Turbo Boosting and Open Track questions?

[Turbojunkie]

Hey guys

I have been lurking around here for a while now and i have some questions i have not found clear answers to in the forums. I'm about to buy a 1g DSM and i plan on it being my daily driver but i also want to be able to take it to Road Atlanta for open track days as well (also remember that this car will sit in Atlanta traffic every afternoon too). I have been looking at the different turbo that people use and i figured that i would need to get either the EVO16g, 20g or T3/T4 hybrid but i'm not sure exactly where these turbos make boost in the rpms. I want boost quickly (3000 or so) but i also want to make some serious power (+/- 400 whp). Also i don't want this car to eaily overheat at the track or sitting in traffic (15 miles in 35 minutes). Does the stock cooling system handle the job or would i need to upgrade the fans and radiator (i do plan on using a FMIC). Lastly is there anything else i need to get this car really ready for some open track events. I plan on doing the big brake upgrade, coilovers and some bushings, but what i'm really asking about is the things that I would need to change that is not common knowledge until you are out on the track. I appreciate all info and look forward to contributing on the board.

 

[ddavisaf]

A car can never be to cool when it comes to the track. Upgrading your radiator and fans is definatly a good idea. Removing the AC (especially the condensor) is a good idea. More airflow to the radiator. When you're buying fans you want the biggest, baddest fans you can get to fit...
Seats with harnesses will probably be required also. Depending on your times maybe even a cage. I'm not sure how that works in Atl, here it's 7 seconds flat or better requires a cage (1/8th).
Hope that helps

 

[ColdAudio]

If you are going to do slim fans, do two. Sitting in NY traffic, one 12" slim fan didn't cut it at all, car overheated within 5 minutes. Stock fan pushes ALOT of air, so I'm going back to that So you should be fine, if not better off, stock.

And 15 miles in 35 minutes? That's definitely not bad traffic

 

[Turbojunkie]

Actually the 15 miles in 35 mins. is my best case scenario. That is assuming there are no stalls and i leave work at 4pm. If i leave later or if there is a small wreck then that 15 miles can take well over an hour.

As for the track questions i guess i didn't make myself clear. I'm not drag racing; i would be road racing. I would take the car to Road Atlanta which is a 2.54 mile road course. I would get to do 30 min. sessions around the track. As for the turbo boosting question do ya'll have any input on that?

 

[gsnoturbo90]

Hey i also suggest if its going to be a daily driver/track car a good oil and oil filter, the life blood of the car. I use royal purple with a k&n filter and it seems to work great car runs smooth and is happy as could be check into it, its a little pricey but i totally think its worth it

 

[gsnoturbo90]

also about the turbos sorry bout getting side tracked

14b-stock come with the car
16g small- good turbo decent power
16g big- good little more power
20g - great power

If your looking for track racing and want constant boost iwould go with the 16's probably the smaller one, takes less time to spool more power through the rpm's. When your road racing huge horse power isnt the main concern though, defintly look into a butt load of suspension parts, your car could go a million miles an hour but if it cant turn your gonna loose. Also look into lighting up the car with a carbo hood and maybe lexan back window.

 

[ddavisaf]

16G won't give you the power you're looking for on those straight aways, and a 20G will lag a bit much for your liking. I'd recommend an 18G from Forced Performance. It's the best of both worlds, good spool time with a good amount of kick to it.

 

[Turbojunkie]

OK but what kinda of spool rpm do the 16, big 16, 18 & 20 have. I figure that if i have the motor in the 3000+ rpm range when i'm entering/exiting turns then the spool time would be minimal compared to what it would be at a dead stop. Also this is a DAILY DRIVER so i think i'll pass on the lexan windows. It WILL have A/C as well. I'm not building a track only car, but it will see track duty. I have already planned on doing the full coilover suspension, brake upgrade, bushings, etc. The car will also see some drag strip time as well but i'm not building it for the strip.

 

[ddavisaf]

Full spool on the 18g is just over 3k. I'd say 3100-3200. Mines clipped so I hit full spool around 3500-3700.

 

[macna]

I was just reading this and had questions about the 18g. Compared to the HX35, do they spool about the same? Or will the 18g spool sooner?

They both hit pretty hard, but the 18g flows about the same?