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Hey guys, Was doing some searching, Do you guys think I can get a similar boost profile on a 2.5L with a 14cm^2 hotside turbocharger? This data log shows 20psi by 3,240rpm.
Seems like a lot of work to fit that housing onto the 951 crossover flange. Plus the kkk6 housing is very similar in size. You could do a hybrid kkk turbo and get similar results as LR. Plus our cars don't build boost quickly enough until at least 3rd gear. 1st and 2nd gear can not build enough exhaust pressure due to low compression and the lighter load generated in those gears.
A lot of tuners on this site can build you a great hybrid using a 6 housing. If your brazen enough with your calulations, you can even call a turbo manufacturer to do it for you.
#6 housing? Is that a joke? Climb down from your dinosaur and step into the 21st century. LR turbos were great. In the 90's.
OP, I have a 14cm² hot housing with 58mm exducer. Hotside was bolt on but I had to modify the mount to accept the larger housing. I see 21psi around 3600 rpm but did a compression test on my engine and came back with 115-120 across the board. With a healthy engine and a proper boost controller I think I could match your claim or come close to it. Ive recently installed an EBC and have been playing with 25psi. Im able to still get 25 in second gear easily....and have video 😊
We are in a new age of turbo tech for these cars and impressive things are happening.
#6 housing? Is that a joke? Climb down from your dinosaur and step into the 21st century. LR turbos were great. In the 90's.
OP, I have a 14cm² hot housing with 58mm exducer. Hotside was bolt on but I had to modify the mount to accept the larger housing. I see 21psi around 3600 rpm but did a compression test on my engine and came back with 115-120 across the board. With a healthy engine and a proper boost controller I think I could match your claim or come close to it. Ive recently installed an EBC and have been playing with 25psi. Im able to still get 25 in second gear easily....and have video 😊
We are in a new age of turbo tech for these cars and impressive things are happening.
Is this a Street car? There's no way Id run that much boost on the track, at least not without running VP 110 …. and that's 10 bucks a gallon... and In one day at WGI, in an open track event I went through over a 100 Gal of fuel one time.. Not worth it.. These numbers are impressive but how long will it live? I really wish Porsche had put more head bolts on these engines...
Is this a Street car? There's no way Id run that much boost on the track, at least not without running VP 110 …. and that's 10 bucks a gallon... and In one day at WGI, in an open track event I went through over a 100 Gal of fuel one time.. Not worth it.. These numbers are impressive but how long will it live? I really wish Porsche had put more head bolts on these engines...
Yes it's a street car. Running 93oct and have been beating the **** out of it for a year and a half now. Car has 235k miles. Was running 360whp with a super 61 for a decade before the current turbo.
Head bolts? They used studs and are pretty decent but have aged for 30 years now. Ive upgraded to raceware head studs for additional support.
What I meant was there are not "Enough" studs... One more per Cyl would have been awesome.. I have Raceware Studs in two of my cars... I also Torqued them to 95ftlbs. I "Accidently" Took my car out on track one time and was hitting 25psi of boost before my engine management system shut it down momentarily... No Issues, Turned my boost back to just under 15 and away I went..
All I can say was WOW the car was an absolute ROCKET.. Over the course of 20 years of running these cars I have wasted 3 head gaskets in total... Different cars, Different management systems.. all blown in the same spot..
What I meant was there are not "Enough" studs... One more per Cyl would have been awesome.. I have Raceware Studs in two of my cars... I also Torqued them to 95ftlbs. I "Accidently" Took my car out on track one time and was hitting 25psi of boost before my engine management system shut it down momentarily... No Issues, Turned my boost back to just under 15 and away I went..
All I can say was WOW the car was an absolute ROCKET.. Over the course of 20 years of running these cars I have wasted 3 head gaskets in total... Different cars, Different management systems.. all blown in the same spot..
#6 housing? Is that a joke? Climb down from your dinosaur and step into the 21st century. LR turbos were great. In the 90's.
OP, I have a 14cm² hot housing with 58mm exducer. Hotside was bolt on but I had to modify the mount to accept the larger housing. I see 21psi around 3600 rpm but did a compression test on my engine and came back with 115-120 across the board. With a healthy engine and a proper boost controller I think I could match your claim or come close to it. Ive recently installed an EBC and have been playing with 25psi. Im able to still get 25 in second gear easily....and have video 😊
We are in a new age of turbo tech for these cars and impressive things are happening.
Not a joke at all. Housings can be honed out to accept a variety of different wheels. Including a 58mm. But if your looking for a quick spooling turbine. the 58 wouldn't be it..
Not a joke at all. Housings can be honed out to accept a variety of different wheels. Including a 58mm. But if your looking for a quick spooling turbine. the 58 wouldn't be it..
Spools faster than a stock turbo...OP is getting big boost at 3200. That's quick... especially for the size.
Yes you can hone out but why? It's so small to begin with and will only be choked out by back pressure. You end up with horrible characteristics and driveability suffers. My torque curve is FLAT, not peaky like old modded K2x turbos.
Spools faster than a stock turbo...OP is getting big boost at 3200. That's quick... especially for the size.
Yes you can hone out but why? It's so small to begin with and will only be choked out by back pressure. You end up with horrible characteristics and driveability suffers. My torque curve is FLAT, not peaky like old modded K2x turbos.
I think you may have missed it, but the Op posted a boost log from LR.
While housings do play a roll. Efficiency comes from the wheel itself and its much easier to install a kkk hybrid turbo than playing with welding equipment, flanges and mounts.
I think you may have missed it, but the Op posted a boost log from LR.
While housings do play a roll. Efficiency comes from the wheel itself and its much easier to install a kkk hybrid turbo than playing with welding equipment, flanges and mounts.
Boost log from LR M tune on his custom setup with 14cm² housing.
There's also versions of these turbos with bolt on capabilities...no mount modification. I have one coming for another 951 and should hit my target boost of 20psi below 3k rpm. Still better than any hybrid out there while offering a much better curve and exponentially better driveability. Ive had hydrid kkk turbos. They suck.
09-24-2019, 04:59 PM
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