs outside that day. do you think that temp could play that big of effect with the dyno results?

 

[mikey94gt]

Depends on if its altitude corrected or not. It could have.

 

[Venom351R]

numbers dont mean all that much to me just with everyone saying that i should have 300rwhp has had me thinking. as for cats go i am running high flow magnaflow cats with a bassani x-pipe. i dont have the jet chip or venom thing any more. i just forgot to update my sig. i had a sct chip burned when the dyno tune was done. do you guys honestly thing that power pipe would make that big of a difference? oh and as for the a/f ratio on my dyno chart, does that look alright? i do know that i need a bigger k&n filter, the one i have now is way to small but i got it for free a couple years back so i cant complain lol as for other mods i will update my sig so you guys can check that.

how much power did you pick up from the SCT tune? Where did its start out at after you finished at 260? The power pipe wont make that huge of a differnce, it will help but not make up what you think you should be getting. The temp will also lower your number. If in fact you should be getting 300RWHP your missing 40RWHP somewhere but the pipe and the tempature wont dimish your numbers by that much.

I picked up 27RWHP and 43FTLBS of TQ when I had an SCT chip burned for mine. It all depends on how out of tune it was to start with though. Im going back for retune next weekend as well.

 

[Inspector13]

The cats are holding you back too. I can almost guarantee that every car that hit 300 w/ this top end kit had an O/R H or X pipe

Stock cats perhaps, but not an aftermarket hi-flow catalytic x-pipe. I've seen back-to-back dyno numbers with and without cats on a HCI 302 with TFS heads, TFS1 cam, and GT40 intake - they were within 1 hp of eachother and the offroad pipe actually lost torque.

That is why you get a prochamber O/R H-pipe.