driftguy2008

hey guys i never ran my car down the 1/4 mile so i have no ET but how much HP do you think my 91 makes its in my sig and once i install my GT40 intake i have in my shop how much with that add?

cmc87

Right now it makes 225HP at the flywheel. With the intake added, 240HP flywheel. Both are very generous numbers. You have a stock engine with a cold air intake, so basically you have stock power levels.

bluebeastsrt

Yep your not making a ton of power. But I bet you could still crack low to mid 14 all day on a 5 speed car.

tinman

Run it at a 1/4 drag strip then let me know the mph and I can tell you real close what the HP is.....
I'm thinking it's about225HP right now.

driftguy2008

Hey guys i let my dad borrow my 91 last night he has owned more mustangs then I can shake a stick at and he current mustang is being worked on so he wanted to have fun and drive mine like he stole it I only gone to 7k then shifted before I got my monster tach in. My dad thinks I have a aftermarket block he launched it twice shifting at 6,500-7,000rpms threw the gears and he's telling me a stock block would have blown doing what he was doing so my new question is how do I tell if my block is oem or aftermarket?

mjr46

^^^I seriously doubt you have an aftermarket block, look on the underside of the block towards the back on either ear, I bet it is a e7te stamping in the block = stock stock block + stock cam = 6500 shifting a waste, rarely are they making power past 5500-5800 irregardless of what the azzometer feels. and a few rpm pulls up to those ranges will not blow it, I run my 347 up to 6800....done it tons, keeping a stock block in or around 6500 and it will live for a good while

luckythirteen13

WTF? Why would you dad purposely do something to your car he expected would ruin it

driftguy2008

He just wanted to go fast that day I guess he wasn't trying to break anything even thou he could have. When I was younger I was 10 times worse then him with a 87 4cyl foxbody I used as a farm vehicle I was young and dumb when we got the car no rust nothing wrong with it under 60,000 miles and I destroyed it to we're you couldn't take a part off it that wasn't destroyed. And I've learned over the years and I take care of my cars now.

darkmach1

Your dad must be the most interesting man in the world......only he can get past the factory 6250rpm rev limit.

driftguy2008

I have msd and I have have seen 6,700rpms I didn't install the msd so I have no clue what it's set to I never messed with the dials on the side of the box. I know my dad wouldn't lie to me so I know he was telling the truth. I only went past 6k once i don't like going past 6k cause I haven't been into the motor so I keep it on the safe side.