grum-glanza
Member +
i was planning on putting a gt2860rs on my 5e and my tuner told me it was way too laggy wont spool up till 5000 rpm is this true?
garett gt28rs
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ryan-11
Member +
was that on a 28rs? i never thought it would make that much power.
hmmm i dout that, im hoping to be making full boost before then on a 4e, i guess it depends on what mods u got.
Yeah Ryan, a 2860rs, I think 1.6 bar is about as efficient as it's going to get, anymore and it will start going out of it's efficiency range.
Spool up on a stock 4e I'd expect it to be around 4700, bit of headwork and cams will probably get it down closer to 4000. Although a decent map will see it into the 3000's
Spool up on a stock 4e I'd expect it to be around 4700, bit of headwork and cams will probably get it down closer to 4000. Although a decent map will see it into the 3000's
Tim@TBDevelopments
Lifer
remember head work like porting, bigger valves and cams will increase lag not decreasing it. its because of port velocities etc. all that stuff gives better top end at the decrease of low down efficiency.
if it helps at all i was getting 1bar on 3sgte engines by 2900-3000rpm, and i've done a bit of work with CVH ford engines, 1.6ltr and a really crappy 8valve head and they were getting 1 bar by 3500-3600rpm.
5e is similar in capacity and better head design
Hope that might enlighten a little
Tim
if it helps at all i was getting 1bar on 3sgte engines by 2900-3000rpm, and i've done a bit of work with CVH ford engines, 1.6ltr and a really crappy 8valve head and they were getting 1 bar by 3500-3600rpm.
5e is similar in capacity and better head design
Hope that might enlighten a little
Tim
remember head work like porting, bigger valves and cams will increase lag not decreasing it. its because of port velocities etc. all that stuff gives better top end at the decrease of low down efficiency.
if it helps at all i was getting 1bar on 3sgte engines by 2900-3000rpm, and i've done a bit of work with CVH ford engines, 1.6ltr and a really crappy 8valve head and they were getting 1 bar by 3500-3600rpm.
5e is similar in capacity and better head design
Hope that might enlighten a little
Tim
more inclined of thinking that head work would cut down lag ?
grum-glanza
Member +
hmmm i dout that, im hoping to be making full boost before then on a 4e, i guess it depends on what mods u got.[/QUOTE]
the only thing i have done to my head is triple valve cut and port and polish standard 5e cams my own turbo is away getting a price for a rebuild if its going to cost close to what a new garett is i'll just go with a new turbo and i'll find out once and for all how good or bad it is
the only thing i have done to my head is triple valve cut and port and polish standard 5e cams my own turbo is away getting a price for a rebuild if its going to cost close to what a new garett is i'll just go with a new turbo and i'll find out once and for all how good or bad it is
Tim@TBDevelopments
Lifer
nope larger cams for example will increase lag. timing for timing ofcourse
i've had 365bhp on a 3sgte from the 2860rs but looking at the charts and experience i wouldn't go more than the gt2871r as anything above gets very off ballanced in turbine to compressor ratio. i've got a 2871 on mine up from a 2860rs and it doesn't have the kick, feels quite latargic in comparison yet made similar power. I'd be looking at the new range of GTX2863r or GTX2867r turbos, over the 2871r
Tim
i've had 365bhp on a 3sgte from the 2860rs but looking at the charts and experience i wouldn't go more than the gt2871r as anything above gets very off ballanced in turbine to compressor ratio. i've got a 2871 on mine up from a 2860rs and it doesn't have the kick, feels quite latargic in comparison yet made similar power. I'd be looking at the new range of GTX2863r or GTX2867r turbos, over the 2871r
Tim
Tim@TBDevelopments
Lifer
where was that done? never seen a quad setup on anything smaller than a GT40 sized frame. quad on such a small turbo would probably negate the purpose of BB and a normal oil journal would have gave faster spool
Tim
Tim
Topher-EP82
Member +
ssorry i can't add info but found this on youtube
http://www.youtube.com/watch?v=-m4aZiGAhoI - as for which variant it is i don't know.. sounds good and goes well though at 1 bar.
http://www.youtube.com/watch?v=-m4aZiGAhoI - as for which variant it is i don't know.. sounds good and goes well though at 1 bar.
Tim@TBDevelopments
Lifer
they have quad ball bearing on alot of topend drag turbos running stupid boost levels, or on diesel tractor pulling where they use dual or tripping compound turbo producing over 15bar boost pressures.
Like i said never seen to used in such a small turbo like a gt28, i can't really see any benifit as its just not going to see the loads of pressures that warrant a triple or quad bearing unit
Tim
Like i said never seen to used in such a small turbo like a gt28, i can't really see any benifit as its just not going to see the loads of pressures that warrant a triple or quad bearing unit
Tim
ramses974
Member +
i ma verybn interested in...
my 1st set up was made with BYP florida and i was in GT28 and 5E ...
wildchild
Member +
This is the kit listed. bought it from sacha.
http://www.toyotagtturbo.com/forums...ake-manifold-e-manage-used-manifold-downpipes
btw the specs on the turbo that i got from sacha are as below, but i have my doubts as he is not willing to tell the full specs and admitted that some of the info he sent me arent true. dont know if it was business or what..
"custom WEPR garret GT28r hybrid with 60mm trim compressor housing with custom HKS 76mm compressor wheel and custom quad ball bearing centre cartridge with 360 thrust washers (for high boost), custom lightweight turbine wheel and custom turbine housing. capable of 2bar"
http://www.toyotagtturbo.com/forums...ake-manifold-e-manage-used-manifold-downpipes
btw the specs on the turbo that i got from sacha are as below, but i have my doubts as he is not willing to tell the full specs and admitted that some of the info he sent me arent true. dont know if it was business or what..
"custom WEPR garret GT28r hybrid with 60mm trim compressor housing with custom HKS 76mm compressor wheel and custom quad ball bearing centre cartridge with 360 thrust washers (for high boost), custom lightweight turbine wheel and custom turbine housing. capable of 2bar"
Tim@TBDevelopments
Lifer
not calling the guy a lier or anything, but quad core seems a little unlikely on a GT frame, spoke to garrett and they said its not possible (but we all know if you want it doing anythings possible) so not taking that as a firm answer.
The other thing is you don't have any size degree thrust bearings on a ball bearing turbo, this is the main point of ball bearing.
that being said those turbos are capable of 2 bar anyway even in standard form so no doubts on quality there, I'm sure it'll full-fill all your needs.
Turbo kit looks nice as well
Tim
The other thing is you don't have any size degree thrust bearings on a ball bearing turbo, this is the main point of ball bearing.
that being said those turbos are capable of 2 bar anyway even in standard form so no doubts on quality there, I'm sure it'll full-fill all your needs.
Turbo kit looks nice as well
Tim