Bought my first DSM; Need a few tips

[Gabe92RTTT]

Hey guys,

I scored a '93 Talon TSI FWD on Saturday and just got it registered and everything. It is gray with maroon trim and red interior (ack), but I will definetly repaint it in the future. It is a 5spd with 42k miles on it and it has an HKS intake system.

It does need some work and has some problems, maybe you guys have had similiar problems and can tell me what the most likely cause is before I buy a bunch of parts. I am not new to turbo cars, I own a 92 Stealth that is heavily modded, but this little sucker seems to react differently.

Prob 1: Shifter

Shifter popped out of 5th on the drive to my house. Doesn't move around when I let off/on the throttle. Did a search and I will be tightening the nut the usually comes loose this weekend.

Prob 2: No top end power

The car has nice pep and is responsive in low RPMs and low low boost. Once I go above 4k rpms and try to go anything more than ~50% throttle, the car revs and boosts but doesn't seem to go anywhere. It hesitates a bit but just has no power. It felt like spark blow out to me, but I changed to NGK coppers and gapped them down and used some magnecores. I check for vaccum leaks as well and couldn't find any. The only thing I can think of is the HKS intake (has a MAS built into it) is jacked up and missing counts under higher flow?? I have a couple MAS on the way.

Prob 3: Exhaust Manifold

Yeah its got a big crack on the top of it. I welded a bead on it for the time being until I can get a 2G.


The main problem I would like to fix ASAP is the studdering/no power at higher boost. Does this sound like spark or a bad MAS? I don't want to go buy coil packs and a transistor pack if I don't need them.

I purchased a K&N open element filter and am awaiting the MAS to install it. I have a TMO datalogging system, but don't want to take the cable out of my car, so I will order one for the Talon. I plan to add a MBC, boost guage, some 3000GT wheels w/ 225s, and possibly an exhaust system.

Thanks for the help and I look forward to learning more about these cars.

 

[Talon96tsiAWD]

well if your rpm's increase rapidly without gaining any speed, then that would be clutch disc related.

 

[98RedGs]

Originally posted by Gabe92RTTT

Prob 1: Shifter
Shifter popped out of 5th on the drive to my house. Doesn't move around when I let off/on the throttle. Did a search and I will be tightening the nut the usually comes loose this weekend.

Prob 2: No top end power
The car has nice pep and is responsive in low RPMs and low low boost. Once I go above 4k rpms and try to go anything more than ~50% throttle, the car revs and boosts but doesn't seem to go anywhere. It hesitates a bit but just has no power. It felt like spark blow out to me, but I changed to NGK coppers and gapped them down and used some magnecores. I check for vaccum leaks as well and couldn't find any. The only thing I can think of is the HKS intake (has a MAS built into it) is jacked up and missing counts under higher flow?? I have a couple MAS on the way.

Prob 3: Exhaust Manifold
Yeah its got a big crack on the top of it. I welded a bead on it for the time being until I can get a 2G.

The main problem I would like to fix ASAP is the studdering/no power at higher boost. Does this sound like spark or a bad MAS? I don't want to go buy coil packs and a transistor pack if I don't need them.

Prob 1: Sounds like the clutch or the syncro's aren't fully engaging on the car. Change your tranny fluid and do a good flush on it and put in some PENZOIL SYNCROMESH. Don't worry, its the same thing as B&G syncroshift... just cheaper.

Prob 2: How does your intake have a MAS built into it? Which NGK's did you go with? LINK Try those wires if you are looking for others, I've heard a couple horror stories with Mag wires. LINK These plugs are good to, but make sure to gap them correctly.

Prob 3: Nothing else yah can do but pray. O, and save for a new one.

 

[Gabe92RTTT]

The clutch is just fine, my RPMS increase as normal, just the power gets cut off after a few psi from what I can tell. Like the A/F mix is messed up or their is missing spark. Thanks for the links on ingnition components...I am using the BRP7ES plugs, but after switching the wires and plugs from what was in there, I couldn't feel any difference.

Well, I searched online and saw pictures (how to install the K&N open element and replace the airbox) on a site of the stock MAS and it is completely different than mine...but my DSM friends locally said the HKS intake has its own MAS integrated...that is why it is so expensive. I took it apart and its got a green mushroom filter that is connected to its own round air box. The mas is inside this box. It then connects to the turbo intake hose.

 

[Talon96tsiAWD]

ahhh, that hks super duper flow enormous can is junk. Twenty5psi on here has that, well i should say, (had) that, and it was a pain in the ass.

 

[Eclipse96Ryder]

hey what is it boosting to???

you might have a boost leak or something, my car started losing crazy power up top also, my boost gauge was still reading normal boost and everything tho. so i went outside and my intake pipe was disconnected on the bottom to my turbo. Fixed that and it still wasnt getting any power up, so I went and looked again. I could hear air coming from my uicp, so i looked and there was a HUGE leak in my intercooler piping which was allowing air to escape rapidly.

It sounds like a boost leak to me, check it out and see if everything is tightened down and theres no cracks or holes in all your piping. oh ya, and if your looking for another intake just go here..

www.dejontool.com they have nice stuff for our cars.

 

[Gabe92RTTT]

Yeah that HKS can is junk. I have even heard that the foam can get brittle, break off, and get sucked into your engine!!

I can't say exactly how much boost I am getting because I don't have an accurate guage in there, just the stock one....but the odd thing is the stock guage doesn't even peg max. I will make a pressure tester for the system this weekend. I thought it might be timing, but at idle it as 10*. I couldn't check the base timing because I couldn't find the grounding points; since then, I have found them so I'll check it.