#164283 - 01/10/06 09:22 AM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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even a SC61 which will support 600whp will have less "lag" than your vortec charger. below vtec in a vortec car feels worse than stock IMO. i removed a vortec from a b16 and below vtec felt sooo much better....above vtec was obviously weaker though.
for 300whp on a b16 i'd go with a sc34 .48. you could get by with a sc50 but its going to take a little bit more boost to get to your HP goal. a T3.48 5 bolt exhaust with a "E"housing on the compressor side. if you do the full race kit you get to keep your ac/ and power steering with a EL manifold. the back door intercooler set up will help everything be more responsive as well.
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#164284 - 01/10/06 09:24 AM
Re: Turbo related question
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chrisgcivicsi
Major Member
Registered: 06/12/02
Posts: 1346
Loc: Germany
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This site should help you understand about turbo a/r and trim www.turbobygarrett.com .Also i dont think the Vortech has that much lag. Now you dont reach full boost until redline unlike a turbo that sees full boost alot earlier meaning more power potential earlier and longer. Were as a the Vortech is a gradual incline to redline. When i was running the 8-9 psi pulley i would reach 9 at 8200 now with the 10psi pulley i reach 10 at 8200 and 12psi at 8800 rpm cause i can rev that high. Pretty much the Vortech doesnt come produce until your in vtec. I see 5psi at 4800rpms were vtec comes in and boost psi climbs from there to redline. I think even when not in boost the car accelerates faster then when it did without the vortech. So passing a car on the interstate is easier and with less gas with the vortech then when i didnt have it. Same probably goes with a turbo system also I would think.
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#164289 - 01/10/06 01:17 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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im going to go ahead and say this...i have only really had hands on experiance with one vortec car. i didnt care for it at all. i am going to HOPE that for some weird reason this car just wasnt running good or something....however air/fuel was perfect...it made the boost it was suposed to make....and the compression on the motor was pictuer perfect. actually the b16 ran VERY strong for a b16 after we took the charger off. like i say i hope these other vortec cars are more impressive than this one was.....
i think the fullrace kit would be an excelent choice. i was saying something alone the lines of the sc34 would be great for your set up. im just more familiar with the precision part numbers so i threw that out there.
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#164293 - 01/10/06 05:22 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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its late here now...i will get back to you tomarrow with the requested information. i'll try to post some pictures tomarrow of my most recent 4 inch exhaust too
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#164296 - 01/11/06 05:55 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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hey man i was slammed all day doing another custom exhaust and tuning a car.....i didnt have time to get anything done that i needed to...i will do my best to get back to you with that stuff tomarrow.
its tuff trying to do the tuning/welding/fabbing/officestuff/internet stuff yourself!!
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#164297 - 01/11/06 07:13 PM
Re: Turbo related question
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SamuraiSam
Post Master Sr
Registered: 07/29/02
Posts: 8828
Loc: Bellingham, WA
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well even though i am not Joe i will chime in
(i am assuming you are familiar with & have already read our FAQ at the top of the page)
300+ whp can be accomplished on a GT28RS.
Your goals of having boost at 3000rpm with "great top end" are not realistic. You aren't going to be making much power at 3000rpm even if you are hitting full boost by then.
If you are on a stock block then a GT2871 is a good internally gated turbo that will produce a broad powerband early and not make too much peak HP. If you want to spend more money and have more top end then look into some of the GT30R's which are non-gated turbos. (some of them are, i think they are available in a 71 and 76)Then if you want to build your engine and go with a larger turbo and produce more high RPM power sure... but for a daily driver.... you could probably get 500whp out of a GT3076R.
GT3076R info page
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#164298 - 01/12/06 02:06 AM
Re: Turbo related question
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VSC16VT
Jr Member
Registered: 11/04/04
Posts: 384
Loc: Europe, Gibraltar
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Hey ,
Yes I have read the FAQ many times and Iam no newbie but I aint a expert either, I am not saying full Boost at 3000rpm, what i mean is that theres some boost around 3500rpm. GT30R  isnt that a bit too big?? I dont want 500whp thats insane for where i live and the uses i have for my car lolol, the power band iam looking for is 300whp to 350whp no more , i dont think i need anymore than that for daily driving in a start and stop traffic area and one in a while autoban in spain.
The GT28RS seems to have a better powerband than the GT3071 thing is ive been looking at full race kitys at the GT kits Stage 1 and Stage with AC and stage one features GT28RS and the stage 2 features GT3071 I beleive, iam looking at somthing not laggy but that can with hold boost tille stock line. Youve got to admit looking at the GT28RS the torqure is excellent at low rpm on the stock gsr dyno shown at evans tuning itsl ike nearly 150wtq at around 3500 i beleive only at higher rev do u see the tq droping down, after reading some posts in honda tech apparently boost was falling off and also the clutch was slipping. Beside the GT28RS with the T3 housing does not use the internal wastegate  *i think lol*, and I wont be using a internal wastegate ... external any day  .Thanks for the help i'll still wait for Turbo charged opinion, any other opinions are welcome too... Siadam maybe you should have a go at this post as you at one time was looking for somthing similair..
Further NOTE: I will be runing 9:5:1 or 9:1 CR forged pistons and forged con rods and other minor mods such as block girdle,*mayb slighty upggraded valvetrain*, JE throttle body / GSR cams/Port Polish /i may go over bore, not sure cos i cant sleeve the block wud cost too much to ship to the US/Intake mainofld no idea yet..... before i was getting blox since i was going to use the VSC .. now i dunoo i might go with victor X or Full race intake manifold what ever is best  .
Edited by VSC16VT (01/12/06 02:24 AM)
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#164302 - 01/12/06 02:50 PM
Re: Turbo related question
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TypeSlow
Post Master Jr
Registered: 01/14/02
Posts: 1646
Loc: Port Charlotte, FL
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Quote:
I should have stayed away fron honda tech they keep convincing me to go turbo , now Ive been thinkin of selling the unused vortech and go turbo.. prefebaly Full Race kits looks good, theres one thing i dont really grasp about turbos are the a/r and trims they confused me. I was look at full race AC kits stage 2 GT i need somthing that can provide 300whp, no lag at all"quick spool" and good mids and excellent top end . I also need to keep p/s and A/c. Also ... I hate lag... and i may look into turbo since "aparently the vortech is laggy.... " . In may i will have the ability to build on the vortech and put it on or ... go turbo fully built except sleeves. This car is daily driven Civic Si Ek4 hatchback. Enlighten me gurus of the boost ..
parasitic loss sucks the balls... small displacement and blower...bleh...
_________________________
TakE iT tO thE tRacK!!!
2000 Si ~~~ UNDER CONSTRUCTION ~~~
Coming Soon: GT3586 and a buttload of other goodies!!
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#164303 - 01/12/06 06:18 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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hey man i was slackass today too......i'll post pictures of what occupied my whole day though. tomarrow is friday and i have gotten a lot done in the past few days so i'll try to take a few min. to make some phone calls for ya.
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#164305 - 01/13/06 02:50 AM
Re: Turbo related question
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VSC16VT
Jr Member
Registered: 11/04/04
Posts: 384
Loc: Europe, Gibraltar
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#164308 - 01/14/06 11:32 AM
Re: Turbo related question
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baellremoteuse
Member
Registered: 10/07/05
Posts: 840
Loc: Michigan :)
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Gt30whatR?
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Be lamps unto yourselves. If you can not read do not post.
Lead by example *67, not with threats.
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#164315 - 01/16/06 12:48 PM
Re: Turbo related question
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baellremoteuse
Member
Registered: 10/07/05
Posts: 840
Loc: Michigan :)
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No, there should be no parts review to compare a gt3076 and a 3071, people should go learn what those numbers mean.
_________________________
Be lamps unto yourselves. If you can not read do not post.
Lead by example *67, not with threats.
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#164316 - 01/16/06 03:11 PM
Re: Turbo related question
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TypeSlow
Post Master Jr
Registered: 01/14/02
Posts: 1646
Loc: Port Charlotte, FL
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Quote:
No, there should be no parts review to compare a gt3076 and a 3071, people should go learn what those numbers mean.
well then something to help learn the difference. after all, this site is to learn things too isn't it?
_________________________
TakE iT tO thE tRacK!!!
2000 Si ~~~ UNDER CONSTRUCTION ~~~
Coming Soon: GT3586 and a buttload of other goodies!!
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#164319 - 01/17/06 07:35 AM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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yes...for sure. i havnt really dealt with any of the GT series turbos smaller than the 35R....but i know right off the bat the GTR series turbos are where its at....its all i want to use on my car from now on.....if you can affored it go for it.
ALWAYS go with something a little larger than you want....just like you said you WILL want more power down the road! unless your set on the power goals you set i'd even consider the GT30R's.......i actually prefer a little bit of lag....and the whole "lag" thing is something you need to experiance first hand to understand that its not as bad as people make it out to be as long as you dont have like at PT70 on your car or something... the bigger GT28 is rated at 440 Flywheel horsepower...but the GT series turbo's are underrated.......keep in mind that if your going with a smaller turbo and want to make 350-400whp its going to take a lot of boost. thats the nicer part of going with a turbo thats slightly larger...you can make the same horsepower at lower boost levels which is better on pump gas.
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#164321 - 01/17/06 10:10 AM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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not sure on PSI....i'd say just run a low boost setting of 10-12psi and then a "fun" setting at around 15psi on pump gas. should make the power your looking for no problems.
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#164323 - 01/17/06 11:39 AM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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i like compression with boost when on race gas.....but for a pump gas car i'd just stick to 9:1
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#164325 - 01/17/06 01:04 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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just stick to 9:1
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#164330 - 01/17/06 04:51 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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boost response between shifts is much much much much greater with a ball bearing turbo too 
also....another thing i think is funny about the whole "lag" thing........ even with a small turbo....a lot of times the gauge will say 5psi or so but the car still isnt going anywhere.....like in 5th gear if you stomp it going up a hill......sure the car will make boost at a low rpm....but its not going anywhere...so who cares! you will be happy with the turbo you have selected
Edited by Turbo-charged (01/17/06 04:52 PM)
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#164332 - 01/18/06 07:51 AM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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nah....you want a smaller wheel with a bigger tire for traction. the more sidewall the better. just like on slicks....we run 13 inch wheels with 24.5 inch tire. more sidewall = more traction.
9.5 compression will be fine, just leaves less room for tunning errors than a 9:1 piston
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#164334 - 01/18/06 05:04 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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me and geoff reccomended the same turbo.....thats kinda funny. jeff's car just made 790whp @ 44psi of boost with a GT40R. SSSSIIIIIICCCCKKKK
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#164337 - 01/18/06 05:28 PM
Re: Turbo related question
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Turbo-charged
Post Master
Registered: 07/02/02
Posts: 2386
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yea me and geoff talk pretty frequently.
Edited by Turbo-charged (01/18/06 05:28 PM)
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#9142356 - 09/27/17 05:10 AM
Re: Turbo related question
[Re: VSC16VT]
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lzm
Jr Poster
Registered: 06/01/17
Posts: 115
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Moderator: M3Pilot or M3Driver, SiAdam, Professor Paki
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) is available with the t28 exhaust housing iirc.
