FP 18g 6SL2 Reviews

[BringBackDSM]

Im a newbie/lurker still so I cant post in any of the other threads on this.

Wow was I impressed though. Im still breaking in the motor though(almost stock 7bolt).
I heard some guy say that you wont even feel more power then the t25 until you get 20+ psi, and I now find that comment incredibly ridiculous, he must not know how to tune. Im only running 12psi, and it pulls quite a bit harder then the t-25 at 17psi. I got some work to do though. Im running a keydiver chip, but I can smell the exhaust and tell it is running rich. I need to fine tune with the afc. Im getting full spool at 3500, which I know can be improved with some work. I just can't wait to break the motor in and turn it up to 20.

Any comments or questions welcomed. Also please post your reviews here too.

 

[My1GLaser]

I have this turbo and I love it. I have just fixed quite a few boost leaks and I had 2 turbo to mani bolts loose so my numbers are lower than what I expect to see this Sun at the track.

I don't know when I hit 20 psi, but I hit 26 psi at 3800-4000rpms, but DSMLink shows about 30 psi which is probably closer to what the turbo was putting out with the leaks. No shaft play after running it like this for 3000 miles! I just tuned around the leaks until I got around to fixing them.

Do you have the ability to add timing in the lower rpms like suggested earlier? It makes a huge difference on spoolup. I am boosting as soon as I touch the gas in every gear, literally. I have to barely accelerate to keep the boost gauge below 0psi. If I press it at all, my AFR drops to 11ish and I am already boosting. I have a sh_t-ton of timing down low. I am running 20* timing all the way from idle to redline on 9:1 CR and ~11.5 AFR. (been having alt voltage issues and unstable AFR after full boost...just fixed my alternator today though)

I think I can get an 11.90 after all the things I fixed the last 2 weeks. I will post back...maybe even after I street tune with a couple 3rd gear pulls tomorrow when I put the alternator back in.

I will run 28 psi this weekend once I make sure my tune is on. Whatever it takes to get an 11.90 on my last track run this season!

 

[shaunp]

I've had this turbo for longer than I can remember. Personally I've gone 12.2@114, and thiswas done with the stock side mount and no cams.

My car has over 100k miles and an exhaust leak and I still get full spool before 4k. Great turbo, but time for something bigger!!!

 

[My1GLaser]

I did some tuning today and made one full 3rd gear pull with some great results. I got a 1.67 sec 70-90 mph. This was at 27 psi. I should be able to get 11.7-11.9 @ about 120 mph tomorrow. I am still losing voltage from my alt at WOT, but I am not knocking even at 12:1 AFR, so I will give it a run and tune around it if necessary.

Full boost is still 4000 rpms. I am at 20 psi around 3500, so it is not laggy by any means.

 

[hiimnotcool]

yup. dope turbo. i'm too scared to go WOT most of the time. pshhhhh.

 

[kqodprez]

This turbo sounds like what I'm looking for. Does anyone else have any dyno graphs with mods to give more info. I checked out the link up top but that was at 14 psi. Looking to put her in the the 20-25 psi range on pump. Thanks for the feedback so far!

 

[boosted86]

anybody getting full boost under 3800rpm, has a fast spooling turbo in my opinion. if you absolutely must shorten spool up time, i would recomend two things. 1; raise your timing curve in the lower rpm ranges. 8* before 3k is nice ( knock permit) or higher compression pistons...my 0.02

also the 18g is a sick turbo. a buddy of mine had one and was able to extract 446 whp at 25lbs. not bad.

 

[->PrOjEcTGS<-]

I personally help Whophlungpoo wrench and tune on his car. The link he gave making 284 hp was at 14.5psi and on pump 91 octane fuel. He has switched to E85 and put down 390hp @22-23psi. Lately he's been running anywhere from 26-30psi but we have not been to the dyno lately. I think he's running out of pump since his AFR is a little bit lean... Full spool by 4k and it pulls hard to redline.

 

[AlaskanDsm]

The 18g-6SL2 means it is a 18g compressor with a TD06SL2 turbine. It uses a 7cm2 turbine housing. So to answer your question yes. It is 16g with better top-end, but slightly more turbo lag. OR it's a faster spooling 18g. Any way you want to look at it.

It is also a direct bolt for the 1g. Meaning, you don't need to change anything BUT the turbo. Not need to replace (or kink) oil/coolant lines. No need to put on a compatible exhaust manifold or O2 housing. Just slap it on and you're ready to go.

Of course, watch you boost levels as this sends more air in per psi.

I appreciate that!

Since this is a direct replacement as I have found in the past, My real question to all of you turbo heads is... If I were to buy this turbo to replace my 14b turbo with no supporting mods, NOT to use as a larger turbo to gain power, but to be able to feel comfortable driving from Alaska all the way to Phoenix with, would that be ok? I would be cruising at like 55-70 MPH and running the turbo on the stock wastegate boost with no boost controller.

 

[->PrOjEcTGS<-]

I don't see why you would have a problem. The only reason to worry would be if you planned to run more than stock boost out flowing your injectors' and fuel pump's ability. Keep it low and you shouldn't have anything to worry about.

 

[AlaskanDsm]

thats what I was thinking but I just wanted to hear it froma few other people first. I just don't trust the turbo that I got with the engine that came with the car. I don't know anything about it and I was guessing it has probably near 100,000 miles on it for average. The other thing I was thinking was with the larger turbo and much larger turbo spool, I might actually get better gas mileage as well over the lower boosting of the 14b.

 

[My1GLaser]

I wanted to reply back even though I do not have good results. Somehow between last night and the track today I developed a big boost leak that you can audibly hear from inside the car. I can only build 20psi in 1st, 24 in 2nd and 27 in 3rd, and it falls off to 20-22 very fast in 3rd and 4th.

So that being said, I only ran a 12.5 @110 with a best 70-90 of 2.18. The boost leak is killing me and I just tested and fixed everything the other day. It was running great and I only drove it one day, did the 3rd gear pull with the 1.67sec 70-90, and then parked it until the track today.

 

[e85_4g63]

Any updates on your cars guys? I see FP has lowered the price to $699.

 

[Dsmj89]

Has anyone had any boost creep issue with the fp18g turbo ?

 

[->PrOjEcTGS<-]

I'm guessing most people that run these turbos don't try to run them at 15psi where the wastegate has to work extra hard to keep the boost pressure down. The one I have experience with we run at 28-30psi. Therefore, I guess you could say we don't have problems with boost creep.