weak points in drivetrain?

SoSlow · 05-26-2007, 11:10 PM

say with the built motor and a bigger turbo...i'm looking to make about 450whp..

from my understanding, only first gear is weak in the stock trans right? so i can just go easy in first gear and be fairly safe? anything else i should look into?

UrS4boy · 05-27-2007, 06:21 AM

UrS4boy · 05-27-2007, 07:23 AM

SoSlow · 05-27-2007, 04:31 PM

i can use stock injectors with a gt35/40r, right?

SoSlow · 05-27-2007, 04:43 PM

too much money!

UrS4boy · 05-27-2007, 05:38 PM

the clutch. If you had a wide first gear, say in an RS2 tranny, and a good strong clutch, then the next weak point is the rear diff (it can blow up during a hard launch, once nothing else breaks ahead of it).

Straight answers to your question.

Re: injectors, I think the answer is a big NO. But you should ask it as a separate post/question to keep the thread clean.

IMHHEO

UrS4boy · 05-27-2007, 05:42 PM

I learned about launching and clutches the hard way in the first 3 or so months of owning my 93 S4 (back in 1998).

New clutch, installed = $1000 back then.

alpinab7 · 05-27-2007, 07:00 PM

UrS4boy · 05-27-2007, 08:50 PM

That sometimes people don't want to hear?

Probably.

SoSlow · 05-27-2007, 11:54 PM

05-27-2007, 06:21 AM	#2
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Clutch __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

05-27-2007, 07:23 AM	#3
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	and if you get that sorted, and you do a big launch, then the rear diff. Ask Nick. __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

05-27-2007, 04:31 PM	#4
SoSlow AudiWorld Senior Member Garage is empty, add now Join Date: Apr 2005 Location: iraq Posts: 4,566	sorry, is this sarcasm? yes, i'm going to have the motor built with a monster turbo + stock clutch i can use stock injectors with a gt35/40r, right? __________________ hairy nipples

05-27-2007, 04:43 PM	#5
SoSlow AudiWorld Senior Member Garage is empty, add now Join Date: Apr 2005 Location: iraq Posts: 4,566	i wouldnt be able to launch anyways because i dont have much interest in changing the trans too much money! __________________ hairy nipples

05-27-2007, 05:38 PM	#6
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Not sarcasm. Straight answer to your question. After 1st gear the next drive train weak point is.. the clutch. If you had a wide first gear, say in an RS2 tranny, and a good strong clutch, then the next weak point is the rear diff (it can blow up during a hard launch, once nothing else breaks ahead of it). Straight answers to your question. Re: injectors, I think the answer is a big NO. But you should ask it as a separate post/question to keep the thread clean. IMHHEO __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

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05-27-2007, 05:42 PM	#7
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Being able to launch hard and deciding not to are two different things. I agree on the $$$ issue. I learned about launching and clutches the hard way in the first 3 or so months of owning my 93 S4 (back in 1998). New clutch, installed = $1000 back then. __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

05-27-2007, 07:00 PM	#8
alpinab7 AudiWorld Super User Garage is empty, add now Join Date: Dec 2001 Posts: 2,445	I was going to say clutch too. But given that Forgie has a tendency to...well...

05-27-2007, 08:50 PM	#9
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Well, what? Give straight answers to questions? That sometimes people don't want to hear? Probably. __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

05-27-2007, 11:54 PM	#10
SoSlow AudiWorld Senior Member Garage is empty, add now Join Date: Apr 2005 Location: iraq Posts: 4,566	also can anyone with a built motor + stand alone shoot me an email, i have some questions __________________ hairy nipples

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05-27-2007, 11:54 PM
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