how do i make my car faster ( not as nubby as you think..maby..haahha)

[F1reBird]

ok so i know it sounds extremely ricey, but how do i make my 84 760 T go faster. heres the problem... i reach my "top" speed of 85 ish extremely quick ( thanks to 13psi) but after that it takes 1-2 Mins at WOT to get to 94~5ish and then thats its max. speed trap on 1/4 is about 88 mph stock and its still 88ish mph after the boost increase. wen i increased my boost i felt the whole entire powerband just change ( probably got more torque than hp) but technically with increased power shouldn't my top speed be raised?. what is going on/ what can be done so i can 1) get a higher top speed 2) decrease my cruising to topspeed acceleration time and 3) make my self sound less ricey:oops:
any help would be appreciated..TIA
-Allen:oops:

[SwedishFish]

check your cam timing it might be off, that kept my car under 105, after fixing it 120+ was easy

[linuxman51]

check your cam timing it might be off, that kept my car under 105, after fixing it 120+ was easy

baaahahahahahah yeah it did, that **** was hilarious. wild intake noise and no power, never heard anything quite like that before or since

[Poik]

Wow somethin is wrong for sure, I did 115 with 2 friends in the car and had to stop cause was running out of road. That was just with an MBC ~10psi and nothing else. High speed + stock Volvo = Scary.

[dhallilama]

does it seriously take 1 minute to go from 85mph to 95mph?
mine, as it stands today, running on 3 cylinders... it tops out at ~94mph (indicated, but it's close). when it was running on 4, it hits 120+ mph... even when it had 13psi (went up to 16psi, which is why im now only running on 3 cylinders :) )

like above, i say checking the cam timing could be a good idea...

just a shot in the dark, but are any of your brakes dragging? (had the e-brake slightly drag in an old bmw of mine... killed my top speed, took ages to figure out what was wrong)



side note: really starting to dig the wheels in your sig... keep seeing them at the parts yard... might have to pick up some next time

[SwedishFish]

baaahahahahahah yeah it did, that **** was hilarious. wild intake noise and no power, never heard anything quite like that before or since

"Damn, this EST intake kit is HELLA loud!"
"Hmmm, intake and 16 pounds of boost, why is it slower than stock...hmmm"
"Damnit Stan! Ya ****ed up my cam timing! :pow:"
ahhahaha

Yeah I washed an 88 740 GL the other day, had those rims on it, I really really dig em.

[badvlvo]

My 744 did 136 in Washoe Valley, out of gear, at redline.

[benflynn]

i have done 118 in forth w/kayak on top, 5th solinoid is dust

[Dauntless]

Yeah definately something wrong man. My NA does 110+ easily, and it's currently stock.

[F1reBird]

yea it does take about 1 min. to get up to 95 from 85 ( 45 seconds maby..).. oh heres a nooby question.. ive never heard of the term cam timing... is it just timing the car ( what you do after you change the timing belt):oops:
-Allen

[SwedishFish]

yea it does take about 1 min. to get up to 95 from 85 ( 45 seconds maby..).. oh heres a nooby question.. ive never heard of the term cam timing... is it just timing the car ( what you do after you change the timing belt):oops:
-Allen

Oh Lord...
Nobody?
Guess I'll take it...
Okay.
Do you know what a piston is?
Do you know what valves are?
Do you know what a camshaft is?
The camshaft is timed by the cam belt to rotate along with the crankshaft. It is a long stick with lobes on it which opens and closes the valves, and the valves allow the fuel/air mixture into the combustion chamber and allow the burnt mixture out the exhaust. The valves are located above the pistons and the cam is located atop the valves(in our Volvo motors at least). If the cam is out of time with the crankshaft the valves will be opening and closing too early or too late for the proper combustion of the mixture and therefore you will not get the power you so deserve. Find a local turbo bricker(or any gearhead really) who can help you with the visuals, it's much easier to understand when you're looking at it and someone's explaining it to you face to face.
Forgive me if you are confused.
howstuffworks.com might be a little easier for you to understand young Padawan.

[BDKR]

When you get down to it, this should be moved to maintenance & nonperformance.

[F1reBird]

Oh Lord...
Nobody?
Guess I'll take it...
Okay.
Do you know what a piston is?
Do you know what valves are?
Do you know what a camshaft is?
The camshaft is timed by the cam belt to rotate along with the crankshaft. It is a long stick with lobes on it which opens and closes the valves, and the valves allow the fuel/air mixture into the combustion chamber and allow the burnt mixture out the exhaust. The valves are located above the pistons and the cam is located atop the valves(in our Volvo motors at least). If the cam is out of time with the crankshaft the valves will be opening and closing too early or too late for the proper combustion of the mixture and therefore you will not get the power you so deserve. Find a local turbo bricker(or any gearhead really) who can help you with the visuals, it's much easier to understand when you're looking at it and someone's explaining it to you face to face.
Forgive me if you are confused.
howstuffworks.com might be a little easier for you to understand young Padawan.
haha yea i know what those are and how they work.. what i was asking was isnt cam timing pretty much the same as timing belt timing.. because the belt is what drives the cam.. like you said; so its on que with the crankshaft. and the cam is connected to the camshaft.. and the only timing i've ever heard of is just referd to as.." lets time my car" or " we just replaced the belt lets time it"..and so i was wondering if "cam timing" and when they usually refer to timing is the same:-P
-Allen..ps sry for my confusing questions..hahahaah

[volvo-slyder]

dude we drive around boxes, going past 100 is pretty fast in a square with tires

[Sp3aK]

^^ Yes but I was told that the aerodynamics of the car aren't as bad as you think and 100+ really isn't THAT big of a deal.

I don't really have anywhere to test the upper end limits of my car, it gets to 60 pretty fast from a stock, it'll do 55-95 pretty fast as well, but beyond that there is either no where that is straight enough and the chance of cops is too great.

Another thing to help diagnose the car, go put it on a Dyno somewhere and look at the graph to see what the power/torque is REALLY doing. And go to a DynoJet, not a freaking mustang dyno. You know, Civic guys think their car got SOOO fast because of their chrome-air-intake, red spark plug wires, and a loud exhaust.

[Big Lan]

and the only timing i've ever heard of is just referd to as.." lets time my car" or " we just replaced the belt lets time it"..and so i was wondering if "cam timing" and when they usually refer to timing is the same:-P
Sounds like you may be confusing cam timing, or phasing, with ignition timing. Cam phasing works as described, but ignition timing determines the relationship of spark with the position of the pistons, and you don't have to disassemble anything to change it. The cam phasing plays a role in the ignition timing, and when a cam is removed and replaced, you need to set the ignition timing afterwards, and that is what is being referenced by the generic term "timing".

And for the record, my car has no problem getting above 100, and it sure doesn't take a minute to get there, totally stock.

[Hank Scorpio]

Sounds like the cam is off a few teeth

[mikep]

When you get down to it, this should be moved to maintenance & nonperformance.
As far off topic as it is, it should go to OT.

[badvlvo]

This car needs to have the cam timing checked.

My 1973 144 4spd would do 100 easy, even with 394,000 miles on it. It DID however smoke like a mother.

[Hank Scorpio]

As far off topic as it is, it should go to OT.

go for it. No objection from the peanut gallery

[243_Phantom]

btw: those wheels are "Nova." They're 15x7? I had those on my '84 760 Tic (still have them)... Which went 120 no problem at stock boost, until the #3 rod decided to go through the block. Did that with my '86 740 Tic also. Maybe I should learn how to drive.

[The Aspirator]

Sooo, have you check the ignition timing (with a timing light) on your car yet? If the ignition timing is too retarded it will kill some power and top speed. 85-95mph tops is pathetic with a turbo, something is wrong y0! Adrian's '78 N/A hoopdie wagon was holding with me at 105 last summer.... Oops I said too much. And holding at WOT for a minute is going to create a hell of a lot of heat, probably making your turbo glow like a lantern and raising your coolant temps super high, so watch the temp gauge next time.

So it's boiled down to two possibilities, could be other things, but these are the obvious ones. Your ignition timing is off, hit it with a timing light and rotate the distributor to change it (should be 12* at idle right?). OR your actual timing belt is installed wrong, meaning your camshaft is not "timed" properly compared to your crank. Has the timing belt been touched recently?

[Maxspeed]

They do make an adjustible cam gear if all else fails.

[Dauntless]

I wouldn't use an adjustable cam gear to mask the problem. I'd fix the problem.

[Big Lan]

Actually installing the cam gear would lend the opportunity to fix the problem, which would make installing the adjustable gear unnecessary, though it would give that extra adjustability after correcting the cam phasing.

[stylngle2003]

those wheels are ACTUALLY called Sirus, and are 15x6...

[F1reBird]

ok i just timed the car.. everything is A ok.. are there any other possibilities for this to be going on???!!!

[Big Lan]

ok i just timed the car.. everything is A ok.. are there any other possibilities for this to be going on???!!!
Are you talking about ignition timing or cam phasing? I assume you mean ignition timing and that "everything is A ok" means that your ignition timing was good, though it also implies that your car runs better. Your next sentence, however, implies that you're still having driveability issues, which means that everything is NOT a-ok. So pull the timing belt cover and get to checkin'. Might as well change the belt while you're in there.

[The Aspirator]

What's your ignition timing at idle? Should be 12*.

[F1reBird]

i checked the ignition timing; it was 12.. so what i mean is... ignition timing is not the problem.. is there any other possibilities for my cars "sickness"? TIA
-Allen

[745 TurboGreasel]

cam timing?

exhaust restriction (bad cat or kinked s pipe)?

[SwedishFish]

sawzall your exhaust
check you cam timing already!!!!!!!!!!!!!!!
if that doesnt' work then you're ****'s ****ed up

[F1reBird]

ok now this is newby:oops: ... how do you do cam timing.. im readign it online and some people say its complicated.. however... thier not volvo specific..any help would be greately appreciated.
-Allen

[The Aspirator]

Read this enough times till you understand it:
http://forums.turbobricks.com/showthread.php?t=25185

[Slobodan]

maybe its your AMM, You have LH 2.1 and it uses the 002 AMM. They can get weak over time and this could cause your car to not respond very well. I was once just like you. a newby. you know what I did.. I did an engine swap and learnt a WHOLE lot. just start taking stuff apart. make sure you have a full tool kit. gloves to protect your hands from the oils and dirt. girls love clean hands ;-) but yeah, just take the front of your engine apart remember how stuff went. get a chilton/haynes manuel. Its fun.. do it.