As some of you already know, I am currently in the process of rebuilding my LSVTEC. Here’s a basic list of the mods I have plus or minus a few small things:
My head currently consists of the following:
93 GSR B17A unmilled head
3-angle valve job and resurfaced
CTR cams
ITR valvesprings
RC cleaned/balanced 245cc/min injectors
B&M FPR
All new seals and gaskets
My bottom end is as follows:
B18A shortblock
US ITR 0.025 pistons (will give me around a 10.8:1 C/R; very 91 pump gas friendly)
Eagle LS rods
Balanced/micropolised LS crank
B17 Oil Pump
New LS water pump
All new gaskets, seals, and belts
Going with Hondata Stage 2. Plan on revving to no higher than 8600 rpms and very rarely.
Now question is with the money left over, I have the choice to get either a GSR girdle setup (girdle, oil pan, pickup, windage tray, bolts and caps) or RC 270 cc injectors. I don’t know if the girdle would be a good investment in the long run b/c of the poor R/S ratio or if the stock injectors would be fine with the C/R I’m running and avoid detonation and setting timing at 16 degrees. Which of the two do you think I should go for? Need some opinions. TIA.
Definitely the crank girdle…
Your injectors should be more than sufficient for your setup.
As a safety precausion/tuning tool, I would get a a/f meter and call it a day.
Hey Leo wassup?
I just got my Z10 girdle and its a very beefy peice. I know its a little pricey but I think it would be a good investment or at least look into it. It has a more solid and heavy feel than a stock GS-R girdle plus you wont have to mill the main caps to accommodate the girdle. I got mine off of the GB that NRG had awhile back for $250 shipped. HTH
Originally posted by Tegman
[B]Hey Leo wassup?
I just got my Z10 girdle and its a very beefy peice. I know its a little pricey but I think it would be a good investment or at least look into it. It has a more solid and heavy feel than a stock GS-R girdle plus you wont have to mill the main caps to accommodate the girdle. I got mine off of the GB that NRG had awhile back for $250 shipped. HTH
Aron [/B]
My thoughts too. I think you’ll be ok with your stock injectors for a while as long as you’re not messing with your timing and cam gears. I definitally think a Z10 girdle would be best since it will be a great investment and you’re engine can only benifit from it.
Originally posted by zoomintegra what are the stock injector flow rates? with the engine i’m building (slowly) i suppose i should find out. TIA
246cc. The next step up is 270cc, then 310cc. I believe balanced and blueprinted 246cc stock injectors are good up to 200 whp and at compression ratios not much higher than 11.5:1.
I’ve asked about the girdle on other boards and they are saying that the 94+ GSR/Type-R oil pan (needed for girdle setup) is too large to accomodate any type of aftermarket header. I actually had trouble fitting my DC 4-2-1 with the 93 GSR B17A oilpan and only my stock 93 LS exhaust manifold would barely fit. Eric (IQ GSR) and I swapped out the 93 GSR oilpan for my 93 LS pan and then the header fit fine. I would definitely go with the girdle since it’s a better investment in the long run, but I guess the oil pan is going to get in the way. Going injectors. Thanks again for the replies.
Regarding the header issue, this is only the case with our generation tegs and not the G3 tegs. We don’t have much clearance to begin with when fitting an aftermarket header with an LSVTEC setup.
yeah tell me about the headers…i just got the JG/Eldebrock header and man its a pain in the but just to make it fit…but its possible…also…Also y don’t you get a fuel pump too…get a Walbro!!!your injectors are fine…c/r is perfect too…mine is 12:1 very scary but the thing is no pinging yet…plus running on 92 octane and reving this thing up to 9k is scary…
VietG: Phil, the groove on the oilpan where the bottom half of the header fits is barely wide enough to fit an aftermarket header. This is when using an LS oilpan. The DC 4-2-1 header will definitely not fit with the 93 GSR oilpan. Trust me, we tried. Only the stock 93 LS manifold will fit since the bottom half consists only of a single exhaust pipe when it comes next to the oilpan. I wanted to fit a 4-1 or a JDM aftermarket 4-2-1 with a 2.5" collector but I think the primaries would be too big to fit in that groove. Which oilpan are you using?
gen2ls/vtec: Reason why I didn’t opt for the ITR IM is first b/c of money (even though it’s a pretty good price for a quality OE piece) and second I’ve heard hp and mainly tq losses across the powerband which only make up for a small increase at peak rpms. Thanks for the recommendation though.
It can be done and is done often. You’ve just really got to know your stuff and keep a close eye on things. They turn out good numbers.
-Steve [/B]
yes for example on a full brlown drag queen ( my friend’s DC ) we got 522hp and 402ft lbs of TQ. to the wheels. but street versions running lower boost will still yield impressive numbers like around 250-300
TIA
TIA